Shared Flashcard Set

Details

Pharm, Block 3
Condensed Drug List
280
Pharmacology
Graduate
02/18/2012

Additional Pharmacology Flashcards

 


 

Cards

Term
Growth hormone (GH)
Definition

Somatotropic Hormone;

Acts on target tissues (esp liver) through JAK2 (a TK) to initiate signalling pathways;

Production of IGF-1(&2) to exert effects;

↓ insulin sensitivity, ↑ lipolysis, ↑ protein synth, ↑ epiphyseal growth;

 

Secretion stimulated by hypoglycemia, insulin;

 

Physiologic pulsatile release

Term
Somatropin
Definition

hGH;

Replacement therapy in children;

Tx: Pituitary dwarfism (in kids most effective if given early, d/c when growth stops);

Tx in adults: reduce CV dz mortality, AIDS-associated wasting;

SE: Kids (fewer) - leukemia (don't give w/i 2 years of tx for cancer), ↑ ICP (intracranial HTN), nausea;

SE: Adults - Peripheral SE: carpal tunnel, peripheral edema, arthralgia, myalgia;

 

CI: with cancer tx

Term
Cabergoline
Definition

D2 receptor agonist;

Suppresses prolactin release from the anterior pituitary;

↑ affinity/ ↑ t1/2 compared to Pergolide;

 

Tx: Hyperprolactinemia from pituitary adenoma

Term
Octreotide
Definition

Somatostatin analog, most widely used;

Inhibits insulin, glucagon, GH, and TSH release;

3x daily injections- Short t1/2;

 

Tx: Insulinomas, glucagonomas, acromegaly, gigantism;

 

SE: diarrhea, nausea, abdominal pain;

 

Long acting prep (Sandostatin-LA) now availible (1 injection every 4 weeks)

Term
Menotropin
Definition

FSH + LH prep;

Extracted from post-menopausal urine;

IM admin (are peptides);

 

Tx: Female infertility

Term
Leuprorelin
Definition

GnRH analog;

Longer t1/2, better receptor binding - induces receptor downregulation;

 

Admin is pulsitile via IV pump;

 

Tx: Reproductive disorders secondary to reduced GnRH;

 

SE: Phelbitis at pump site;

 

Not approved for use in men (gonadotropins are prefered in men. Gonadotropins in women=risk of multiple pregnancies)

Term
Cosyntropin
Definition

Synthetic ACTH - a corticotropin (24 AA);

Binds a membrane receptor and exerts actions via adenylate cyclase activation and cAMP ↑;

Preferred to natural product (HP Acthar Gel isolated from animal adrenals) b/c the synthetic lacks the contamination which = vasopressin activity;

 

Use: test integrity of HPA axis (only real clinical use of ACTH) - inject (IM/IV) Cosyntropin and measure cortisol at 30 and 60 mins (spike in cortisol means there are functional ACTH receptors in the adrenal cortex - Z. fasiculata)

Term
Betamethasone
Definition

Glucocorticoid (hydrocortisone);

Long t1/2;

Oral, topical, inhaled admin;

 

Tx: bronchial Asthma, skin irritation

Term
Aminoglutethimide
Definition

Adrenocortical "inhibitor";

Inhibits CYP450scc (side chain cleavage, first step in cortisol synthesis from cholesterol) - Decreases cortisol production;

 

Tx: Cushings (inhibits cortisol overproduciton)

Term
Ethinyl estradiol
Definition

Estrogen - synthetic 17alpha;

Addition of ethinyl (triple bonded) ↓ first pass met;

 

General Estrogen Effects: ↑ HDL/↓ LDL, induce epi plate closure, antagonize bone resorption/clast activity, ↑ libido, induces synth of TBG, transcortin, SHBG, and clotting factors from the liver, and stimulates the progression of endometrial/breast tumors;

 

Tx: CONTRACEPTION (most common Rx);

 

SE: ↑ risk of thromboembolism, ↑ breast size, excitement

Term
Norethindrone
Definition

Synthetic progesterone;

Progesterone actions: maintenance of pregnancy, development of breast ductal system, inhibition of uterine contraction, elevation of basal insulin levels (glycogen storage), ↓HDL/↑ LDL, stim lipoprotein lipase, ↑ temp in ovulation;

 

Tx: Endometrial cancer, progesterone component of many birth control and morning after products;

 

SE: ↑ risk of cardio disease, acne, weight gain

Term
Tamoxifen
Definition

SERM;

Tissue selective! Estrogen Agonist in bone, brain, liver,

Antagonist in breast, endometrium - blocks only where you need it to!;

 

Tx: Breast & endometrial cancers

(Blocks the estrogen stimulation of cancers while maintaining normal fxn elsewhere)

Term
Raloxifene
Definition

SERM;

Tissue selective! Estrogen Agonist in bone, brain, liver,

Antagonist in breast, endometrium;

 

Tx: Breast & endometrial cancers (blocks estrogen stimulation of cancers w/o effecting other tissues)

Term
Clomiphene
Definition

True Anti-estrogen;

Antagonist in all estrogen receptors (ER-alpha & -beta);

Ovulation induction via reflex inc GnRH;

 

Tx: Infertility (via ovulation induction);

Term
Fulvestrant
Definition

Anti-estrogen;

Antagonist in all tissues (ER-alpha & -beta);

Ovulation induction via reflex inc GnRH (blocks estrogen feedback on the hypothalamus);

 

Tx: Ovulation induction to tx Infertility

Term
Mifepristone
Definition

Anti-progestin;

 

Blocks Progestin receptor for the termination of gestation in first 7 weeks;

 

Abortifacient

Term
Anastrozole
Definition

Aromatase inhibitor;

Blocks the conversion of androgens to estrogens,

Decreases estrogens to very low levels;

 

Tx: Breast cancer after Tamoxifen fails

Term
Testosterone
Definition

Androgen;

[A] Bind androgen receptor - transcriptional regulation; [B] Conv to DHT - which has ↑ potency;

[C] Conv to estradiol - closes epiphyseal plates;

 

Tx: Elderly men (↑ muscle mass), IM injection for HRT, endometriosis, PMS, anabolic steroids;

 

SE: Masculinization/virilization, Edema*, Cholestatic hepatitis (jaundice, esp with alkylated products), Priapism, CAD, hepatic carcinoma (HCC), suppression of LH & FSH release (reduces spermatogenesis)

Term
Methyltestosterone
Definition

Testosterone derivatve;

Oral, short acting;

[A] Binds androgen receptor - transcriptional reg;

[B] Conv to DHT - ↑ potency;

[C] Conv to estradiol - closes epiphyseal plates;

 

Tx: Elderly men (↑ muscle mass), IM injection for HRT, endometriosis, anabolic steroids;

 

SE: ↑ CHD risk, virilizing in women (excess T), feminizing in men (dt conversion to estradiol), suppression of FSH/LH (↓ endogenous T production, spermatogenesis, testicular size), edema, cholestatic hepatitis, prapism, hepatic carcinoma

Term
Danazol
Definition

Testosterone derivatve;

IM, long acting;

[A] Binds androgen receptor - transcriptional reg;

[B] Conv to DHT - ↑ potency;

[C] Conv to estradiol - closes epiphyseal plates;

 

Tx: ENDOMETRIOSIS*, PMS (advantage here bc this drug is only weakly androgenic*),

In elderly men (↑ muscle mass), IM injection for HRT, anabolic steroids;

 

SE: CHD, Virilizing/Feminizing, reduced testis size/spermatogenesis/endogenous T production, edema, cholestatic hepatitis, priapism, hepatic carcinoma.

Term
Cyproterone acetate
Definition

Androgen receptor antagonist;

Competes with DHT;

 

Tx: Acne, baldness, virilizing syndrome, sexual deviants (reduces libido)

Term
Flutamide
Definition

Androgen receptor antagonist;

3x daily dosing;

 

Tx: Prostate cancer;

 

SE: Hepatotoxic*

Term
Finasteride
Definition

(Propecia);

Blocks testosterone conversion to DHT (5 alpha reductase inhibitor);

 

Tx: BPH, male-pattern baldness;

 

SE: Teratogenic (pregnant women really shouldn't even touch this drug, adverse effects especially on a Male fetus)

Term
Tobutamide
Definition

1st Gen. Sulfonylurea;

Oral admin (1-2x daily), rapidly absorbed, extensive protein binding;

Acts @K+ channel;

Initially ↑ insulin release (not a long term effect);

↑ insulin sensitivity by enhancing the effect of insulin on ↑ glucose uptake;

 

Tx: DM, promote hypoglycemia;

 

NSAIDs enhance the hypoglycemic action of sulfonureas

Term
Acetohexamide
Definition

1st Gen. Sulfonylurea;

Oral admin (1-2x daily), rapidly absorbed, extensive protein binding;

Acts @K+ channel;

Initially ↑ insulin release (not a long term effect);

↑ insulin sensitivity by enhancing the effect of insulin on ↑ glucose uptake;

 

Tx: DM, promote hypoglycemia;

 

NSAIDs enhance the hypoglycemic action of sulfonureas

Term
Glipizide
Definition

2nd Gen Sulfonylurea-10-100X more potent than 1st;

Oral admin (1-2x daily), rapidly absorbed, extensive protein binding;

Acts @K+ channel;

Initially ↑ insulin release (not a long term effect);

↑ insulin sensitivity by enhancing the effect of insulin on ↑ glucose uptake;

 

Tx: DM, promote hypoglycemia;

 

NSAIDs enhance the hypoglycemic action of sulfonureas

Term
Repaglinide
Definition

Meglitinide - benzoic acid derivative- oral hypoglycemic;

Very rapid GI absorption;

 

↑ insulin secretion;

Short t1/2, used to lessen the post-prandial glucose spike (take before* each meal);

 

Tx: DM, promote hypoglycemia;

 

SE: Severe hypoglycemia*;

Term
Metformin
Definition

Biguanide oral hypoglycemic agent;

GI absorption - little first pass metabolism;

 

Activates AMP-stimulated protein kinase and specifically ↓ hepatic glucose production;

Also inhibits hepatic and renal gluconeogenesis, stim gulcose uptake/glycolysis in the periphery, slows glucose abs form the GI, and ↓ plasma glucagon levels;

 

No hypoglycemia, NO INSULIN AXN, no weight gain;

 

Tx: Type II DM;

 

SE: GI disturbance and

BLACK BOX warning for lactic acidosis;

 

Can be given in combo with Glyburide (2nd gen sulfonuria drug with insulin effects)

Term
Pioglitazone
Definition

Thiazolidindione;

GI absorption - little first pass metab;

 

Binds the PPARγ receptor = ↓ insulin resistance in the liver and peripheral tissues. ↓ withdrawal of glucose from the liver;

Reduces quantity of glucose, insulin and glycated Hb in the bloodstream;

In sum: ↑ insulin sensitivity;

 

Tx: DM, promote hypoglycemia;

 

SE: Fluid retention/edema/weight gain, anemia, bone fractures in women, may worsen cardiac disease.

Term
Acarbose
Definition

Oral hypoglycemic agent;

Intestinal Alpha-glucosidase inhibitor;

↓ carbohydrate (starch) abs by preventing the breakdown of carbs;

↓ post-prandial glucose spike;

 

Tx: DM, promote hypoglycemia;

 

SE: GI disturbances;

 

Used in combo with other drugs*

Term
Exenatide
Definition

Parenteral hypoglycemic agent;

Synthetic Incretin (GLP-1 analog)- Works thru GIP/GLP-1 mechanisms, (more potent) to improve glycemic control;

↑ insulin secretion in response to glucose, ↓ glucagon stimulated glycogenolysis, slows gastric emptying, ↓ appetite, ↓ glucagon, some ↑ in beta cells = hypoglycemia/reduced rise in post-prandial blood glc;

 

SE: GI, HA, Pancreatitis*

Term
25-OH cholecalciferol
Definition

Calcitriol mimetic;

Converted in the body to calcitriol;

 

Tx: Rickets, osteomalacia, hypoparathyroid, osteoporosis

Term
Calcipotriol
Definition

Calcitriol analog;

 

Tx: PSORIASIS (better than glucocorticoids), rickets, osteomalacia, hypoparathyroid, osteoporosis

Term
Etidronate
Definition

1st Gen. Bisphosphonate;

Less effective orally (oral admin is tough but done) - Take in am, without food and with a full glass of water;

 

Analog of inorganic pyrophosphate - inhibits bone resorption;

 

Tx: Pagets Dz*, osteoporosis, (tx hypercalcemia only when given by IV infusion);

 

SE: If via IV admin (not the common use but can tx hypercalcemia), osteonecrosis of jaw (not common in 1st gen)

Term
Alendronate
Definition

Fosamax;

2nd Gen. Bisphosphonate - more potent;

MC Rx for post-meno Tx;

Analog of inorganic pyrophosphate - inhibits bone resorption;

Take in am, without food and with a glass of water;

 

Tx: Pagets, osteoporosis (post-menopausal);

 

SE: via IV admin, osteonecrosis of jaw (not common in 2nd gen), irritation of esophagus

Term
Risedronate
Definition

3rd Gen. Bisphosphonate - HIGH POTENCY;

Analog of inorganic pyrophosphate - inhibits bone resorption;

Take in am, without food, with water;

 

Tx: Pagets, osteoporosis, Lytic Bone Cancers (prostate and breast - 3rd gen only);

 

SE: via IV admin, osteonecrosis of jaw (common in 3rd gen drugs)!

