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USMLE drugs
durgs
128
Medical
Professional
03/17/2011

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Term
fomepizole
Definition
inhibits alcohol dehydrogenase without effect upon CNS or need for monitoring levels
Term
hydralazine
Definition
treat high blood pressure. Dilates small arteriols
Term
Nesiriitide
Definition
treat CHF, act as recombinant form of the 32 amino acid human B-type natriuretic peptide
Term
imatinib
Definition
tyrosine kinase inhibitor
Term
Lorazepam
Definition
a benzodiazepam drug that binds to increase action of GABA
Term
dimercaprol
Definition
chelating agent used to treat arsenic poisoning
Term
cyproheptadine
Definition
antihistamine with anti 5HT activity. used to treat serotonine syndrome
Term
Pheneizine
Definition
MAOi, useful for atypical depression
Term
enalapril
Definition
ACEi
Term
metoprolol
Definition
beta 1 blocker
Term
lamotrigine
Definition
antiepileptic, can cause steven-johnson syndrome
Term
eplerenone
Definition
aldosterone receptor antagonist
Term
digoxin
Definition
antidyrhythmics, with toxicity of visual and GI disturbances
Term
vincristine
Definition
Vinca alkaloid, inhibit microtubule formation, causes neurotoxicity
Term
etoposide
Definition
antitumor antibotics, inhibits topoisomerase II
Term
Niacin
Definition
inhibits VLDL synthesis
Term
Gemfibrozil
Definition
Inhibits peripheral lipolysis, decreases hepatic free fatty acid extraction, inhibits synthesis and increases clearance of VLDL carrier apolipoprotein B, mechanism of increased HDL unknow
Term
protamine
Definition
used to stop heparin, it binds to it
Term
enoxaparin
Definition
low molecular wt heparin, activates antithrombin III and inhibit factor Xa
Term
acyclovir
Definition
nucleatide analog, interferes with DNA polymerase to inhibit DNA replication via chain termination
Term
flurazepam
Definition
long acting benzodiazepine, increase risk of daytime drawsiness
Term
entacapone
Definition
reversible COMT inhibitor that prolongs half life of levodopa in Parkinsonia Pts
Term
Cholestyramine
Definition
Used to lower serum lipid, blinds to intestinal bile acids...which increases hepatic cholesterol synthesis...increased risk for gallstone
Term
alendronate
Definition
similar to bisphosphonate, inhibit osteoclast activity, reducing bone resorption and turnover
Term
amitriptyline
Definition
anticholinergic, neurotransmitter reuptake inhibitor
Term
leuprolide
Definition
GnRH analog, decreases LH and FSH
Term
Amiloride
Definition
K+ sparing diuretics. blocks Na+ channels in the cortical collecting tubule
Term
primidone
Definition
anti-seizure and metabolized to phenobarbital
Term
Capsaicin
Definition
used to relieve the pain of peripheral neuropathy. Binds to neuronal transient potential vanilloid receptor 1, depletes substance P, decreases substance P
Term
propranolol
Definition
non-selective beta blocker
Term
methiazole
Definition
inhibits thyroid peroxidase activity
Term
pyridostigmine
Definition
anticholinesterase agent
Term
atropine and side effects
Definition
muscarinic antagonist

Side effects:
hot as a hare
dry as a bone
red as a beet
blind as a bat
mad as a hatter
bloated as a toad
Term
acyclovir
Definition
interferes with DNA polymerase to inhibit DNA replication via chain termination
Term
Muromonab-CD3
Definition
Monoclonal antibody that blinds to CD3 (epsilon chain) on the surface of T cells. Blocks cellular interaction with CD3 protein responsible for T cell signal transduction
Term
erythropoietin side effect
Definition
hypertension
Term
causes of cleft lip and cleft palate
Definition
unknown and mutlifactorial
Term
glyburide
Definition
diabetes drug
initially incr beta cell insulin secretion
also decr reate of hepatic glucose production, incr insulin receptor sensitivity, and incr # of insulin receptors
Term
Metronidazole
mech
clinical use
toxicity
Definition
Forms toxic metabolites in the bacterial cell that damage DNA. Bactericidal, antiprotozoal.
treats Giardia, Entamoeba, Trichomonas, Gardnerella vaginalis, Anaerobes (bacteroides, clostridium). Used with bismuth and amoxicillin (or tetracycline) for "triple therapy" against H. Pylori.
