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Pharm exam #6
Drugs for DMU pharm exam #6
147
Medical
Professional
10/30/2012

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Term
LD50 of a poison
Definition
less than 50 mg/kg
Term
Primary determinant of toxicity
Definition
Time and dose
Term
Toxidromes
Definition
known toxicology standards which you compare with drug and/or chemical responses of the patient
Term
Apomorphine
Definition
Emesis inducer
utilized to remove unabsorbed toxicants from the GI tract
contraindications - chemical pneumonitis
Term
Syrup of ipecac
Definition
Emesis inducer
utilized to remove unabsorbed toxicants from the GI tract
contraindications - chemical pneumonitis
Term
Activated charcoal
Definition
very large surface area allows for binding of organic toxicants which prevents absorption
often induces emesis
Term
Pralidoxime
Definition
antidote that chelates toxicants
used to treat toxins that are AChase inhibitors (often organophosphates)
usually administered with atropine to block muscarininc effects of parasympathetic nervous system
Term
Cyanide
Definition
CNS and cardiac tissues affected
death in 1-15 minutes
administer amyl nitruite, sodium nitrite and sodium thiosulfate with O2 as antidote
Term
Botulinum toxin
Definition
Most potent poison known
rapidly absorbed and prevents ACh release from nerve terminals
most common: respiratory depression
Term
Heavy metal poisoning antidote
Definition
Chelators (BAL, EDTA, DMSA, DMPS, calcium EDTA, deferoxamine) complex with Hg, Pb, As, Fe and/or Ag making them inert and increasing renal excretion
Term
BAL (British Anti-Lewisite)
Definition
Chelator (heavy metal poisoning antidote)
Term
DMSA
Definition
Treatment of arsenic, mercury and lead poisoning
Term
Succimer
Definition
Treatment of arsenic, mercury and lead poisoning
Term
Trivalent antitoxin for Botulism A, B and E
Definition
Term
Cyanide antidote
Definition
small inhaled dose of amyl nitrite followed by IV sodium nitrite - these nitrites oxidize a portion of the hemoglobin's iron from the ferrous state to the ferric state, converting the hemoglobin into methemoglobin
then administer IV sodium thiosulfate - reacts with the cyanmethemoglobin to give thiocyanate (and sulfite) and hemoglobin
Term
Alcohol antidote
Definition
Inhibitor of metabolic conversion
Ethylene glycol/methanol/isopropyl alcohol
methanol converted into formaldehyde and formic acid by alcohol dehydrogenase
ethanol administration competitively prevents alcohol dehydrogenase from converting these substances into toxic forms
Term
Fomepizole
Definition
blocks alcohol dehydrogenase
DOC for ethylene glycol poisoning, methanol toxicity and other alcohol poisonings
Term
Carbon monoxide poisoning Tx
Definition
Artificial respiration with pure O2 to promote displacement of CO
hyperbaric oxygen chamber if symptomatic
Term
Warfarin
Definition
Term
Naloxone
Definition
Competitive receptor antagonist
acts at µ, κ, and δ receptors to competitively block/reverse the effects of opiates
duration of action: ~45 minutes
Term
Naltrexone
Definition
acts at µ, κ, and δ receptors to competitively block/reverse the effects of opiates
Longer duration of action (24-72 hrs) than naloxone
Term
Sympathomimetic toxidrome
Definition
Drugs - cocaine, amphetamines, PCP
Pupils - mydriasis
other - HTN, tremor, hyperthermia
Term
Sedative/Hypnotic toxidrome
Definition
Drugs - alcohol, barbiturates, benzodiazapines
CNS - coma
respiation - decreased
pupils - miosis or mydriasis
other - hypotension
Term
Opioid/Opiate toxidrome
Definition
drugs - opiates, morphine, codeine, propoxyphene, oxycodone, hydrocodone
CNS - coma (or decreased consciousness)
respiration - depressed
pupils - pinpoint (miosis)
other - "opiate triad"