Term
Zoledronate
Definition

3rd Gen. Bisphosphonate - HIGH POTENCY;

Analog of inorganic pyrophosphate - inhibits bone resorption;

Take in am, without food, with water;

 

Tx: Pagets, osteoporosis, Lytic Bone Cancers (prostate and breast - 3rd gen only);

 

SE: via IV admin, osteonecrosis of jaw (common in 3rd gen drugs)!

Term
Cinacalcet
Definition

Calcimimetic - Ca sensing receptor mimetic;

 

Binds allosterically to the calcium sensing receptor (CaSR) in the parathyroid gland and allows PTH suppression at lower actual [Ca2+], suppresses PTH/effectively ↓ circulating PTH;

 

Tx: Hyperparathyroidism in pts with parathyroid carcinomas;

Term
Metronidazole
Definition

Anti-Protozoal;

Prodrug- requ activation by sensitive organisms = enzymatic reduction;

Blocks pyruvate:ferrodoxone oxidoreductase;

90% bioavail, BBB penetration, low protein binding;

Oral admin;

 

Tx: Trichomonas, Entamoeba, Giardia, anaerobes (B. fragilis, C. diff);

 

SE: GI, HA, metallic taste*, dizziness, disulfriam-like reaction*, anorexia, neuro tox;

 

CI: in pt with CNS dz (dizziness, vertigo, neuropathies) and in pregnant women (teratogenic*);

 

Interactions: Metronidazole inhibits the secretion of Lithium and of Coumadin (toxicity and ↑ PT)

Term
Atovaquone
Definition

Anti-Protozoal;

Inhibits electron transport chain = ↓ pyrimidine synth; 99% protein bound, lipophillic, hydrophobic - enterohepatic reciculation;

 

Tx: Pneumocystic pneumonia (PCP)*, Toxoplasma, Entamoeba, Trichomonas, P. falciparum;

 

Few SE: rash, nausea possible

Term
Eflornithine
Definition

Anti-Protozoal;

Oral (50% bioavail) or IV admin;

Inhibits ornithine decarboxylase to block polyamine synthesis;

 

Tx: West trypanosoma (East has less stable ODC, not as good a target);

 

SE: Anemia & leucopenia*, diarrhea, convulsions, GI, alopecia;

 

Thereputic dosage is large and requires concurrent admin of IV fluids, may lead to fluid overload.

Term
Chloroquine
Definition

Antimalarial - Blood schizontocide;

Wide distribution, slow clearance (months to years)*;

Resistance: efflux at P-gp*;

 

Tx: Plasmodium, non-GI (extraintestinal-doesn't stay in the GI)* amebiasis;

Prophylactic use;

 

SE (dt concentration of this drug in melanin-containing cells*): blurred vision (corneal deposits), retina pigmentation, hemolysis (if G6PD deficient pts*), ototoxicity, myopathy, and peripheral neuropathy with high doses;

Term
Quinine
Definition

Anti-malarial - Blood schizontocide;

Binds to DNA and blocks DNA synthesis;

 

Tx: P. falci (blood), gametes of P. vivax and P. malariae;

 

Poor therapeutic index - worst of all antimalarials;

SE: ↓ cardiac contractility, dilates vessels, contracts the uterus, vertigo, hemolysis (if G6PD deficient), Cinchonism - tinnitus, blurred vision, HA, ↓ hearing;

 

CYP inducers ↓ half life of this drug and req ↑ dose;

Term
Mefloquine
Definition

Antimalaria- Blood schizontocide;

Oral admin, 98% bound, excreted in bile;

Acts only @ asexual erythrocytic stages;

Blocks DNA synthesis;

 

Tx: P. falci, gametes of P. vivax and P. malariae;

 

SE: GI, vertigo, convulsions;

 

CI: BBs, chloroquine, quinine, quinidine, hx seizures

Term
Doxycycline - Non Abx Use
Definition

Tetracycline (30S ribosome binding and inhib);

Anti-protozoal -Antimalarial - Blood schizontocide* and Abx;

Attacks plasmodia in RBC preventing or terminating the clinical attack;

 

Acts only @ asexual erythrocytic stages;

Term
Primaquine
Definition

Antimalarial - Tissue schizontocide;

Gametocidal, Hypnozoitocidal;

Take with food*;

Rapidly abs and conv to Carboxyprimaquine;

 

Tx: Prophylaxis, P. vivax and P. ovale @ hepatic and gamete stages;

KILLS P. FALCI GAMETES;

 

Good Thereputic Index;

CI: G6PD deficient (X-linked) = hemolytic anemia, avoid long term use (risk of toxicity and sensitization)

Term
Pyrimethamine
Definition

Antimalarial - Tissue schizontocide;

High abs - concentrates in RBC, Crosses the placenta, distributed in breast milk;

Inhibits DHFR;

 

Tx: P. falciparum in combo (does not tx vivax);

 

SE: Rash, ↓ hematopoeisis, megaloblastic anemia (w prolonged therapy);

 

Never used alone* often combined w/ Sulfadoxine

Term
Albendazole
Definition

Benzimidazole - Anti-helmintic;

Rapid met to albendazole sulfoxide;

Inhibits MT assembly - immobilization and death;

Blocks larval development;

 

Tx: helmintics - ascariasis, enterobius, hookworm;

 

SE: teratogen

Term
Mebendazole
Definition

Benzimidazole - Anti-helmintic;

Poor abs, highly bound;

Inhibits MT assembly - immobilization and death;

Blocks larval development;

 

Tx: helmintics - ascariasis, enterobius (pin), Trichuris (whip), hookworm (broader spectrum than Alben);

 

SE: Minor GI distress, Teratogen

Term
Praziquantel
Definition

Anti-helmintic;

↑ membrane permiability to Ca/cations -spastic paralysis;

Readily abs, hi first pass met, ↑↑ metabolites;

 

Tx: tapeworms, schistosomiasis, 3 forms of fluke (lung, liver, and intestinal);

 

SE: GI, HA;

CI: Carbamazepine & Phenobarbital ↓ bioavail; Cimetidine ↑ bioavail, Don't give to pt with ocular schistosomiasis**;

Term
Ivermectin
Definition

Anti-helmintic;

Oral admin, no met, long t1/2 (slow cl);

↑ Cl permiability of parasite membrane - inhibiting glutamate and GABA-ergic channels - paralysis;

 

Tx: strongyloidiasis, onchocerca (rvr blindness);

 

SE: GI, itch, dizzy, inflamm rxn to dying bugs*

Term
Diethylcarbamazine
Definition

Anti-helmintic;

Rapid GI abs;

MOA Unknown;

 

Tx: lymphatic filariasis;

 

SE: (relatively severe) anorexia, nausea, HA, and major reactions to the destruction of microfilariae by the host.

Term
Pyrantel pamoate
Definition

Anti-helmintic;

Poor abs; Binds Nicotinic receptors - depol blockade - spastic paralysis (bug falls off GI wall);

 

Tx: MONILIFORMIS (DoC), GI nematodes;

 

↓ SE dt localization of drug in GI - HA, dizziness, rash

Term
Cholestyramine
Definition

Bile acid sequesterant - Powder form;

Anionic compound binds - charged bile acids in GI - inhibits enterohepatic bile recycling (strong ion exchange resin) - liver excretes more cholesterol;

Safe for children and pt with hepatic dz;

↓ LDL by 25% but ↑ TGs*, no real effect in HDL;

 

SE: Sandy texture, flatulence, hypertriglyceridemia, constipation, fecal impaction, many drug interactions;

CI: In pt with complex or vital drug regimens and pt with hypertriglyceridemia.

Term
Simvastatin
Definition

HMG-CoA Reductase inhibitor - Statin;

Prodrug, intestinal abs by P-gp;

Inhibits cholesterol synthesis in liver - ↑ # of LDL receptors - ↑ clearance of VLDL and LDL from blood;

↓ LDL by 60% (dose dep), ↑HDL (not dose dep), ↓ TGs;

 

SE: GI, sleep disruption, teratogenic*, myalgia, myositis, rhabdomyolysis* (↑ CPK, acute renal failure), ↑ aminotransferases,

Interactions @ CYP3A4* and drugs that inhib P-glycoprotein mediated intestinal abs (Cyclosporine, Grapefruit juice, Gemfibrozil (req ↓ dose);

 

Cautions: Renal dz (reduce dose)

Term
Atorvastatin
Definition

HMG-CoA Reductase inhibitor - Statin;

Prodrug, intestinal abs by P-gp;

Inhibits cholesterol synthesis in liver - ↑ # of LDL receptors - ↑ clearance of VLDL and LDL from blood;

↓ LDL by 60% (dose dep), ↑HDL (not dose dep), ↓ TGs;

 

SE: GI, sleep disruption, teratogenic*, myalgia, myositis, rhabdomyolysis* (↑ CPK, acute renal failure), ↑ aminotransferases,

Interactions @ CYP3A4* and drugs that inhib P-glycoprotein mediated intestinal abs (Cyclosporine, Grapefruit juice, Gemfibrozil);

 

No dose adjustment in renal dz or with Gemfibrozil*** Do have to limit dose with CYP drugs and Cyclosporines.

Term
Ezetimibe
Definition

Cholesterol absorption inhibitor; Blocks sterol-induced internalization of NPC1L1 by blocking association with clathrin/AP2 complex;

↓ cholesterol abs by 50% - ↓ hepatic cholesterol - upregulation of LDL-R = ↓ LDL by 18%;

↓ LDL, ↑ HDL, ↓ TGs;

 

SE: GI, fatigue, gallstones*, Category C in preg, ↑ liver enzymes; Higher lvls in elderly, female pts;

 

CI: age <10 yrs, hepatic or renal insuff, lactation*

 

Mechanism is complementary to statins and they are often combined (Vytorin = combo pill)

Term
Fenofibrate
Definition

Fibrate - anti-lipid/hypercholesterolemia drug;

Active metabolite = fenofibric acid - glucaronidation; Activates PPARα nuclear receptor (liver, muscle, kidney, heart) = FA oxidation, ↑ biliary cholesterol excretion;

↓TG by 50%, ↑ HDL (Apo-A1), no effect on LDL!;

↓ CHD in pts with metabolic syndrome*

 

SE: Gallstones*, ↑ transaminases, ↓ GFR, azotemia;

 

CI: Renal dz* (drug accumulates and ↑ Cr)

Term
Levothyroxine
Definition

Synthroid = L-T4;

Most common Rx;

Calorigenic, ↑ HR/cardiac contraction force;

 

Tx: Hypothyroidism;

 

Larger doses must be used in kids, takes several weeks to reach steady state (carefully monitor levels as small changes in hormonal levels can make a big difference).

Term
Liotrix
Definition

L-T4 and L-T3;

Calorigenic, ↑ HR/cardiac contraction force;

 

Mixture is not prefered due to variability in levels.

Term
Propylthiouracil
Definition

[PTU] Thioureylenes - anti-thyroid;

[1] Inhibits I organification (via peroxidases), can't bind to thyroglobulin;

[2] Inhibits peripheral (liver) conversion of T4→T3;

 

Tx: Hyperthyroidism;

 

SE: Agranulocytosis, rash;

Less likely to cross placenta, use caution but DoC in pregnancy*** (PTU in PG)

Term
Methimazole
Definition

Thioureylenes - anti-thyroid;

Inhibits I organification(via peroxidases), can't bind to thyroglobulin;

10X more potent and longer t1/2 than PTU;

 

Tx: Hyperthyroidism;

 

SE: Teratogen, CI in Pregnancy

Term
Radioactive iodine, Na-131I
Definition

Oral admin;

Concentrates in the thyroid, beta-radiation will destroy parenchymal cells, minimum collateral damage;

Adult usage, but not in women of child-bearing age;

 

Tx: enlarged thyroid (Graves, goiter)

Term
Iohexol
Definition

Iodinated contrast medium;

Inhibits peripheral (liver, kidney, pituitary, brain) conversion of T4→T3;

 

Off Label Tx: Hyperthyroidism

Term
Cannabis sativa
Definition

Marijuana;

Delta-9-THC psychoactive compound;

Cannabinol (CBN) = less active metabolite, cannabidiol (CBD) = anxiolytic;

Retrograde transmission - ↑ extracellular K, blocks Ca++ influx, ↓ NT release, ↓ cAMP = leads to tolerance;

 

SE: Psychotoxicity (schizophrenia), carcinogenic (SCC), teratogenic*

Term
CNS effects of Marijuana
Definition

Acute - ↓ memory, confusion, depersonalization, ↑ hunger, ↓REM, ↓ balance, dry mouth;

EARLY High: Euphoria, laughter, time distortion;

 

LATE high: relaxation, introspection, dream like state;

 

Chronic: amotivational syndrome, apathy, dullness, ↓concentration, ↓memory;

Tolerance: ↓ adenylate cyclase (cAMP), ↓ receptors (CB1 - basal ganglia, limbic, cerebellum, hippocampus, nucleus acumbens, and CB2 - immune/spleen);

Cross tolerance with opiods and EtOH*

Term
Cardiovascular effects of Marijuana
Definition
↑ HR - bloodshot eyes
Term
Immune effects of Marijuana
Definition