Toxicity: Disulfiram like reaction with EtOH, headache, metallic taste
Term
probenecid
Definition
for chronic gout. Inhibits reabsorption of uric acid in PCT
also inhibits secretion of PCN
Term
Bleomycin
mech
toxicity
Definition
inhibit synthesis of components needed for mitosis
The most serious complication of bleomycin is pulmonary fibrosis and impaired lung function
Term
cyclosporine
mech
clinical use
toxicity
Definition
blinds to cyclophilins. complex blocks the differentiation and activation of the T cells by inhibiting calcineurin, thus preventing the production of IL-2 and its receptor.
Suppresses organ rejection after transplantation, selected autoimmune disorders
predisposes patients to viral infections and lymphoma, nephrotoxic(preventable with mannitol diuresis)
Term
tranylcypromine
mech
clinical use
toxicity
Definition
Monoamine oxidase inhibitor, incr levels of amine neurotransmitters.
aptypical depression, anxiety, hypochondriasis.
hypertensive crisis with tyramine ingestion (in many foods, suck as wine and cheese) and beta agonists; CNS stimulation. Contraindicated with SSRIs or meperidine (to prevent serotonin syndrome)
Term
Scopolamine
Definition
a tropane alkaloid drug with muscarinic antagonist effects
Term
Dopamine's different at different concentrations
Low
Medium
High
Definition
low: D1=D2
Medium: Beta
High: alpha
Term
what is finasteride
Definition
used to treat BPH and male baldness
inhibits type II 5 alpha-reductase, interfering with conversion of testosterone to DHT
Term
what intrapartum antibiotics are used to treat group B strep colonization of vagina/rectum?
Definition
PCN or ampicilin
Term
Thiazolidinediones
Definition
diabetes drug that decreases insulin resistance
Term
amphotericin B
Definition
binds ergosterol and also to some degree cholesterol. causes nephrotoxicity, hypokalemia, and hypomagnesemia
Term
what do you need to watch out for when prescribing TNF-alpha inhibitor
Definition
TB
Term
1st generation antihistamine
Definition
hydroxyzine
promethazine
chlorpheniramine
diphenhydramine

Side effects include anti-muscarinic, anti-serotonergic, and anti-alpha
Term
fexofenadine
Definition
2nd generation antihistamine that does not cross BBB
Term
Nystatin
Definition
anti-fungal, not absorbed from GI, binds to ergosterol and is the drug of choice for oropharygeal candidiasis in immuno-compromised pts
Term
What is the most common cause of death by TCA?
Definition
death by refractory hypotension and cardiac arrhythmia. Through inhibition of fast Na cahnnel in cardiac myocyte and His Purkinje system.
Treat with hypertonic sodium bicarbonate
Term
What are the 5 action of TCA? what are the 5 side effects?
Definition
1. block NE and 5HT reuptake
2. block cardiac fast Na channel.
3. Antagonism of central and peripheral ACh receptors
4. Antagonism of peripheral alpha-1-adrenergic recepters.
5. Antagonism of H1 receptors
Side effects
1. tremor, insomia
2. conduction defects, arrhythmias, hypotension.
3. hyperthermia, flushing, dilated pupils. intestinal iileus, urinary retenion, sinus tachycardia.
4. peripheral vasodilation. (orthostatic hypotension.
5. sedation
Term
can prednisone cause osteoporosis?
Definition
yes
Term
Penicillamine
Definition
Chelates copper and other heavy metals, removing excess; combines with cystine, resulting in more soluable compound for excretio, preventing cystine calculi.
Also has anti-rheumatic mech of unknown action
Term
small jaws (micrognathia), small eyes (microphthalmia), malformed and low set ears, foot malformation (rocker-bottom feet) prominent occiput, CLENCHED HANDS WITH OVERLAPPING FINGERS
Definition
Ediwards syndrome (trisomy 18)
Term
Colchicine
Definition
inhibits tubulin polymerization and microtubule formation in leukocytes->reduce nuetriphil chemotaxis and migration.
many pt develop diarrhea b/c gastrointestinal mucosa are affected
Term
mech of acetaminophen toxicity
Definition
depletion of reduced glutathion
Term
cholestyramine
Definition
binds intestinal bile acids
Term
Can we use non-selective beta blockers for DM?