Term
Anticholinergic toxidrome
Definition
Drugs - anticholinergics, antidepressants
CNS - agitation
pupils - mydriasis
other - fever, dry skin, flushing, urinary retention [hot, dry, mad, red, blind]
Term
Cholinergic toxidrome
Definition
Drugs - organophosphates, nicotine
Pupils - PPP
other - SLUDE
Term
TCA toxidrome
Definition
Drugs - TCA (amitriptyline, imipramine, desipramine)
CNS - coma, agitation
pupils - mydriasis
other - dysrhythmia, convulsions, hypotension (due to alpha blockade)
Term
Salicylate toxidrome
Definition
Drugs - aspirin
respiration - can increase or normal
other - diaphoresis, tinnitis, agitation, alkalosis (early), acidosis (late), hyperpyrexia
Term
Benzodiazepine toxication
Definition
rarely fatal unless taken with ETOH or other CNS depressant due to synergistic CNS depression
treat with a receptor antagonist - flumazenil
Term
Acetaminophen toxication
Definition
signs - (after depletion of glutathione) hepatic necrosis, death due to hepatic failure
treat with n-acetylcysteine
Term
Cocaine toxication
Definition
signs - cardiac dysrhythmia leading to cardiac arrest
treat with lidocaine
Term
Thyroid hormones and drugs that mimic thyroid hormones have effects on...
Definition
Metabolism, cardiac function and growth and development
Term
Half lives of thyroid hormones
Definition
very long
T3 = 1.5 days, T4 = 7 days
takes about a month for patients to reach euthyroid levels (4-5 half lives to get to steady state)
Term
Levothyroxine
Definition
synthetic T4
treatment of choice for replacement
Term
Liothyronine
Definition
Synthetic T3
Term
Liotrix
Definition
fixed-ratio mixture of T3 and T4
Term
Primary hyperthyroidism
Definition
Thyroid dysfunction
T4 high, TSH low
Term
Secondary hyperthyroidism
Definition
Pituitary dysfunction
T4 high, TSH high
Term
Primary hypothyroidism
Definition
Thyroid dysfunction
T4 low, TSH high
Term
Secondary hypothyroidism
Definition
Pituitary dysfunction
T4 low, TSH low
Term
Graves disease
Definition
Autoimmune disorder - Thyroid stimulating IgG
80% of all hyperthyroid cases
Women:men - 9:1 (15-20X incidence in women)
TSH suppressed, iodine uptake elevated, T4 elevated, goiter
Term
Hyperthyroid therapy
Definition
surgical removal of the thyroid gland
Radioactive iodine (RAI) - half life 5-6 days
Antithyroid agents - iodide salts, thiourea drugs, beta-blockers
Term
Propylthiouracil (PTU)
Definition
Inhibitor of peroxidase enzyme
Thiourea drug - antithyroid agent
useful in the treatment of hyperthyroidism - short term fix
PO with effects after 30-60 min
Contraindicated in pregnancy and lactation
Term
Methimazole
Definition
Inhibitor of peroxidase enzyme
Thiourea drug - antithyroid agent
useful in the treatment of hyperthyroidism - short term fix
PO with effects after 30-60 min
Contraindicated in pregnancy and lactation
Term
Propranolol
Definition
reduces tachycardia, palpitations and dysrhythmia associated with hyperthyroidism
Immediate action in thyroid storm
Controls symptoms prior to surgery or RAI treatment response
Term
SSKI (saturated solution of potassium iodide)
Definition
Iodide salt
Temporarily suppresses thyroid hormone production and release - short term fix
Term
Lugol's solution (KI)
Definition
Iodide salt
thyro-block
radiation
contraindicated in pregnancy
Term
NaI
Definition
Iodide salt
for acute management of thyrotoxic crisis
contraindicated in pregnancy
Term
Radioactive iodine (AI)
Definition
delivered orally as a tasteless and colorless liquid
concentrated solely within the thyroid gland
emits β-particles and γ-rays that destroy the thyroid either partially or totally
as thyroid tissue is destroyed, TH levels are reduced over several weeks
because of delayed onset of action, short-term application of β-blockers are often employed for symptomatic treatment