↓ T-cells;

Suppress immune response Via CB2 receptor on lymphocytes and macrophages

Term
Endocrine effects of Marijuana
Definition

↓ LH and FSH;

 

↓ testosterone, testes ♂, ↓ libido;

 

↓GH, ↓ Prl, ↑ACTH; Anovulatory cycles ♀

Term
Respiratory effects of Marijuana
Definition
Acute - bronchodilates; Chronic - bronchoconstricts
Term
Withdrawl effects of Marijuana
Definition
Irritable, Nausea, Insomnia, Sweating, Anorexia, Hand tremor, Restlessness
Term
Dronabinol
Definition

Medical marijuana;

NATURAL product extracted THC - 7TM cannabinoid receptor agonists - GPCR, Gi = ↓ cAMP by inhibition of Adenylate cyclase > Blockage of Ca2+ entry into the cell, and ↑ extracellular K+;

 

Approved Use: Antiemetic during chemo, and to txAIDS wasting syndrome;

Possible uses - MS, spinal injury, Tourette's, dyskinesias

Term
Lysergic Acid Diethylamide
Definition

LSD - Hallucinogen;

5-HT2 partial agonist;

Physiological sx = sympathomimetic;

Psychic = Visual hallucinations, time/sense alteration, loss of boundaries, emergence of thoughts/memories, 'magically in control', synesthesia;

Rapid tolorance*

 

SE: Bad trip (prolonged psychosis), sober flashbacks

Term

Mescaline

3,4,5-trimethoxyphenethylamine

Definition

Peyote (cactus containing Mescaline Peyote Buttons); Hallucinogen - Psychedelic alkaloid;

5-HT and DA agonist;

 

Physiological  - Sympathomimetic;

Psychic - hallucinations, unusual time perception;

 

SE: paranoia and fear*;

 

Schedule 1 drug

Term
 Nicorette
Definition

Nicotine gum;

24% abs @ 6 mos 18% abs @ 1 yr;

Terminate use after 6 mo.;

Best efficacy in combination with cessation programs and pharmacologic aids e.g. zyban;

 

Must retain in mouth for 2-30 minutes. Do not swallow;

 

CI: oral lesions, active smoking

Term
Habitrol
Definition

Nicotine Transdermal Patch;

Variable time to peak plasma concentration: Prostep the longest with peak at 9 hrs;

16.8% abs @ 6 mos;

Well tolerated;

Best efficacy in combination with cessation programs;

 

SE: sleep disturbance, skin irritation;

CI: active smoking (additive fx)

Term
Varenicline
Definition

Chantix - Non-nicotine cessation compound;

Nicotine receptor partial agonist;

High affinity @ alpha4-beta2 nicotine receptors, some affinity @ 5HT-3;

25% @ 12 mos abstinence, 2nd line tx after Buproprion

 

SE: Mood changes, nausea (MC);

BB warning suicidal ideation

Term
Mecamylamine
Definition

Non-nicotine cessation aid (old Anti-HTN medication); Non-selective antagonist a non-alpha7-Nicotinic cholinergic receptors;

Crosses BBB;

Action @ brain and peripheral ganglia - ↑ SE's; Inconclusive efficacy, use w/ patch;

Term
Ethanol
Definition

NMDA antagonist, alters ion channels – initially excitatory then depressive;

Diff channels effected at diff concentrations of intox; Detox requires ADH and ALDH enzymes;

Women have ↓ gastric first pass metabolism and ↓ ADH levels = increased risk of tox;

 

SE: CNS damage, hepatomegaly, vasodilation, cardiomyopathy, pancreatitis* (acute and chronic), anemia (megaloblastic and sideroblastic), bone marrow suppression, teratogenic;

 

CI: with NSAIDs (potentiates teh gastric damage)

Term
Ethanol CNS damage, mechanisms
Definition

Thiamine B1 deficiency - Beriberi;

 

Wernicke's encephalopathy - nystagmus, ocular palsies, ataxia, gait;

Korsakoff's psychosis - Konfabulation -perminant CNS damage;

Antero and retrograde amnesia;

Cerebellar degeneration - ataxia;

Pontine myelinolysis - dysarthria, confusion;

Marchiafava-Bignami - apathy, Alz-like dementia, movement disorders;

Pellagra-Niacin B3 deficiency – 5 Ds (incl dementia, diarrhea and dermatitis);

Hepatic encephalopathy (ammonia increase);

Peripheral neuropathies,

Direct CNS toxicity

Term
Ethanol withdrawal
Definition

Early: agitation, confusion, hyperactive ANS, seizure(2-48hrs)

 

Late: DTs- hyperthermia, hallucination, disorientation; Coma, death;

 

Tx: BNZ, phenytoin, Phenobarbital (siezures) atenolol (tx early tremors, and delirium/DTs*), clonidine

Term
Methanol
Definition

Wood alcohol;

Oxidized to form FORMALDEHYDE(!) and formic ACID;

 

SE: blindness, irreversible acidosis, death;

 

Tx: OD w/ ethanol (competitive substrate) and dialysis, treat acidosis

 

Other anticdote (added to the block list) : Fomepizole (tx both methalol and ethylene glycol poisoning)

Term
Thiamine
Definition

Vitamin B1;

Should admin to all alcoholics in distress;

Replacement for thiamine lost in deficient state;

Deficiency is Beriberi Wet=CV complications  or Dry=CNS complications;

 

B1 is required for myelination and is invloved in carbohydrate (CHO) metabolism;

Term
Disulfiram
Definition

(ALDH) Acetylaldehyde dehydrogenase antagonist - ↑ acetaldehyde;

Inhibits DA beta-hydroxylase (↓ NE);

 

Induces Acetaldehyde Syndrome - ↑ HR, flushing, hypotension, N/V, HA;

No effect on cravings;

 

Tx: Chronic alcoholism;

 

SE: hepatotoxcity, depression, psychosis

Term
Naltrexone
Definition

Opioid receptor antagonist;

Long Duration of axn (24 hrs), effect t1/2=4 hrs;

 

Oral admin (extensive first pass) or Depot;

 

Tx: Alcohol abuse (↓ craving and ↓ relapse*, ↓ number of 'heavy drinking days'), and Opiate OD (but caution, precipitates withdrawl);

 

Term
Ondasetron
Definition

Zofran;

Anti-emetic - 5-HT3 antagonist;

↓ alcohol cravings by blocking the reward pathway;

 

Tx: chronic alcoholism, nausea;

 

Note that use in alcoholism tx has been shown in early onset alcoholism only, not late*

Term
Topiramate
Definition

AMPA-R antagonist, GABA-R regulator;

 

Tx: Migraines, seizures, off label to tx Chronic alcoholism (↓ # of 'heavy drinking days');

 

Need to titrate dosing;

 

SE: visual impairment/glaucoma (rare), cognitive difficulties;

Term
Atenolol
Definition

Beta-1 antagonist;

 

Tx: EtOH withdrawal stages... tremulousness syndrome, early tremors, DTs, and delirium*

 

Basically everything but the seizures that may occur late;

Term
N-acetylcysteine (NAC)
Definition

Rengenerates glutathione;

Oral or IV;

 

Tx: Acetaminophen OD when >[150mg/mL] @ 4hrs OR >[75mg/mL] @ 8 hrs, can also tx Asprin OD (?);

Use in first 10 hrs;

 

SE: anaphylaxis, N/V, taste/odor;

Term
Flumazenil
Definition

Benzodiazepine antagonist (works with BNZ receptor agonists but not with Barbituates;

 

Tx: BNZ OD;

Can produce withdrawal symptoms, not used too often*;

 

SE: N/V, dizzy, panic attacks, blurred vision, seizures*

Term
Physostigmine
Definition

Reversible anticholinesterase inhibitor;

 

Tx: Atropine O.D., and OD with other anticholinergic (antidepressant, antihistamine, antiemetic, antipsychotic) agents;

 

SE: Bradycardia, seizures*;

 

CI: TCA's (can cause heart block)

Term
Atropine
Definition

Anticholinergic;

 

Tx: Organophoshate (insecticides, parathion, malathion, diazinon and Carbamates - aldocarb, carbofuran, isolan = nerve gas) OD - all of which inhibit breakdown of Ach causing overstimlation and respiratory failure;

 

Use with supportive tx

Term
Pralidoxime (2PAM)
Definition

Reactivator of cholinesterase;

Slow IV admin;

 

Tx: Organophosphate, sarin, soman OD!;

 

Rapid admin SE's: NM block, msucle spasm, HTN, tachycardia

Term
Succimer (DMSA)
Definition

Chelator;

 

Tx: Lead poisoning in children, also tx mercury and Arsenic poisoning;

 

Reduces blood levels but does not reverse damage done by toxins;

 

SE: Hypersensitivity;

 

Hydration is key - renal excretion;

Term
Dimercaprol
Definition

Chelator;

 

First line tx for arsenic poisoning*;

Also Tx lead and mercury poisoning;

 

SE - nephrotoxic;

 

CI - G6PD deficiency - hemolysis

Term
Deferoxamine
Definition

Iron poisoning? Don't reamin inDEFERent to tx!*

Iron chelator;

 

Tx: First line for iron tox;

 

SE: Red urine*, tachycardia, hypoT, abdominal pain, N/V, flushing, fever

Term
Amitriptyline
Definition

TCA (tertiary amine);

Inhibits reuptake of NE and 5-HT at presynaptic terminals = potentiation, blocks mAch, 5-HT, and Histamine receptors*;

Very sedating + Anticholinergic effects (most);

High lipid solubility; Low therapeutic index;

 

Tx: Depression, anxiety (OCD), ADHD; 

 

SE: Orthostatic hypoT, tachycardia, confusion, anticholinergic*, worsens narrow-angle glaucoma and CHF, acidosis, delirium, seizures*;

 

CI: Additive CNS depression (EtOH, hypnotics)

Term
Imipramine
Definition

TCA (tertiary amine);

Inhibits reuptake of NE and 5-HT at presynaptic terminals = potentiation, blocks mAch, 5-HT, and Histamine receptors*;

Very sedating + Anticholinergic effects;

High lipid solubility; Low therapeutic index;

 

Tx: Depression, anxiety (OCD), ADHD, nocturnal enuresis

 

SE: Orthostatic hypoT, tachycardia, confusion, anticholinergic*, worsens narrow-angle glaucoma and CHF, acidosis, delirium, seizures*;

 

CI: Additive CNS depression (EtOH, hypnotics)

 

 CYP2D6, conjugation = ↓effect of anti-HTN clonidine, methyl-DOPA and guanethidine

Term
Despiramine
Definition

TCA (secondary amine);

Inhibits reuptake of NE and 5-HT at presynaptic terminals = potentiation;

Blocks mAch - no 5-HT effect, little Histamine effects;

Low sedation*;

High lipid solubility, low thereputic index:

 

Tx: depression, anxiety (OCD), ADHD;

 

SE: Orthostatic hypoT, tachycardia, confusion, anticholinergics, worsen narrow-angle glaucoma and CHF, acidosis, delerium, seizures (lowers seizure threshold);

 

CI: Additive CNS depression (EtOH, hypnotics)

Term
Bupropion
Definition

Wellbutrin

Atypical antidepressant;

2nd Generation No sedation No anticholinergic fx;

MOA uncertain, blocks NE reuptake (↑ NE), weak blocker of DAT, SERT, NET;

Oral - divided doses or slow release formulation;

Take in the morning;

 

Tx: Depression and used as a non-nicotine smoking cessation aid*;

 

SE: Anxiety, HA, restlessness, seizures (No sexual side effects*);

Term
Mirtazepine
Definition

Atypical antidepressant - 3rd generation;

Presynaptic α-2 receptor antagonist [unique] causing ↑ release of 5-HT and NE; NOT an MDR-1 substrate;

Antagonizes 5-HT2 and 5-HT3 receptors, anti-histamine actons = Strong sedation;

 

Tx: Depression (in little old ladies who don't eat enough or sleep well);

 

SE: Sedation, weight gain;

Term
Nefazodone
Definition

Antidepressant;

Potent anticholinergic, 5-HT reuptake inhibitor;

No NE effect;

 

INHIIBITS CYP3A4;

 

Tx: Depression w/ sleep disturbance and/or anxiety;

 

DC'ed in ost countries in 2003 dt severe hepatotoxicity (some generics still availible)

Term
Citalopram
Definition

SSRI - inhibits SERT to potentiate serotonin action;

CNS stimulation, euphoria;

Long t1/2 = 2-3 days;

High therapeutic index;

 

Tx: MDD, panic disorder, OCD, ADHD:

 

SE: Nausea, reduced libido/anorgasmia, Serotonin withdrawl syndrome (taper off);

Has the LEAST side effects of SSRIs;

 

CI: MAOI (within 2 weeks of SSRIs), amphetamines, ecstasy, LSD, L-tryptophan;

Serotonin Syndrome (hyperthermia, hyperreflexia, tremor, seizures, CV collapse, coma, death);

Term
Fluoxetine
Definition

Prozac;

SSRI - inhibits SERT to potentiate serotonin action;

CNS stimulation, euphoria;

Long t1/2 = 1 week*;

High therapeutic index;

 

Tx: MDD, panic disorder, OCD, ADHD:

 

SE: Nausea, reduced libido/anorgasmia, Serotonin withdrawl syndrome (taper off);

 

CI: MAOI (within 2 weeks of SSRIs), amphetamines, ecstasy, LSD, L-tryptophan;

Serotonin Syndrome (hyperthermia, hyperreflexia, tremor, seizures, CV collapse, coma, death);

 

 MAY ↑ levels of lithium, warfarin and TCAs*

Term
Phenelzine
Definition

MAOI

Irreversibly inhibits oxidative metabolism of monoamines (NE, 5-HT) ↑ vesicle stores/amt released;

 Acute effects:CNS Stimulation, agitation euphoria;

Requires daily dosing due to inactivation;

 

2nd line anti-depressants, also tx - panic disorder, agoraphobia;

 

 SE: Orthostatic hypoT sleep disturbance, agitation;

 

CI: Cheeses (tyramine) EtOH, sympathomimetics (beta agonists) = [Acute HTN],

Meperidine, dextromethorpham, SSRIs [Serotonin Syndrome]

Term
Lithium
Definition

Mood-stabilizer;

Unknown MOA - may block inositol P signal/AC activity;

Rapid absorption, NOT metabolized, renal clearance - t1/2 = 20 hrs;

Narrow thereputic window*;

 

First line tx: Bipolar disorder, also tx manic depressive disorder;

 

 SE: Tremor, ataxia, hyperactivity, aphasia, sedation, edema, hypothyroid, nephrogenic DI, cardiac sick sinus syndrome [bradycardia], acne, folliculitis, ↑ psoriasis;

Teratogen;

 

CI: NSAIDS alter renal elimination

Term
Zolpidem
Definition

Ambien;

BNZ Receptor Agonist (BRA);

Modify the response of GABA receptor to GABA (shift dose response curve L), Req GABA;

Specific for BZ-1 receptor at approved doses;

 

Tx: Insomnia;

 

Pregnancy category C (Okay, but caution, unlike BNZ which are Category X);

Schedule IV;

Term
Zaleplon
Definition

Sonata;

BNZ Receptor Agonist (BRA);

Modify the response of GABA receptor to GABA (shift dose response curve L), Req GABA;

Specific for BZ-1 receptor at approved doses;

 

Tx: Insomnia;

 

Pregnancy category C (Okay, but caution, unlike BNZ which are Category X);

Schedule IV;

 

ETHNIC VARIABILITY - Asians, must ↓ the dose (differences in aldehyde dehydrogenase levels (?))

Term
Enfuvirtide
Definition

HIV Fusion Inhibitor;

Prevents viral entry into host cell by binding gp41 of viral envelope and preventing the comf change req;

Admin SQ, 2X a day;

Met by proteolytic hydrolysis, no CYP rxns and no cross resistance with other drugs;

 

Tx: Experienced HIV pt who are failing HAART;

 

SE: 8x ↑ risk of bacterial pneumonia*

Term
Zidovudine
Definition

Nucleoside Reverse Transcriptase Inhibitor (NRTI);

Nucleoside analog (pyrimidine-T);

Competitive inhibitor of viral RT - Blocks elongation in previously uninfected cells;

Req (+P)X3 for axn;

↓ perinatal HIV transmission;

Met by glucaronidation. Avoid fatty meals (↓ AUC);

 

SE: BM suppression, lactic acidosis with hepatic steatosis (mitochondrial toxicity), lipodystrophy;

Avoid with other drugs that cause myelosuppression;

Term
Didanosine ddI
Definition

Nucleoside Reverse Transcriptase Inh (NRTI);

Nucleoside analog (purine-A,G);

Forms active ddATP - act as competitive inhibitor - blocks elongation in previously uninfected cells;

Req (+P)X3 for axn;

Don't take w/ acidic foods (↓ AUC);

 

SE: Peripheral neuropathy, Pancreatitis, lactic acidosis w hepatic steatosis, lipodystrophy, many drug interaxns

Term
Lamivudine 3TC
Definition

Nucleoside Reverse Transcriptase Inh (NRTI);

Anti-retroviral and Anti-HBV;

Nucleoside analog (pyrimidine-C) acts as competitive inhibitor of viral RT, blocks elongation in previously uninfected cells;

Req (+P)X3 for axn;

Longest NRTI t1/2;

 

SE: lactic acidosis with hepatic steatosis, lipodystrophy

Term
Saquinavir
Definition

Protease inhibitor - Anti-retroviral;

Most effective ART* - competitive, reversible, inhibitor of viral aspartyl proteases (binds protease active site), esp in monocytes/macs - blocks viral maturation;

CYP3A4 Inhibitor - but least in class;

600% ↑ AUC if taken w/ meals;

 

SE: Hyperlipidemia, DM, lipodystrophy, ↑ liver enzymes, ↑ bleeding in hemophliacs;

Many drug-drug interactions dt CYP inhibition;

Term
Ritonavir
Definition

Protease inhibitor - Anti-retroviral;

Most effective ART* - competitive, reversible, inhibitor of viral aspartyl proteases (binds protease active site), esp in monocytes/macs - blocks viral maturation;

CYP3A4 Inhibitor - most potent in class;

 

 SE: Hepatotoxic, hyperlipid, DM, lipodystrophy, ↑ liver enzymes, ↑ bleeding in hemophliacs;

Lots of Drug-Drug interactions dt CYP inhibition;

Term
Acyclovir
Definition

Anti-Herpes Drug - Nucleoside (Purine) analog;

Inhibits viral DNA polymerase by direct binding and by causing chain termination;

Req (+P) by VIRAL thymidine kinase (virus activates drug to it's toxic form);

 

Tx: HSV (simplex, fevere blisters, genital infx, encephalitis), VZV, CMV (esp in BM transplant pt); 

 

SE: HA, nausea, diarrhea, renal (Crystalline nephropathy + adjust dose in failure), CNS (tremors, delirium, seizures);

Term
Valacyclovir
Definition

Anti-Herpes Drug - Nucleoside (Purine) analog;

Acyclovir prodrug;

Inhibits viral DNA polymerase by direct binding and by causing chain termination;

Req (+P) by VIRAL thymidine kinase (virus activates drug to it's toxic form);

 

Tx: HSV (simplex, fevere blisters, genital infx, encephalitis), VZV, CMV (esp in BM transplant pt); 

 

SE: HA, nausea, diarrhea, renal (Crystalline nephropathy + adjust dose in failure), CNS (tremors, delirium, seizures);

Term
Famciclovir
Definition

Anti-Herpes - Nucleoside analog;

Inhibits viral DNA polymerase by competitive inhibition only - No chain termination;

Penciclovir prodrug - guanine analog;

Req (+P) by VIRAL thymidine kinase;

 

Tx: HSV, VZV, CMV, also HBV;

 

SE: Well tolorated (HA/N/D);

Term
Ganciclovir
Definition

Anti-Herpes Drug - Nucleoside (Purine) analog;

100x more potent than Acyclovir;

Inhibits viral DNA polymerase by direct binding and by causing chain termination;

Req (+P) by VIRAL thymidine kinase (virus activates drug to it's toxic form);

 

 Tx: DOC tx CMV/CMV Retinitis;

 

SE: Myelosuppression, Teratogenic, HA, N/D;

Term
Cidofovir
Definition

Anti-Herpes - Cytidine NucleoTIDE analog;

Does Not require (+P) by viral TK;

 

Tx: HSV/VZV (esp in Acyclovir resistant strains), CMV Retinitis (IV admin can delay the progression of CMV retinitis in HIV pts);

 

SE: Nephrotoxic, neutropenia, carcinogenic, ocular hypotony*, potential carcinogen*

Term
Foscarnet
Definition

Inorganic Pi analog - Non-Nucleoside Anti-Herpes agent;

Inhibits HSV DNA pol by binding to the Pi binding site and preventing cleavage and Inhibits HIV RT;

No (+P) required for activation;

 

Tx: Nucleoside resistant cases (HSV, VZV, CMV), CMV retinitis, HIV;

 

SE: Nephrotoxic*, N/V, anemia, fatigue

Term
Ribavirin
Definition

Anti-hepatitis C - nucleoside analog (G);

Interferes with GTP synthesis - competitive inhibitor of GTP 5' capping of viral mRNA;

Concentrates in RBCs;

Oral or aerosol admin;

 

Tx: HCV, RSV*;

 

SE: Dose-dep hemolytic anemia*, teratogenic (Cat X), BM suppression;

Aerosolized form well tolorated with mild irritation and possible pulm fxn decrease.

Term
Amantadine
Definition

Anti-Parkinsonism, Anti-flu A - Uncoating inhibitor;

Blocks HA glycoprotein maturation - blocks binding to M2 ion channel, No internal acidification;

Works on Flu-A ONLY;

Enhances DA release;

"Good alternative to flu vaccine" in IC and elderly;

 

Resistance: via single aa mutation at the transmembrane region of M2;

 

SE: Restless, depression, psychosis, hallucinations, confusion;

CI: seizures, heart failure

Term
Zanamivir
Definition

Anti-flu A and B - Viral Release Inhibitor;

Inhibits viral neuraminidase - no cleavage of sialic acid - destroys receptors recognized by viral Hemagglutanin (HA) - no detachment from host cell - promotes viral aggreagation/↓ viral spread;

Admin via inhalation (low PO bioavail);

 

Tx: Flu-A(2nd line) and B;

 

Resistance via HA/neuraminidase mutations;

Term
Chloropromazine
Definition

Typical Anti-Psychotic;

Inhibits D2 receptor (potency relates to D2 blocking strength) - effective for positive symptoms;

Aliphatic side chain - low potency (↓ risk of EPS, ↑ risk of anti-muscarinic effects);

 

Tx: Huntington's chorea (DA antagonism);

 

SE: Neuroleptic Malignant Syndrome (risk with all antipsychotics but greater with Chlorpro and Haldol)

 

SE: Corneal deposits, ↑ PRL (severe), ↓ insulin, Jaundice, Anti-diuretic effects*, orthstatic hypoT*, skin rxns, EPS, lowers seizure threshold*;

Term
Thiothixene
Definition

Typical Anti-Psychotic;

Inhibits D2 receptor (potency relates to D2 blocking strength) - effective for positive symptoms;

Piperdine ring - ↓ incidence of EPS*;

 

SE: ↑ PRL, highly anti-muscarinic;

Term
Haloperidol
Definition

Typical Anti-Psychotic;

Inhibits D2 receptor (potency relates to D2 blocking strength) - effective for positive symptoms;

Aliphatic side chain - High* potency;

Availible in Depot formation;

 

Tx: Huntington's chorea (DA antagonism), psychosis;

 

SE: EPS (lots dt strong D2 blocking, though less antimuscarinic effects), ↑ PRL, lowers seizure threshold*, Neuroleptic malignant syndrome*

Term
Clozapine
Definition

Atypical Anti-Psychotic;

D2 (lower affinity and 5-HT2 (high affinity) antagonism;

↑e fficacy for Negative symptoms (as well as positives); Limited EPS;

 

SE: Blood dyscrasias (esp leukopenia), ↑ risk of DM typeII, Weight Gain*;

Term
Risperidone
Definition

Atypical Anti-Psychotic;

D2 (low) and 5-HT2 (high affinity) antagonism;

↑ efficacy for Negative symptoms (as well as positives);

 

Tx: Psychosis in children and teens;

 

Limited EPS;

SE: ↑ PRL, ↑ risk of DM typeII, Moderate incidince of METABOLIC SYNDROME;

Term
Olanzapine
Definition

Atypical Anti-Psychotic;

D2 (less) and 5-HT2 (high affinity) antagonism;

↑ efficacy for Negative symptoms (as well as positives);

 

SE: Weight Gain, METABOLIC SYNDROME (highest incidence*), ↑ risk of DM type II;

Term
Quetiapine
Definition

Atypical Anti-Psychotic;

D2 (low) and 5-HT2 (high affinity) antagonism;

↑ efficacy for Negative symptoms (as well as positives); No effect on PRL levels*;

 

SE: Moderate incidence of METABOLIC SYNDROME, ↑ risk of DM type II;

Term
Ziprasidone
Definition

Atypical Anti-Psychotic;

D2 (low) and 5-HT2A,1A,2C (high affinity) antagonism;

↑ efficacy for Negative symptoms (as well as positives); Limited EPS;

 

SE: ↑ risk of DM type II, low incidence of metabolic syndrome;

Term
Aripiprazole
Definition

Atypical Anti-Psychotic;

D2 partial agonist (blocks full agonist binding), 5-HT2 antagonist, and 5-HT1A partial agonist;

↑ efficacy for Negative symptoms (as well as positives);

No effect on PRL levels;

 

SE: Lower incidence of SE dt MoA, ↑ risk of DM type II, low incidence of metabolic syndrome;

Term
CNS effects of Anti-Psychotics (6 sites)
Definition

Cortex - ↓ seizure threshold;

Basal ganglia - ↑ DA metabolism, ↑ Ach turnover;

Limbic - main site of anti-psychotic efx;

Hypothalamus - ↑ PRL;

Brainstem - ↓ reflexes;

CTZ - protect against N/V*

Term
Endocrine effects of Anti-Psychotics
Definition

Atypicals ↑ DM risk;

(Chlorpromazine additionally impairs glucose tolorance and increases insulin release);

Term
Cardiovascular effects of Anti-Psychotics
Definition

Direct and indirect effects;

Orthostatic hypotension - esp chlorpromazine and throazidine*

Term
EPS of of Anti-Psychotics (6)
Definition

Acute dystonia (muscle spasms);

Akathesia (ants in the pants);

Parkinsonian syndrome;

Neuroleptic Malignant Syndrome (high morality, fever, parkinsonis, tremor, ↑Crkinase, Myoglobinemia);

Perioral tremor (rabbit syndrome);

Tardive dyskinesia (stereotyped, tic-like movements)

Term
Anti-cholinergic effects of Anti-Psychotics
Definition

Dry mouth;

Blurred vision; Constipation;

Nasal congestion;

Orthostatic hypoT

Term
L-DOPA
Definition

Parkinsonism Drug;

Crosses BBB and is conv to DA by endogenous L-AAD @ CNS and in periphery (↑ dose req'd in monotherapy);

Oral admin before meals: ↓ competition @ transporters;

 

Tx: First line for PD but can only use 3-5 years;

 

SE (mostly with monotherapy): anorexia/GI upset, orthostatic hypoT, arrhythmias (Afib), tachycardia;

 

Interactions: Vit B6 (which ↑ L-DOPA metabolism), MAOIs (HTN Crisis);

CI: Glaucoma, psychosis, PUD, CV dz, melanomas (?)