contraindicated in pregnancy
Term
Hashimoto's Disease
Definition
Autoimmune thyroiditis in which mutated T-cells become active against cells of the thyroid gland
Term
Myxedema
Definition
a severe form of adult hypothyroidism caused by decreased functionality or removal of the thyroid gland
thyroid gland
resolved with replacement therapy
Term
Cretinism (congenital hypothyroidism)
Definition
usually due to RAI exposure in utero
stunted brain and anterior pituitary growth resulting in severely reduced mental activity/ability and dwarfed physical development
If left undiagnosed into childhood macroglossia will ocur
Term
GLUT4
Definition
Transporter in muscle and adipose tissue
Insulin mediated uptake of glucose
Term
Diabetes Mellitus type I
Definition
B-cell destruction
leads to absolute insulin deficiency
genetic predisposition
immune mediated
idiopathic
Term
Diabetes Mellitus type II
Definition
Insulin resistance and insulin secretory defect
genetic predisposition
obesity
lack of nutrition and physical activity
Term
Diabetes Mellitus type IV
Definition
Gestational diabetes
onset of glucose intolerance usually in the 2nd and 3rd trimester
4% of pregnancies
return to normal glucose tolerance post-delivery
40% of diagnosed women will develop diabetes within the next 10 years
Term
Symptoms of diabetes mellitus
Definition
increased urination
increased thirst
fatigue
weight loss
hunger
frequent infections
slow healing of wounds or sores
Term
Insulin therapy
Definition
Mainstay treatment of type I and many type II DM patients
administered IV, IM, inhalation, SCI (most common)
therapeutic goal - FBG 90-120 mg/dL
Term
Insulin lispro
Definition
Rapid acting insulin
Amino acid alteration in C-terminal tail of the B peptide preventing insulin complex formation
duration: 3-5 hours
Term
Insulin aspart
Definition
Rapid acting insulin
Amino acid alteration in C-terminal tail of the B peptide preventing insulin complex formation
duration: 3-5 hours
Term
Insulin glulisine
Definition
Rapid acting insulin
Amino acid alteration in C-terminal tail of the B peptide preventing insulin complex formation
duration: 3-5 hours
Term
inhaled insulin
Definition
Rapid acting insulin
Amino acid alteration in C-terminal tail of the B peptide preventing insulin complex formation
duration: 3-5 hours
Term
regular insulin
Definition
Short acting insulin
Identical to human insulin, forms complexes
duration: 4-12 hours
Term
NPH
Definition
Intermediate acting insulin
Protamine-insulin complex
duration: 10-20 hours
Term
Glargine
Definition
Long acting insulin
Amino acid substitutions that result in precipitate formation at a more neutral pH in the body
Duration 12-20 hours
Term
Detemir
Definition
Long acting insulin
Amino acid substitutions that result in precipitate formation at a more neutral pH in the body
Duration 22-24 hours
Term
Metformin
Definition
Oral antidiabetic agent - Biguanide
1st line agent
does not produce hypoglycemia
not dependent upon beta-cell function
MOA - decrease hepatic glucose output
Adverse effect - GI disturbances
Term
Estrogen
Definition
Endometrium - proliferation
Decrease LDL, increase HDL, increase triglycerides
Menstrual cycle - key regulator during follicular phase
Term
Progesterone
Definition
Edometrium - differentiation, prepares for implantation, decrease uterine contractions
increase LDL, increase fat deposition
Menstrual cycle - key regulator during luteal phase
Cervical glands - increase cervical mucous viscosity
Term
Diethylstilbestrol (DES)
Definition
First synthetic non-steroidal estrogen
not used much today
prototype - tested a lot because of previous clinical impact
Term
Pharmacological use of estrogen
Definition
Hypogonadism - increase development of sex organs