Term
L-DOPA/carbidopa
Definition

Parkinsonism Tx;

L-DOPA fxn PLUS... Peripheral inhibitor of L-AAD (the enzyme that converts L-DOPA to DOPA - ↓ dose of L-DOPA req for therapy;

Fluctuating responses;

 

SE: depression, anxiety, delusions, chorea, tics;

 

Interactions: Vit B6 (↑ metab of L-DOPA), MAOIs (HTNsive crisis);

CI: Glaucoma, psychosis, PUD, CV dz, melanoma (?)

Term
Bromocriptine
Definition

Parkinsonism Drug - DA receptor agonist;

D2 agonist, D1 partial agonist;

Activation of D2 = ↓ activation of indirect basal ganglia pathways; 

 

Tx: EARLY Parkinson's dz (prefered, can be combo with L-DOPA in more advanced dz);

 

Selectivity reduces adverse SE/interactions;

Term
Pergolide
Definition

Parkinsonism Tx - Cheap*;

D1 and D2 receptor agonist;

↑ effectiveness over bromocriptine;

Activates/agonizes D2 - activation of indirect basal ganglia pathways (allows prevention of unwanted mvmt);

 

Tx: Early PD, prolactinomas (inhibiton of PRL release);

Term
Pramipexole
Definition

Parkinsonism Drug - DA receptor agonist;

Activates D2 only - ↓ activation of indirect basal ganglia pathways;

D2 selective agonist, may also act as a free radical scavenger;

 

Tx: EARLY Parkinson's dz

Term
Entacapone
Definition

Parkinsonism Tx - COMT inhibitor;

Prolongs the axn of L-DOPA and ↓ it's transport-competitor in GI/BBB 3OMD;

PERIPHERAL AXN;

 

Preferred due to lower SE than Tolcapone (which is not selective for the periphery);

Term
Benztropine
Definition

Parkinsonism Drug - Anti-muscarinic;

Alters DA/Ach balance by blocking Ach-stimulation of striatum;

 

Tx: early Park or used as an adjunct to L-DOPA;

 

SE: drowsiness, inattention, delusions, hallucinations, typical ANS anti-Ach axns

Term
Diphenhydramine
Definition

Parkinsonism Drug - Anti-histamine/anti-muscarinic;

Alters DA/Ach balance by blocking Ach-stimulation of striatum;

 

Tx: early Park or used as an adjunct to L-DOPA;

 

SE: drowsiness, inattention, delusions, hallucinations, typical ANS anti-Ach axns

Term
Donepezil
Definition

Alzheimer's Dz Tx;

Reversible Ach-esterase Inhibitor;

↑ lvls of Ach;

Long t1/2 - 70hrs;

 

Tx: Advanced AD

 

SE: GI, insomnia (Wild Dreams), bradycardia

Term
Galantamine
Definition

Alzheimer's Dz Tx;

Reversible Ach-esterase Inhibitor;

↑ lvls of Ach;

Shorter half life, more renal handling;

 

SE: GI, insomnia, bradycardia

Term
Riluzole
Definition

ALS tx;

↓ Glutamate (excitatory NT) release by (1) stablizing the inactive state in Na-channel, (2) blocking V-gated, activated Ca-channel, Also (3) blocks NMDA channel;

Met by CYP1A2;

High protein binding;

 

Reduces excitotoxicity and can prolong life by 2 months in ALS pts;

 

SE: fatigue, sedation, liver dz

Term
Natalizumab
Definition

MS tx - Anti-inflammatory;

Monoclonal Ab that restores BBB - ↓ immune response in the CNS of 67% of MS pts;

More effective than interferon;

 

Tx: MS and also Crohn's;

 

SE: PML!* (progressive multifocal leukoencephalopathy)

Term
Phenytoin
Definition

Anti-Epilepsy Drug - Hydantoin;

Stabilizes inactive state of Na channels (some inh of Ca2+ channels);

Met by CYP2C4, induces 2C and 3A*;

Zero Order Kinetics*;

Competes w/ warfarin, OCT, carbamazepine for protein binding sites;


Tx: 2nd line drug only (Partial/simple/complex, Tonic-clonic, or Status epilepticus);

 

SE: [narrow TI] nystagmus, ataxia, arrhythmias, coarsened face, hirsutism, gingival hyperplasia, peripheral neuropathy*, bone disruption, teratogenic*

 

Interactions: Competition with Valproate and Warfarin for protein binding, CYP induction ↓ [Carbamazepine] and of OCPs*

Term
Phenobarbital
Definition

Anti-epilepsy Drug - barbiturate;

Prolongs duration of opening of GABA receptor Cl- channels. Blocks AMPA receptors;

Induce CYP2B6 and UGT;

 

Tx: Not 1st/2nd line AED dt sedation;

 

SE: Sedation*, lethargy, nystagmus, rash, megaloblastic anemia, ↓ vitD

Term
Carbamazepine
Definition

Anti-epilepsy Drug and Mood-stabilizer;

Delays recovery of inactive state Na channels;

Met/activated by CYP2C9,3A4 to active 10,11-epoxide;

Induces CYP1A2, 2B6, 2C19, UGT;

 

Tx: DOC for simple/complex partial seizures and for generalized tonic clonic seizures, also tx bipolar* disorder, and trigeminal neuralgia*;

Tx depression typically assoc w/ Huntington's*;

 

SE: Blood dyscrasias (leukopenia), diplopia, ataxia, mild GI upset.

Term
Ethosuximide
Definition

Anti-epilepsy Drug;

Inhibits the low threshold T-type Ca current in thalamic neurons - prevents 3Hz spike/waves;

↑ AUC when given w/ valproic acid*;

Met by hydroxylation;

 

Tx: DOC for absence seizures;

 

SE: [tolerance] euphoria, hiccups*, fatigue

Term
Valproic acid
Definition

Anti-epileptic Drug;

Stabalizes inactive Na channels, ↑ Ca current, stimulates GABA synthesis and inhibits degradation;

Met by UGT via beta-ox - also inhibits it;

Inhibits CYP2C9;

 

Tx: DoC for Atypical Absence, myoclonic, and atonic eizures, also tx absence, TC and partial as 2nd line;

 

↑ [plasma] phenobarbital, phenytoin, carbamazepine;

 

SE: heartburn, liver toxicity, teratogenic*;

Term
Clonazepam
Definition

Anti-epilepsy Drug - BNZ;

↑ opening of GABA Cl channel;

Can be given rectally or IV;

 

Tx: refractory myoclonic, atonic, absence;

 

SE: sedation, lethargy

Term
Diazepam
Definition

Anti-epilepsy Drug- BNZ;

↑ probability of opening of GABA Cl channel;

IV or rectal admin;

 

Tx: DOC status epilepticus;

 

SE: sedation, lethargy

Term
Lorazepam
Definition

Anti-epilepsy Drug - BNZ;

↑ probability opening of GABA Cl channel;

Long acting*, can admin rectally;

 

Tx: 2nd line for status epilepticus;

 

SE: sedation, lethargy

Term
Zonisamide
Definition

Anti-epileptic Drug;

Inhibits Na channels, may also reduce T-type Ca channel current;

 

Tx: adjunct for parital seizures, infantile spasm, myoclonic, generalized and absence;

 

Met by CYP3A4 (use with phenobarbital, phenytoin, or carbamazepine will accelerate breadown of this drug);

Term
Baclofen
Definition

Muscle Relaxant;

GABA(B) agonist - inhibitory and hyperpolarizing. Inhibits substance P;

Admin oral or intrathecal;

Don't d/c abruptly - rebound neural hyperactivity;

 

Tx: Spasticity, MS, muscle spasm, spinal cord trauma;

 

SE: Sedation,

Additive Effects: CNS depression, hypoT, and hypoglycemic (watch with antidiabetic agents)

Term
Tizanidine
Definition

Muscle Relaxant;

Pre-synaptic alpha2 agonist - ↓ axn of spinal motor neurons;

Admin oral - high first pass met.;

 

Tx: spasticity, MS;

 

SE: SEDATION, hepatotox, anticholinergics, hypoT;

Additive Effects:CNS depressants, Hypotensive agents;

 

CI: with other drugs acting on alpha2;

Term
Dantrolene
Definition

Muscle Relaxant;

Blocks Ryanodine receptor on the SR of muscle cells- confine Ca in the SR - ↓ sk muscle response to stim;

Admin oral or IV;

Hepatic met (perform liver fxn tests);

 

Tx: Spasticity, MS, malignant hyperthermia, neuroleptic malignant syndrome;

 

SE: phlebitis, Heptotoxic w/ estrogens*, CNS depression, floppy baby syndrome (crosses the placenta);

Interactions: CNS depressants, CV collapse with CCBs, hepatic tox with estrogens;

Term
Carisoprodol
Definition

Muscle Relaxant;

General CNS/SC depression to sedate and ↓ pain, no direct efx on conduction;

Met by CYP2C19*;

 

Tx: Muscle spasms;

 

SE: sedation, insomnia, vertigo, ataxia, vision loss, mydriasis, orthostatic hypoT;

Additive Effects: CNS depressants, CYP inhib/inducers, Anticholinergics*

Term
Pregabalin
Definition

Muscle Relaxant-ish;

GABA drug, binds to the alpha-2-delta component of GABA-R to ↓ neuronal Ca channel currents;

↓ neuropathic pain and anxiety;

 

Tx: Fibromyalgia (muscle/joint pain);

 

SE: Sedation, blurred vision, weight gain*, swelling of the hands and feet*, xerostomia;

Additive CNS depression

Term
Penicillin V
Definition

Anti-Microbial -cell wall synth-Narrow Spec - B-lactam;

The Oral "Natural Pen";

Blocks cell wall-synth enzymes;

Oral admin, Glomerular filtration, secretion;

 

Tx: G+ cocci and bacilli (staph, strep), some G- cocci, GC, spirochetes (T. pallidum); 

 

SE: Hypersensitivity* (>2d = delayed, acute =more severe), N/V/D, rash, neurotoxic

Term
Methicillin
Definition

Anti-Microbial - cell wall synthesis;

Penicillinase Resistant B-lactam;

Blocks cell wall-synth enzymes;

Parenteral admin, Glomerular filtration, secretion;

 

SE: rash, neurotoxic;

 

No longer on the market, was the original Penicillinase resistant beta lactam abx;

Term
Nafcillin
Definition

Anti-Microbial - cell wall synthesis;

Penicillinase Resistant B-lactam - "Anti-staph";

Blocks the action of transpeptidases (PBPs) in synthesizing bacterial cell walls (cross linking PGs);

IM or IV admin;

Glomerular filtration, secretion - Highly protein bound;

 

Tx: B-lactamase-producing staph;

 

SE: decreases electrolytes*, rash, neurotoxic

Term
Ampicillin
Definition

Anti-Microbial - cell wall synthesis;

"Extended spectrum" beta lactam;

Blocks the action of transpeptidases (PBPs) in synthesizing bacterial cell walls (cross linking PGs); Glomerular filtration, secretion;

Req supplement after dialysis*;

 

Tx: [G+ and G- rods/bacilli] H. flu, E. coli;

Resistance: B-lactamase (G-);

 

SE: Delayed Rash*, Diarrhea, Pseudomembranous Colitis*, neurotoxic*

Term
Amoxicillin
Definition

Anti-Microbial - cell wall synthesis;

B-lactam - "Extended spectrum";

Blocks the action of transpeptidases (PBPs) in synthesizing bacterial cell walls (cross linking PGs);

Oral admin;

Glomerular filtration, secretion - Req supplement after dialysis*;

Tx: [G+ and G- rods/bacilli] H. flu, E. coli;

 

Resistance: B-lactamase* (G-);

SE: Delayed Rash*, Pseudomembranous colitis*, neurotoxic*

Term
Cefazolin
Definition

Anti-Microbial - cell wall synthesis -1st Gen Ceph;

Renal tubular secretion - ↑ [plasma] w/ probenecid;

 

Tx: G+ cocci, many G- bacilli (think ampicillin);

 

SE: hypersensitivity, phlebitis, IM pain, nephrotoxic, rare superinfections;

Term
Cefoxitin
Definition

Anti-Microbial - cell wall synthesis - 2nd Gen Ceph;

Renal tubular secretion - ↑ [plasma] w/ probenecid;

 

Tx: Less G+, more G- (H. flu, B. fragilis);

 

SE: hypersensitivity, phlebitis, IM pain, nephrotoxic, rare superinfections;

Term
Cefotaxime
Definition

Anti-Microbial - cell wall synthesis - 3rd Gen Ceph;

Renal tubular secretion - ↑ [plasma] w/ probenecid; Highly metabolized PENETRATES CSF;

 

Tx: [severe] enteric G-'s, B. fragilis, H. flu, Pseudo.;

 

SE: Enterobacter Superinfections, hypersensitivity, phlebitis, IM pain, nephrotoxic;

Term
Ceftriaxone
Definition

Anti-Microbial - cell wall synthesis - 3rd Gen Ceph;

Renal tubular secretion - ↑ [plasma] w/ probenecid; Longest t1/2;

Does not require supplementation in dialysis;

  PENETRATES CSF;

 

Tx: [severe] enteric G-'s (B. fragilis, H. flu), Pseudomonas;

 

SE: ENTEROBACTER SUPERINFECTIONS, hypersensitivity, phlebitis, IM pain, nephrotoxic;

Term
Cefepime
Definition

Anti-Microbial - cell wall synthesis - 4th Gen Ceph;

Renal tubular secretion - ↑ [plasma] w/ probenecid;

 

BROAD SPECTRUM - incl G+ B-lactamase producers;

Tx: Pseudomonas, Klebsiella, E.coli;

 

SE: hypersensitivity, phlebitis, IM pain, nephrotoxic, rare superinfections;

Term
Vancomycin
Definition

Anti-Microbial - cell wall synthesis - glycoprotein;

D-Ala-D-Ala binding;

BacteiroCidal effects w/ narrow spectrum;

Oral admin for mild GI infx, parenteral for systemic; Enters inflamm meninginges/CSF;

Resistance: Plasmid-mediated alteration in binding site;

 

Tx: DOC for MRSA, strep, enterococci,

2nd line for C. diff;

 

SE: Synergistic nephtrotox, ototoxicity (w/ loop diuretics), Red Man Syndrome*, ↓ [plasma] in multiple myeloma, GI, phlebitis

Term
Linezolid
Definition

Anti-Microbial - Inhibits 50S ribosome;

Oral admin (100% bioavail), also parenteral;

Requ supplementation after dialysis;

Resistance: Pt mutations of 23s ribosome binding site;

 

Tx: VRE (E. faecium and faecalis)[static], MRSA [static], Strep [cidal] - reserve for serious infx;

 

SE: N/V, diarrhea, pseudomembranous colitis*, inhibits MAO non-selectively (Caution in co-admin w pseudoephedrine, SSRIs, tyramine etc...);

 

CI: PKU

Term
Doxycycline
Definition

Anti-Microbial - 30S ribosome - Tetracycline;

Passive diffusion thru porin channels into cell - reversible 30S ribosome binding;

Abs (best in acidic stomach stomach) inhibited by multivalent cations;

Crosses placenta, enters milk;

Resisitance: slow, via ↓ influx & ↑ efflux - Resistance to one Tetracycline = Resistance to all*;

 

Tx: [BROAD] - Mycoplasma*, Chlamydia, Rickettsae*, Spirochetes, protozoa, lyme, acne, peridontal dz;

 

SE: Hepatotoxic*, Photosensitivity, Tooth discoloration, (LESS) GI, avitaminosis, vertigo, ↓ bone growth, Superinfections are common;

 

CI: Children <8 yrs, Pregnancy, w dairy products, antacids or supplements (divalent cations);

Term
Erythromycin
Definition

Anti-Microbial - 50S ribosome (irreversibly) - Macrolide;

STATIC axn - Narrow Spectrum;

Oral admin - Short t1/2;

Resistance: [cross-res w/ Clinda*] - rapid - plasmid-mediated ↓ influx, target altered, and drug hydrolysis;

 

Tx: [G+] DOC for Legionaire's Dz*, Pneumociocci, GAS, Listeria, Corynebacterium, Lyme Dz;

 

SE: Inhibits CYP450, Cholestatic Hepatitis*, can prolong QT interval

Term
Clarithromycin
Definition

Anti-Microbial - 50S ribosome (irreversibly) - Macrolide;

STATIC axn - Narrow Spectrum;

Oral admin (↓ GI fx, ↑ acid stability);

Resistance: [cross-res w/ Clinda*] - rapid - plasmid-mediated ↓ influx, target altered, and drug hydrolysis;

 

 Tx: [G+] Erythro's plus MAC'S DOC, H.flu, strep, H.pylori, Ct, Moraxella;

 

SE: Inhibits CYP450, Cholestatic Hepatitis*

Term
Azithromycin
Definition

 Anti-Microbial - 50S ribosome (irreversibly)- Macrolide;

STATIC axn - Narrow Spectrum;

Oral admin (Long t1/2);

Resistance: [cross-res w/ Clinda*] - rapid - plasmid-mediated ↓ influx, target altered, and drug hydrolysis;

 

 Tx: [G+] DOC for Legionaire's/MAC/Campylobacter*, H.flu, strep, H.pylori, Ct, Lyme Dz;

 

SE: Inhibits CYP450, Cholestatic Hepatitis*

Term
Clindamycin
Definition

Anti-Microbial - 50S ribosome - Ketolide;

Sim.to macrolides - irreversible 50S ribosome inhibition;

Penetrates bone, not CSF*;

Acid stable, slow resistance;

 

Tx: Anerobes (B. Fragils), G+, toxo, P. jiroveci;

 

SE: Pseudomembranous Colitis**, GI, rash

Term
Gentamicin
Definition

Anti-Microbial - 30s ribosome (irrev. dmg) - AMG;

E-dependant (ETC and O2 req) diffusion through outer porin channel;

Conc-dependent killing - use bolus dose (parenteral);

Enters inflamm meninges/CSF, renal cortex, inner ear;

Limited cross-res within class;

 

Tx: [severe aerobic G-] enterococcus endocarditis, MRSA, staph epi;

 

SE: Ototoxicity (irrev.), Nephrotox (PCT, renal cortex), neuromuscluar blockade, teratogen*

Term
Tobramycin
Definition

Anti-Microbial - 30s ribosome (irrev. dmg) - AMG;

E-dependant (ETC and O2 req) diffusion through outer porin channel;

Conc-dependent killing - use bolus dose (parenteral);

Enters inflamm meninges/CSF, renal cortex, inner ear;

Limited cross-res within class;

 

Tx: [severe aerobic G-] enterococcus endocarditis, MRSA, staph epi;

 

SE: Ototoxicity (irrev.), Nephrotox (PCT, renal cortex), neuromuscluar blockade, teratogen*

Term
Amikacin
Definition

Anti-Microbial - 30s ribosome (irrev. dmg) - AMG;

E-dependant (ETC and O2 req) diffusion through outer porin channel;

Conc-dependent killing - use bolus dose (parenteral);

Enters inflamm meninges/CSF, renal cortex, inner ear;

Limited cross-res within class;

 

Tx: [severe aerobic G-] enterococcus endocarditis, MRSA, staph epi;

 

SE: Ototoxicity (irrev.), Nephrotox (PCT, renal cortex), neuromuscluar blockade, teratogen*

Term
Trimethoprim
Definition

Anti-Microbial - Folic acid metabolism;

Selective inhibition of bacterial DHFR - prevents reduction of di- to tetra-hydrofolate (blocks de novo thymine synthesis and therefore blocks DNA synthesis);

IV or Oral

(Alone, oral admin can be used as prophy or tx for uncomplicated UTI - MC combined as TMP-SMX)

Penetrates CSF, prostate, vaginal fluid*;

Resistance: altered DHFR affinity;

SE: Disulfram-like rxn, Thrombocytopenia due to folate depletion;
Relatively CI in pregnancy

Term
Ciprofloxacin
Definition

Anti-Microbial - DNA gyrase - 2nd gen fluoroquinolone; 

↓ abs w/ multivalent cations in antacids;

Inhibits CYP450;

Resistance: ↓ porin proteins, efflux, or binding site axn;

 

Tx: UTI/GIT infx, G- systemic axn vs aerobes (HLP) and enterics (E.coli, Kleb, Moraxella), intracellular (accumulates in macs/leukocytes - Chlym, legionella), GC, mycobacterium, best for pseudomonas;

 

SE: GI, dizzy, photosensitivity, seizures*, crystalluria*;

CI: Pregnancy, youth

Term
Levofloxacin
Definition

Anti-Microbial - DNA gyrase - 2nd gen fluoroquinolone; 

↓ abs w/ multivalent cations in antacids;

Inhibits CYP450;

Resistance: ↓ porin proteins, efflux, or binding site axn;

 

Tx: Improved G+ axn, Broad G-, Intracellular bacteria;

 

SE: GI, dizzy, photosensitivity, seizures*, crystalluria*, only 3rd gen fluro that does not cause QT prolongation;

CI: Pregnancy, youth

Term
Amphotericin B
Definition

Polyene Antifungal - cell membrane;

Binds ergosterol, forms pore - allows leakage of K, Mg - FungaCidal efx;

IV admin - high binding to beta-lipoprotein;

Resistance: in Candida;

 

Tx: [deep, systemic fungal infx, ok in pregnant women] Candida, Crypto, Aspergillus, Blasto;

 

SE: Nephrotoxic**, fever, thrombophlebitis, hypersensitivity, shock/hypoT*;

Term
Flucystosine
Definition

Antifungal;

Prodrug-inhibits thymidylate synthase =inhib DNA synth;

Cidal/static dep. on dose and organism;

Oral admin - Virtually always given with AmphB*;

Penetrates the CSF*

↓ dose in renal failure and when given w/ AmpB;

Resistance: ↓ permease, ↓ cytosine deaminase (fail to activate the drug);

 

Tx: [systemic mycoses] Candida meningitis;

 

SE: Hematological tox (can be letha, dose-dep), Colitis

Term
Voriconazole
Definition

Antifungal - cell membrane - Azole;

Inhibits ergosterol synthesis;

Severe CYP450 inhibition;

Resistance: rapid if used alone;

 

Tx: [broad] Invasive Aspergillus, Scedosporium, Fusarium;

 

SE: Visual Disturbances (Color) + Photosensitivity (V for Visual disturbances)*, Hepatotoxic, Teratogenic;

Term
Ketoconazole
Definition

Antifungal - Cell membrane;

Inhibits ergosterol synthesis;

Mild CYP450 inhbitor;

Resistance is rapid if used alone;

 

Tx: [broad] yeasts, dermatophytes, systemic mycoses, adjunct in Cushings (CYP inhibition of cortisol synth);

 

SE: ↓ testosterone and prevent adrenal steroidogenesis** (gynecomastia, reduced libido etc...), Teratogenic

Term
Terbinafine
Definition

Antifungal;

Inhibits squalene epoxidase - inhibits ergosterol synth;

Highly protein bound -Concentrates in keratin -hair/nails;

Oral or Topical admin;

 

Tx: Onychomyosal fungal infxns - nails;

 

SE: HA, GI, Taste Changes*, Cholestatic Hepatitis*

Term
Griseofulvin
Definition

Antifungal;

FungaStatic* - disrupts fungal mitotic spindle;

Conc in keratin precursor cells via active transport;

CYP450 inducer;

 

Tx: Dermatophytes (edermophytan, microsporum, trichophytan);

 

SE: HA, GI, Photosensitivity;

Term
Isoniazid (INH)
Definition

Anti-mycobacterium - Cell Wall;

Blocks mycolic acid synthesis;

Cidal if rapid growth/ static if slow;

Oral admin;

Enters inflamm meninges/CSF, placenta, breastmilk;

↓ efx w/ anatacids, steroids - Met by acetylation;

Resistance is rapid, use in combo;

 

Tx: First Line for TB;

 

SE: Perhiperal Neuropathy, Hepatotoxic, B6 deficiency* (supplement Pyrodoxal Phosphate, PLP)

Term
Rifampin
Definition

Anti-mycobacterium - RNA Pol;

Binds beta subunit of RNApol - Cidal to intra and extracellular mycobacteria;

Oral admin - Enters CSF*;

CYP450 inducer;

↑ lvls if take w/ probenecid;

 

Tx: TB (1st line), MRSA, mengingococcus, anti-leprosy*;

 

SE: Red/orange fluids, GI, fever/chills/aches, hepatotoxic (jaundice)

Term
Ethambutol
Definition

Anti-mycobacterial;

Oral admin - ↓ abs w/ antacids (Al+++);

BacterioStatic;

Enters placenta, breastmilk, inflamed meninges/CSF;

Slow resistance;

 

Tx: First Line TB and MAC;

 

SE: Optic neuritis, hyperuricemia*, allergic rxns

Term
Streptomycin
Definition
Anti-mycobacterium - aminoglycoside;
Targets ribosomes (30S);
IM admin;

Tx: 1st line TB;

SE: Significant toxic profile - see aminoglycosides;
Term
Anise
Definition

Herbal supplement - Natural coumarin derivative;

 

Interaxn w/ Rx anticoagulants

Term
Bitter Orange
Definition

Herbal supplement;

Contains synephrine, an alpha-1 agonist*;

Inhibits CYP3A4;

 

SE: stroke, angina, ischemic colitis

Term
Coenzyme Q10
Definition

Dietary supplement;

Potent antioxidant;

'Tx': Good Evidence: HTN, ischemic heart disease, prevention of statin-induced myopathy;

 

SE: Generally well tolorated but poss warfarin interaxn due to VitK-like structure

Term
Echinacea
Definition

Dietary Supplement;

'Tx' to give an Immune boost - no supporting evidence; Thus antagonizes immunosuppressants;

 

Induces CYP3A4; Inhibits CYP1A2 and intestinal 3A4; Lots of Interactions without clear evidence of effects.