Contraception - inhibit ovulation
Acne - inhibit steroidogenesis, decrease free testosterone concentrations
HRT - decrease bone resorption/vasomotor symptoms, urogenital atrophy
Term
Estrogen - adverse effects
Definition
Nausea, breast tenderness, endometrial hyperplasia, cholestasis, increased blood coagulation, migraine, cancer, bloating
Term
Medroxyprogesterone (MPA)
Definition
Commonly combined with estrogen for HRT
used as a long acting contraceptive (Depo-Provera)
Term
Norethindrone
Definition
Combinational or progestin only hormone contraception
0.5-1 mg/day when combined with estrogen, lower when alone
19-nortestosterone derivative
Nor-QD
Term
Norgestrel
Definition
combinational or progestin only hormone contraception
0.5-1 mg/day when combined with estrogen, lower when alone
19-nortestosterone derivative
Ovrette
Term
Pharmacological use of progestins
Definition
Contraceptive - alone or in combination with estrogen
HRT - decrease risk of endometrial hyperplasia caused by estrogens
dysmenorrhea - decrease endometrial mass and decrease prostaglandin production
endometriosis - decrease endometrial proliferation by regulating ER experession and stimulating differentiation of endometrial cells
Term
Progestins - adverse effects
Definition
Breakthrough bleeding
impaired glucose tolerance
ance
lipid metabolism
Term
Oral pill
Definition
Hormones - Estrogens and Progestins or progestins only
Treatment duration - monthly, quarterly or yearly
MOA - Supresses LH and FSH surge (inhibits ovulation), alters cervical mucous to create a physical barrier, alters endometrium to inhibit implantation
Term
Injectable birth control
Definition
Hormones - Estrogens and Progestins or progestins only (more commonly only progestins)
Treatment duration - monthly or quarterly
MOA - Supresses LH and FSH surge (inhibits ovulation), alters cervical mucous to create a physical barrier, alters endometrium to inhibit implantation
Term
Implantable birth control
Definition
Hormones - Progestins alone
Treatment duration - 3 or 5 years
MOA - Supresses LH and FSH surge (inhibits ovulation), alters cervical mucous to create a physical barrier, alters endometrium to inhibit implantation
Term
Intrauterine device (IUD)
Definition
Hormones - Progestins alone or copper
Treatment duration - 5 years
MOA - Supresses LH and FSH surge (inhibits ovulation), alters cervical mucous to create a physical barrier, alters endometrium to inhibit implantation
Term
Transdermal patch
Definition
Hormones - Estrogens and Progestins
Treatment duration - monthly
MOA - Supresses LH and FSH surge (inhibits ovulation), alters cervical mucous to create a physical barrier, alters endometrium to inhibit implantation
Term
Vaginal ring
Definition
Hormones - Estrogens and Progestins
Treatment duration - monthly
MOA - Supresses LH and FSH surge (inhibits ovulation), alters cervical mucous to create a physical barrier, alters endometrium to inhibit implantation
Term
Depo-provera
Definition
Injectable birth control
Medroxyprogesterone (MPA)
dosing - IM every 3 months
Term
Implanon
Definition
Implantable birth control
Etonogestrel
Implant every 3 years
Term
Mirena
Definition
IUD
Levonorgestrel
Implant may remain for 5 years
Term
NuvaRing
Definition
Vaginal ring
Ethinyl estradiol or Etonogestrel
Self-implant for 3 week period (1 week break)
Term
Ortho EVRA
Definition
Transdermal birth control
Ethinyl estradiol or Norelgestromin
3 week period with patch, replace once a week (1 week break)
Term
Levlen
Definition
Emergency birth control
Ethinyl estradiol or Levonorgestrel
Normal 28 day pack, increase dose, repeat after 12 hours
Term
Plan-B
Definition
Emergency birth control
Levonorgestrel
take within 72 hours post sexual intercourse
Term
Contraindications for estrogen containing contraceptives
Definition
Hx of breast cancer
Thomboembolic disorders
Liver disease
Hx of cardiovascular disease
Smokers 35 yaers of age or older
Term
Clomiphene
Definition
Estrogen receptor partial agonsist
Fertility drug
Adverse effects - multiple births, hot flashes, ovary enlargement, blurred vision
Term
Tamoxifen
Definition
Selective estrogen receptor modulator (SERMS)
Term
Raloxifene
Definition
Selective estrogen receptor modulator (SERMS)
Term
Danazol
Definition
Inhibits estrogen
used for endometriosis and breast fibrocystic disease
Term
Anastrazole
Definition
Inhibits estrogen
Aromatase inhibitor
Used in breast cancer
Term
Letrozole
Definition
Inhibits estrogen
Aromatase inhibitor
Used in breast cancer
Term
Mifepristone
Definition
Anti-progesterone (progesterone receptor modulator)
Abortifacient
Progesterone antagonist
Term
Ulipristal
Definition
Anti-progesterone (progesterone receptor modulator)
Long acting emergency contraceptive that can be used up to 5 days after intercourse
Progesterone partial agonist
Term
Cosyntropin
Definition
ACTH agent - not very antigenic
adjunct in MS, ALS, myasthenia gravis and immunosuppresion
Term
Fludrocortinsone
Definition
Mineralcorticoid agent
activates mineralcorticoid receptor
used in hypoaldosteronism
Term
Spironolactone
Definition
Mineralcorticoid antagonist
Competitive inhibitor of mineralocorticoid binding
used as a K+ sparing diuretic, for HTN, CHF, cirrhosis, hyperaldosteronism and hirsutism
Adverse effect - hyperkalemia
Term
Hydrocortisone
Definition
Short acting corticosteroid
fast onset
Term
Prednisone
Definition
Intermediate acting corticosteroid
prodrug - converted to prednisolone by the liver
Term
Prednisolone
Definition
Intermediate acting corticosteroid
anti-inflammatory and immunosuppresion
Term
Dexamethasone
Definition
Long acting corticosteroid
does not cross react in cortisol assays
Term
Glucocorticoid pharmacologic actions
Definition
Increased renal excretion of calcium
Decreased osteoblastic activity - indirect stimulation of PTH leads to an increase in osteoclast activity and osteoporosis
Increase in blood pressure
Term
Aminoglutethimide
Definition
Adrenal steroid antagonist
inhibits desmolase activity
used in adrenal hypersecretion and breast cancer
Term
Ketoconazole
Definition
Adrenal steroid antagonist
Antimycotic - greater tissue concentrations are required for anti-steroidogenesis
inhibits 11 beta-hydroxylase and 17 alpha-hydroxylase
used in adrenal hypersecretion
Term
Metyraprone
Definition
Adrenal steroid antagonist
inhibits 11 beta-hydroxylase
used for assessing adrenal function and short term hypersecretion
Term
Mifepristone
Definition
Adrenal steroid antagonist
glucocorticoid receptor antagonist
requires greater concentrations than for anti-progestin effects
Term
Testosterone esters
Definition
Anabolic steroid
Slow release, depot effect
Slow metabolism, longer duration
Term
17-alkylated androgen
Definition
Anabolic steroid
Increased oral bioavailability
slower metabolism
potential for hepatotoxicity
Term
C-19 modified androgen (nandrolone)
Definition
Anabolic steroid
Less susceptible to peripheral aromatization
Term
Androgens - pharmacodynamic effects
Definition
Nitrogen retention and enhanced protein synthesis
Enhanced erythropoiesis
Increased bone mass, enhanced linear bone growth and closure of epiphyseal plate
Term
Androgens - contraindications
Definition
Carcinoma of the prostate or prostatic hypertrophy
Hepatic disease
CV disease
Renal disease
Polycythemia
Pregnancy
Term
Androgens - therapeutic uses
Definition
Aging - Low T syndrome
Sexual dysfunction
Gynecological disorders/cancer
Anemia
AIDS-associated wasting
Term
Androgens - dosing regimens
Definition