Term
Garlic
Definition

Herbal supplement;

'Tx' (decent evidence): Reduces cholesterol;

 

SE: antiplatelet & prolonged bleeding*

Term
Ginkgo Biloba
Definition

Herbal supplement;

 

'Tx': Prevention of Alzheimers Dz;

 

SE - anti-platelet, Inh CYP1A2 and 2D6

Term
Ginseng
Definition

Herbal supplement;

MAY provide Immune boost, CV benefits, lower LDL, decrease [glucose], boost response to flu vaccine;

 

Thus antagonizes immunosuppressants*;

 

Other SE: prolonged bleeding, inhibits CYP2D6

Term
Red Clover
Definition

Herbal supplement - natural coumarin derivative; Interaxn w/ Rx anticoagulants;

 

Estrogen-like axns - increase risk of cancer of the lining of the uterus/breast cancers (?)

Term
Senna
Definition

Herbal supplement;

'Tx' as a laxative;

 

SE: hepatotoxic and carcinogenic*

Term
St. John's Wort
Definition

Herbal supplement;

 

'Tx': depression (good evidence);

 

Induces CYP3A4, 1A2, 2C9

Term
Zinc
Definition

Mineral supplement;

Key cofactor in enzymes, protein and carb metabolism; 

 

Reduces childhood diarrhea in developing countries helps heal gastric ulcers;

Tx: Sickle cell, acne, ADHD, Down's, herpes, high cholesterol, plaques and gingivitis

Term
Erythropoietin Note! - Epoetin alpha, darbepoetin alpha
Definition

Hematopoietic Growth Factor;

Acts on progenitor cell receptor to increase RBC production (BFU-E and CFU-E);

IV or SC admin;

 

Tx: Anemia assoc w/ AIDS, chemo, preemies, chronic inflamm dz's, renal failure;

 

SE: cardiotoxic, nephrotoxic*

Term
Filgrastim (G-CSF)
Definition

Myeloid Growth Factor;

Stimulates myelopoiesis of granulocytes, etc.;

 

Tx: severe neutropenia;

 

SE: granulocyte spike, bone pain, rash

Term
Pegfilgrastim
Definition

Myeloid Growth Factor;

Stimulates myelopoiesis of granulocytes, etc.;

 

Tx: severe neutropenia (AIDS pt on Zidovudine);

 

SE: granulocyte spike, bone pain, rash

Term
Oprelvekin
Definition

Megakaryocyte Growth Factor;

Recombinant IL-11 which stimulates lymphoid and myeloid growth;

 

Tx: Thrombocytopenia;

 

SE: fatigue, dizzy, dyspnea, arrhhythmia, edema

Term
Iron Ferrous Sulfate
Definition

Mineral Iron;

Oral admin;

 

Tx: DOC for iron deficiency anemia*;

 

SE: heartburn, nausea, GI

Term
Vit B12 (Cyanocobalamin and Hydroxycobalamin)
Definition

Vitamin;

Admin parenteral > oral;

 

Tx: B12 deficiency (megaloblastic - pernicious anemia)

Term
Folic Acid
Definition

Vitamin;

Oral or parenteral admin;

Use before preg thru breasfeeding;

 

Tx: specific deficiency (think prego, chemo, chronic EtOH, upper intestine dz);

 

Counteracts AED's* (Phenobarbital, phenytoin)

Term
Amphetamine
Definition

CNS stimulant;

Indirect dopamine agonist - ↑ BP, wakefulness, alertness, concentration, self-confidence, euphoria, physical performance, wt loss (though tolorance develops to app suppressant effects);

Psychological dependence (abuse liability);

 

Tx: Obesity, narcolepsy, ADHD;

 

SE: arrhythmias, angina, HA, abuse (DA reward), neurotoxic, convulsions, cerebral hemorrhage, schizophrenogenic*

Term
Dex-amphetamine
Definition

CNS stimulant;

Indirect dopamine agonist;

↑ BP, wakefulness, alertness, concentration, self-confidence, euphoria, physical perform, wt loss;

Psychological dependence - abuse potential;

 

Tx: Obesity, narcolepsy, ADHD;

 

SE: arrhythmias, angina, HA, abuse (DA reward), neurotoxic, convulsions, cerebral hemorrhage, schizophrenia.

Term
Methhylphenidate
Definition

CNS stimulant [Concerta] -mild;

Indirect dopamine agonist;

↑ BP, wakefulness, alertness, concentration, self-confidence, euphoria, physical perform, wt loss;

Still has abuse potential;

 

Tx: Narcolepsy, ADHD;

 

SE: arrhythmias, angina, HA, abuse (DA reward), neurotoxic, convulsions, cerebral hemorrhage, schizophrenia*

Term
Atomoxetine
Definition

'Stimulant' (not an effective stimulant);

NE reuptake inhibitor;

 

Tx: ADHD (esp approved to tx adults);

Low abuse potential (consider in abuse prone teens);

 

SE: Anorexia/appetite suppression, insomnia, ↑ HR/BP

Term
Sibutramine
Definition

Stimulant;

DA, NE, serotonin reuptake inhibitor;

 

Tx: Short-term for obesity (Don't exceed<6 mo. use);

 

SE: Serotonin syndrome*, HTN;

 

CI: MAOI, anorexia, HTN, hypersensitivity;

Term
Modafinil
Definition

Stimulant;

Mechanism unknown - No DA effect - No abuse potential;

 

Tx: Narcolepsy;

Induces CYP450*;

 

SE: HA for 1 week

Term
Phentermine
Definition

Stimulant;

Indirect NE and serotonin agonist;

 

Tx: short term for obesity;

Low abuse potential;

 

CI: atherosclerosis, HTN, hyperthyroidism, hypersensitivity to sympathetic amines, CV dz, MAOIs

Term
Heparin (Unfractionated)
Definition

Anticoagulant - Arterial and Venous thrombosis inhibition;

Activates ATIII to inactivate thrombin and factors IX, X, XI, and XII;

Admin SQ or IV;

Rapid Onset, Variable t1/2/binding to plasma proteins; -

Monitor PTT;

Works only for soluble thrombin;

 

SE: HIT (at 5-10 days) dt formation of Heparin-PF4 complexes and LT activation - thrombocytopenia and clotting*;

Term
Enoxaparin
Definition

Low MW Heparin;

Admin SQ;

Small molecule, long t1/2;

↑ anti-Xa axn, ↓ plasma protein binding, ↓ anti PLT axn;

No need to monitor;

 

Tx: DVT prophylaxis;

 

SE: less potential for HIT (at 5-10 days, though still possible)

Term
Hirudin
Definition

Direct Thrombin Inhibitor;

Irreversibly binds active site and exosite 1 of Thrombin;

Acts on soluble and Clot-bound thrombin;

No immune-med thrombocytopenia;

Source - leech saliva;

 

Tx: HIT;

 

SE: (less) hemorrhage;

CI: renal failure

Term
Lepirudin
Definition

Direct Thrombin Inhibitor;

Irreversibly binds active site and exosite 1 of thrombin; Acts on soluble and Clot-bound;

No immune-med thrombocytopenia;

Source - recombinant form of Hirudin;

 

Tx: HIT;

 

SE: (less) hemorrhage;

CI: renal failure

Term
Warfarin
Definition

VitK Antagonist;

Competes w/ Vitamin K  for binding of epoxide reductase - ↓ vit K - Blocks synthesis of factors II, VII, IX, X - ↓ thrombin formation;

Slow onset (36-72 hrs), long duration - monitor PT;

 

Tx: DVT, PE, Afib, Rheumatic heart dz (DOC for first 3);

 

SE: Skin necrosis (protein C def), hemorrhage, transient pro-coagulant (inh Protein C), drug interactions (incl. EtOH);

CI: Liver disease

Term
Aspirin
Definition

Non-selective COX1/2 irreversible Inhibitor - anti-PLT;

Acetylation of enzyme;

COX1 inhibition - no TXA2 - ↓ aggregation. COX2 inhibition - no PGI2 - ↑ aggregation;

 

Tx: CHD; SE - GI bleed, hemorrhagic stroke, asthma;

 

CI: Coumarin, PUD, asprin hypersensitivity (asthma);

Max dose <4g/day

Term
Dipyridamole
Definition

Phosphodiesterase (PDE) Inhibitor - anti-platelet;

↑ cAMP - inhibits aggregation (enhanced prostacyclin-mediated axn) and ↑ adenylate cyclase (↓ adenosine);

Vasodilator;

 

Tx: Not used alone - adjunct of aspirin for anti-platelet, adjunct w/ warfarin for thrombosis prevention in pt with prosthetic valves, used to Induce Coronary Steal*;

 

SE: HA, dizzy, GI, Coronary Steal*

Term
Clopidogrel
Definition
Plavix;

ADP Inhibitor - anti-PLT;
Prodrug* - activated by CYP2C19 (pt on omeprazole and those with genetic lack of CYP2C19 req ↑ dose);

Prevents ADP-mediated externalization of the GPIIb/IIIa receptor - no platelet aggregation! Effective;

Tx: CHD in higher risk pts - unstable angina or NSTEMI with asprin admin first and indefinitely (not recommended for use in stable CHD*), Prophylaxis for MI, stroke (with Asprin), in angioplasty;

SE: Bleeding!;

CI: Recent surgery (must dc 5+ days before undergoing CABG or other surgery);
Term
Eptifibidate
Definition
DirectGPIIb/IIIa Receptor Blocker - Anti-platelet;
Synthetic polypeptide - IV admin;
Prevents aggregation of PLT by preventing binding of fibrinogen or vWF via GPIIb/IIIa block;

Tx: non-Qwave MI, given acutely, prior to cardiac cath or angioplasty to prevent in-stent thrombosis/stenosis;

Acute infusions are typically w Asprin and Heparin prior to/during the procedure - shown to ↓ CHD/MI death.
Term
Abciximab
Definition

GP IIb/IIIa Receptor Blocker - anti-platelet;

Monoclonal Ab that targets the GP IIb/IIIa receptor;

IV admin;

 

Tx: Given before/during cardiac cath and angioplasty;

Helps restore blood flow in failed rescue angioplastys*

Term
Streptokinase
Definition
1st Gen Fibrinolytic/Thrombolytic;
Forms activator complex with plasminogen;
Non-specific activation of circulating and fibrin-bound plasminogen;

Tx: MI, PE, DVT, thrombotic stroke;

SE: (dt non-spec axn & Strep immunogenicity) Systemic Lytic State, intracranial hemorrhage, immune response (hypoT, bronchospasm, angioedema, serum sickness);

CI: Age >75 yrs, recent surgery, HTN, pericarditis (can → hemopericardium), prior use/recent strep infx (one time use deal);
Term
tPA
Definition
(Alteplase) 2nd Gen Thrombolytic;
Recombinant version of a naturally occuring (produced by vascular endothelial cells) serine protease;

Forms tertiary complex* w/ fibrin and plasminogen; Specific action for fibrin and localization to the clot;

IV (front-loaded) infusion - peptide composition requires a continuous IV infusion*;

Tx: MI, PE, or ischemic stroke (if within 3 hrs and there is no evidence of hemorrhage);

Marginally ↑ patency rates/↓ mortaility over 1st gen;
Term
Loperamide
Definition
Opiate Anti-diarrheal;
↓ secretions, ↑ muscle tone (antispasmodic*) including sphincters (↓ urgency @external anal sph), ↓ motility, ↑ GI contact time;

Binds calmodulin;

Tx: Diarrhea;

CI: fever, blood or mucous in stool
Term
Acetaminophen
Definition
Weak Inhibitor of COX-1/2, strong Brain COX3 inhibitor;

Analgesic and antipyretic;
Limited/no effect on platelets;
NOT useful for anti-inflammatory;

Tx: Antipyretic/analgesic for patients taking warfarin or heparin, also prefered in pregnant women/children* (avoid Asprin and NSAIDS in these groups);

SE: Hepatotoxicity*, stroke, MI;

CI: Excessive EtOH, >60y.o.(caution);

Max dose <4g/day
Term
Guaifenesin
Definition
Only FDA-approved OTC Expectorant;

Often combined w/ antihistamines, antitussives;

Tx: Productive cough w/congestion;

SE: (@high doses) N/V dizziness, HA, rash
Term
Dimenhydrinate
Definition

Dramamine;

1st Gen antihistamine;

Sedative, anti-emetic, GI cramps, anticholinergic;

 

Tx: Allergies, hay fever, rhinitis, urticaria, insect bites, motion sickness & vertigo (antiemetic);

 

SE: Disorientation/delirium,  sedation, dystonia, nasal congestion;

 

CI: Asthma and glaucoma

Term
Dextromethorphan
Definition

Antitussive - cough suppression;

Opiate derivative but non-narcotic;

No analgesia;

Met at CYP2D6;

Acts on non-opioid receptors;

 

SE: hallicinogen, dry mouth, tachycardia, disorientation, depersonalization, somnolence

Term
Malathion
Definition

Insectiside - parasympathomimetic;

Irreversible Anticholinesterase;

 

Tx: resistant scabies and pediculosis;

 

Remember: acetylcholinesterase inhibitor (insecticide);

 

SE: systemic ingestion=cholinergic effects

Term
Midazolam
Definition

Benzodiazepine - balanced anesthesia;

↑ activity of GABA receptor/channel;

Death from OD more diff than with barbs;

No analgesia;

Anticonvulsant, anterograde amnesia, balancing sympathomimetic effects, wide safety margin;

 

(Flumazenil = specific BZ antagonist)

Term
Neomycin
Definition

Aminoglycoside Antibiotic;

Topical, Oral, Enema;

 

Give enema to reduce colonic bacteria;

 

Tx: portal HTN, encephalopathy;

 

SE: Ototoxic, nephrotoxic, Teratogenic

Term
Scopolamine
Definition

Anticholinergic;

Sedation and amnesia;

Pre-op ancillary agent for anesthesia;

 

Tx: reflex bradycardia, blockage muscarinic anticholinesterases (NM blocker OD), Drying of secretions;

Blocks pathways from inner ear - Tx motion sickness

Term
Propranolol
Definition

Beta-1 and 2 antagonist;

Direct effect on Na channels, anti-arrythmias;

 

Tx HTN, esp with CHF or prev MI;

 

SE see BB SEs

Term
NPH
Definition

Intermediate acting insulin preparation;

 

Taken twice daily, lower peak and longer duration of action allows morning and evening dosing and prevents nocturnal hypoglycemia.