Replacement - 21 mg/day
Performance enhancement - 25-200 mg/day or more
Term
Anti-androgens - therapeutic uses
Definition
Females - hirsutism
Males - precocious puberty, prostatic cancer, alopecia, psychosocial deviance (chemical castration)
Term
Cyproterone (steroid)
Definition
Androgen receptor antagonist
has a weak progesterone like effect
Term
Flutamide (non steroid)
Definition
Androgen receptor antagonist
indirectly increases GnRH and LH release leading to gynecomastia
Term
Spironolactone
Definition
Androgen receptor antagonist
indirectly increases GnRH and LH release leading to gynecomastia
Term
Finasteride
Definition
Anti-androgen
5-alpha-reductase inhibitor
Term
Leuprolide
Definition
Anti-androgen
GnRH agonist
[testosterone] decreases by 90% after one month
administer with flutamide to minimize increased tumor activity
Term
DHEA
Definition
androgen
has received a lot of attention as an anti-aging drug
Term
Sodium lauryl sulfate
Definition
Detergent
Anionic wetting agents
Term
Benzalkonium chloride
Definition
Detergent
cationic wetting agent
inactivated by anionic compounds
Term
Antiseptic
Definition
An agent that kills or prevents the growth of microbes when applied to living tissue
Term
Disinfectant
Definition
agent that prevents infection by the destruction of pathogenic microbes on non-living surfaces
Term
Ethyl alcohol
Definition
Alcohol
Can be used as an antiseptic
Surface effect makes them useful for increasing effectiveness of other agents
Recommended concentration [40-70%]
Term
Isopropyl alcohol
Definition
Alcohol
Can be used as an antiseptic (also as a disinfectant)
Surface effect makes them useful for increasing effectiveness of other agents
Causes more local vasodilation (bleeding) beneath the skin after needle puncture
Term
Povidone-iodine
Definition
Iodophor
skin prep of patient and surgeon
antiseptic on skin, membranes
Term
Silver sulfadiazine
Definition
Silver compound
Use - burn treatment
Term
Thimerosal
Definition
Organic mercurial
Antiseptic for surgical prep of skin, mucous membranes and open wounds
DO NOT BANDAGE
Term
Hydrogen peroxide
Definition
Oxidizing agent
gas needs to escape, avoid abscess or bandage
Term
Hexachlorophene
Definition
Substituted phenol
topical antiseptic and hand cleaner
requires repeated daily application
most effective against gram positive
Term
Chlorhexidine gluconate
Definition
Chelating agent
potentiate activity of many antibacterials against gram negative
one of the best antiseptics bc of low incidence of side effects and residual effect after the scrub is over
Term
Hydrogen peroxide
Definition
Oxidizing agent
gas needs to escape, avoid abscess or bandage
Term
Hexachlorophene
Definition
Substituted phenol
topical antiseptic and hand cleaner
requires repeated daily application
most effective against gram positive
Term
Chlorhexidine gluconate
Definition
Chelating agent
potentiate activity of many antibacterials against gram negative
one of the best antiseptics bc of low incidence of side effects and residual effect after the scrub is over
Term
Lanolin
Definition
Emollient
lubricate, soften and protect skin
Term
Acetic acid
Definition
Astrigent
applied to skin to produce a local and limited protein coagulation effect
dehydrates skin
Term
Salicyclic acid
Definition
Keratolytic agent
Causes removal of dead skin
Term
Coal tar
Definition
Keratoplastic agent
Stimulates the epidermis but doesn't produce destruction and desqumation
Lots of potential side effects
Term
Starch
Definition
Dusting powder - absorbent
Term
Methyl salicyclate (Ben-Gay)
Definition
Counterirritant
relieves pain in viscera, muscles and joints
Term
Dextranomer
Definition
Wound cleaning agent
non-enzymatic cleaner
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