Term
Argatroban
Definition

Anticoagulant - Direct Throbin Inhibitor;

Reversible binding;

 

Tx: Prophy for HIT for pt prone to it;

 

SE: Bleeding (lower risk dt specific activity)

Term
Somatostatin
Definition

Secreted by the D cells of the pancreas and by the paraventricular hypothalamus;

Inhibits the release of TSH and GH from the pituitary and Insulin and Glucagon from the pancreas* (4);

 

Short t1/2;

 

Tx: Acromegly/Giantism, Glucogonomas, Insulinomas;

Term
Carbergoline
Definition

D2 Receptor agonist;

Higher affinity and longer half life than Pergolide;

 

Tx: Prolactinomas

 

Term
Artesunate
Definition

Anti-Malarial drug;

Used in combination to treat fulpicarium in kids, adults, and pregnant women;

 

NOT AVAILIBLE IN THE US, only availible in the UK on a per pt basis;

 

Always give in combo to avoid resistance development;

Term
Atosiban
Definition

Inhibitor of Oxytocin and ADH release from the posterior pituitary;

IV admin;

 

Tx: Used as a labor suppressant;

 

Study showed no better effects than placebo...but I guess we needed a 249th drug so this one is on the list.

Term
Biscodyl
Definition

Stimulant Laxative (promote evaculation of the colon);

Works directly on the large intestine to promote motility - stimulates enteric nerves to cause colonic mass mvmt;

Also a contact laxative; 

 

↑ fluid and NaCl secretion;

Term
Carbon Monoxide
Definition

A toxic gas (colorless, odorless, tasteless, and initially non-irritating, difficult to detect). Produced in domestic or industrial settings by older motor vehicles and other gasoline-powered tools, heaters, and cooking equipment.

Sx of mild acute poisoning include lightheadedness, confusion, HA, vertigo, flu-like sx. Larger exposures can lead to significant CNS and cardio toxicity and death;

Causes adverse effects in humans by combining with Hb to form carboxy Hb (HbCO) which prevents O2 binding to Hb, ↓ the O2-carrying capacity of the blood = Hypoxia;

Tx: 100% O2 + hyperbaric O2 - which inc removal of CO from Hb.

Term
Cortisol
Definition
Produced in adrenal cortex (10mg/day - lots);
Stimulates gluconeogenesis and glycogenolysis;

Anti-inflammatory, acts by ↓ Phospholipase A2, ↓ cytokines, ↓ histamine;

Periphery - [opposes insulin] ↓ glu use, ↑ proteolysis, lipolysis;
Mostly delayed effects due to actions being nuclear;
90% bound to CBP or albumin;

Converted (kidney, colon, salivary glands) to cortisone - won't bind MC receptors, allowing the aldosterone (present in much lower concentrations) to exert its fx;
Term
Dihydrotestosterone
Definition

More potent testosterone derivative;

Generated from Testosterone via the actions of alpha-5 reductase (5% of testosterone undergoes 5α-reduction to form the more potent androgen);

During embryogenesis DHT has an essential role in the formation of the male ext genitalia, while in the adult DHT acts as the primary androgen in the prostate and in hair follicles*

Congenital 5-alpha-reductase def causes pseudohermaphrodism (DHT is key in development of secondary sex charactaristics);

DHT cannot be converted by aromatase to estradiol*;

DHT is the primary contributing factor in male pattern bladness; 

Also plays a role in BPH and Prostate cancer by enlarging the prostate gland (blockage of 5 alpha reductase used to tx);

Term
Edetate calcium disodium
Definition

aka EDTA;

Is a hexadentate ("six-toothed") ligand and chelating agent (cans equester metal ions such as Ca2+ and Fe3+). After being bound by EDTA, metal ions remain in solution but exhibit diminished reactivity.

 

Tx: Mercury and Lead poisoning;

Term
Famotidine
Definition
H2 antagonist - PUD, GERD;
Competitively inhibits H2 receptors in stomach, ↓ gastric acid secretion;

Use <2 weeks, not in kids <12 y.o.;

Most potent and longest 1/2 life in class*;

SE: HA, dizzy, GI
Term
Fexofenadine
Definition
2nd Gen Anti-histamine
Term
Fomepizole
Definition

Antidote in methanol or ethylene glycol poisoning - used alone or in combination with hemodialysis;

 

Competitive inhibitor of alcohol dehydrogenase the enzyme that catalyzes the initial steps in the metabolism of ethylene glycol and methanol to their toxic metabolites.

Ethylene glycol to oxylate and glycolate (metabolic acidosis and renal damage) and Methanol to formaldahyde and formic acid (metabolic acidosis and visual disturbances);

 

IV admin;

Term
Gabapentin
Definition

Anti-epileptic Drug;

Strucutral analog of GABA + may ↑ GABA release;

 

Tx: Adjunct for partial seizres, neuropathic pain tx, and neuralgia;

 

SE: are mild, somnolence, dizziness, ataxia, generally resolve;

Term
Ganirelix
Definition

Injectible GnRH;

Daily SQ admin;

Blocks the action of GnRH upon the pituitary = suppression of production/axn of FSH and LH;

 

Used to control ovulation (in assistive reproduction)

Term
Hydrocodone
Definition

Semi-synthetic opioid (stronger than codine but much less powerful than morphine);

Narcotic analgesic and antitussive agent;

Oral admin;

 

Tx: Pain and cough;

 

SE: N/V, dizziness, drowsiness, respiratory depression;

 

CI with alcohol, cocaine, amphetamines, BNZ, barbituates;

 

Term
Invermectin
Definition

Broad spectrum antiparacitic - anti-helminth/arthropod;

↑ Excitatory Glu channel permiability to Cl - causes hyperpolarization and paralysis of worms/mites;

 

Tx: Worms (esp in the tx of Oncherciasis in attempts to erradicate river blindness), but also effective against other worms (strogyloides) and mites/scabes;

 

SE: CNS depression possible;

Term
Levatiracetam
Definition

Anti-Epileptic drug (AED);

MoA Unknown - binds to a synaptic vesicle protein,believed to impede nerve conduction across synapse;

 

Tx: Partial seizures, adjunct for general, partial, tonic-clonic seizures;

 

SE: Generally well tolorated - Fatigue, weakness, forgetfulness, occasionally depression/suicidal ideation

Term
Nicotinic Acid
Definition

Vitamin B3, Niacin;

 

Essential nutrient;

Deficiency causes Pellagra (diarrhea, dermatitis, Dilated cardiomyopathy, dementia, and death)

Term
Omeprazole
Definition

[Prilosec]

Proton Pump Inhibitor;

 

Tx: PUD, GERD, dyspepsia, ZE syndrome and with Abx to tx H. pylori infx;

 

SE: HA, diarrhea, ab pain, nausea, dizziness, trouble awakening/sleep deprivation

Term
Orlistat
Definition

Alli - Weight Loss agent;

Inhibitor of gastric and pancreatic lipases - blocks breakdown of ingested fats which makes them unabsorbable - eliminated;

 

Eating a fatty diet is associated with unpleasant side effects - aversion therapy, pt should limit fat intake;

 

SE: Steatorrea, flatulence;

 

CI: With cephalosporin (reduces its effectiveness)

Term
Oxybutinin
Definition

Anticholinergic;

Competitive antagonist of M1,2 and 3 subtypes of the mAch receptor;

 

Tx: Urinary and bladder difficulties (frequency/incontinence by decreasing muscle spasms of the bladder - remember that parasympathetics trigger voiding - blocking them reduces frequency), hyperhydrosis (excess sweating);

 

SE: Dry mouth, constapation, blurred vision, drowsiness;

Term
Oxytocin
Definition

From the posterior pituitary;

 

Promotes milk let down and used in the induction of labor;

Term
Pemoline
Definition

DA and NE reuptake inhibitor;

 

Highly hepatotoxic*

 

Schedule IV;

No longer availible generally in the US - shocker

Term
Phenylephrine
Definition
Nasal Decongestant;
Alpha 1 receptor agonist;

'Topical' or Oral Admin;
Use for <3 days - rebound congestion;

SE: HTN, Rhinitis medicamentosa (topical), tachycardia/arrhythmia;

CI: thyroid dz, DM, BPH, glaucoma
Term
Potassium Iodide
Definition
  • Can be used emergency tx for hyperthyroidism/thyroid storm (high amts of I  suppress secretion of thyroxine from the thyroid)
  • Has been used topically to tx sporotrichosis.
  • Symptomatic tx of erythema nodosum
  • Thyroid protection during medical tx - admin non-radioactive potassium iodide prior to nuclear medicine scans to ensure that iodide from these radiopharmaceuticals is not sequestered by the normal affinity of the thryoid for iodide.
  • Protection of the thyroid from radioactive fall out. Protective effect of KI lasts approximately 24 hours.
Term
Pyridoxine
Definition

Vitamin B6;

Supplement in pt taking INH for TB tx;

Term
Sulfadoxine
Definition

 

Ultra-long-lasting sulfonamide used in combo with pyrithamine to tx/prevent malaria;

Term
Synthetic GnRH
Definition

Avail. as gonadorelin hydrochloride;

IV admin via an infusion pump system;

 

Tx: induce ovulation in patients with hypothalamic hypogonadism;

 

Analog Leuprolide is used for continuous infusion, to tx breast carcinoma, endometriosis, prostate carcinoma, and precocious puberty;

Term
Tenecteplase
Definition
Recombinant tPA - see Ateplase card (tPA)
Term
Thyroxine
Definition

T4

Involved in controlling the rate of metabolic processes in the body and influencing physical development;

A prohormone and a reservoir for the active (T3), which is about four times more potent.

T4 is converted in the tissues by deiodinases incl thyroid hormone iodine peroxidase (TPO), to T3.

Term
Tirofiban
Definition

Anti-PLT drug - GPIIb/IIIa inhibitor;

Synthetic/non-peptide;

IV admin;

 

Tx: w Heparin and asprin in pt with unstable angina, non-Q wave MI,and pt undergoing angioplastyto prevent ischemic events;

 

SE: Bleeding (incl intracranial bleeding);

 

Caution: bleeding conditions, CVD, older pt, HTN, pericarditis.

Term
Trifluoperazine
Definition
Typical Antipsychotic
Term
Triflupromazine
Definition

Antipsychotic and Anti-emetic;

 

SE: (Has higher risk for side effects than many other antipsychotics- it is not gold standard in antiemetic therapy) - Akathesia, tarditive dyskinesia, Neuroleptic Malignant Syndrome;

Term
Desmopressin
Definition

DDAVP;

Synthetic vasopressin;
Binds the V2 receptors on the collecting ducts inducing resorption of water (only);

Tx: Diabetes insipidus, nocturia (bedwetting);

SE: HA, flushing, hyponatremia, seizures*

Term
Cigarette tobacco
Definition

Very effective delivery system for nicotine;
Delivered in bolus throughout the day. Reaches brain w/in 10 seconds. Addiction is to the rapid high brain concentrations achieved from smoking;

Nicotine itself is not carcinogenic, it is the 4,000 chemicals in cig smoke (aldehydes, polycyclic aromatic hydrocarbons, heavy metals) that are highly carcinogenic.

 

t1/2 = 2 hrs (chain smokers);

 

Women have a harder time quitting;

Smoking is more common in psychiatric populations (esp schzophrenics);

The highest dependence of any drug of abuse;

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