Definition
no...it will mask the adrenergic symptoms. Use beta 1 blocker if you have to
Term
what happens if you take appetite suppressant like feufluramine or phetemine for a long time?
Definition
Pulmonary hypertension->right ventricular hypertrophy.
Term
what is acetylcysteine?
Definition
breaks disulfide bonds, decreasing musus viscosity; replenishes glutathione.
Term
tetrodotoxin and sexitoxin
Definition
from puffer fish, blocks sodium channel. causes paralysis...pt stops breathing
Term
what do adenosine and Ach do to the heart?
Definition
redce the rate of spontaneous depolarization in cardiac pacemaker cells
Term
nitroprusside use and poisoning
Definition
used for emergency hypertension. Can cause cyanide poisoning. Treat with sodium thiosulfate
Term
what kind of defect does valporic acid cause for the developing fetus?
Definition
neurotube defect
Term
can cholestyramine increase TG level?
Definition
yes
Term
Tobramycin and ampicillin together have synergistic effects?
Definition
yes
Term
Pt w/ history of seizure and mental illness presents with gingival hyperplasia, what has he been using?
Definition
Phenytoin
Term
what the life threatening side effect of clozapine?
Definition
agranulocytosis, decr WBC, requires weekly WBC monitoring
Term
What is the piperacillin/tazobactam combo's benefit?
Definition
Tazobactam inhbits beta lactamase
Term
what's the treatment of choice for lyme disease?
Definition
early stage: doxycycline
late stage: ceftriaxone
Term
what's the treatment of choice for testicular cancer and what is its main side effect?
Definition
Bleomycin
it causes pulmonary fibrosis
Term
what color does phenolphthalein into when in acidic environment? in alkaline environment?
Definition
acidic: colorless
alkaline: pink/red
Term
naproxen
Definition
essentially an NSAID
Term
An infant presents with severe lower respiratory tract infection. Tissue culture shows a virus causing development of multinucleated cells. What's the diagnosis? what drug do you use to treat?
Definition
Human respiratory syncytial virus (RSV)
treat with ribavirin
Term
What is ursodeoxycholic acid?
Definition
its used for decrease concentration of bile acids
Term
what drug are selective strogen receptor modifiers (SERM)? they function as receptor antagonists in breast, agonists in bone?
Definition
tamoxifen and raloxifene
Term
Does raloxifene cause endometrial carcinoma?
Definition
no, because it is an endometrial antagonist
Term
what are the two most immediate physical symptoms of marijuana use?
Definition
rapid heart rate
conjunctival injection (red eye)
Term
does cimetidine induce or inhibits P-450?
Definition
inhibits
Term
what drug do you give to pt who has peptic ulcer who wants to cont to take NSAID?
Definition
misorpostol
Term
what's terazosin?
Definition
it's an alpha 1 blocker
Term
Zolpidem
Definition
for insomnia...has the low risk of tolerance and dependence
Term
what is imipramine?
Definition
TCA, block uptake of NE and serotonin
Term
what medication can cause body fat redistribution syndrome?
Definition
HIV-1 protease inhibitor and glucocorticoids
Term
What's special about fenoldopam?
Definition
Used for treating malignant hypertension. Dopamine D1 receptor agonist-relaxes renal vascular smooth muscle.
Term
what do you need to monitor if you are treating your DM pt with thiazolidinediones?
Definition
liver funtions
Term
what's the first line treatment for acute gouty arthritis?
Definition
NSAID
Term
what old antihypertensive drug still used in economically disadvantaged regions causes depression by decreasing NE and 5-HT?
Definition
Reserpine, it's an sympatholytic by blocking storage of adrenergic mediator in presynaptic vesicles to reduce synaptic cleft concentration of norepinephrine.
Term
what's zidovudine?
Definition
for HIV, inhibits reverse transcriptase
Term
how do you treat acetaminophen toxicity and what's the mech?
Definition
treated w/ sulfhydryl group supplementation. N-acetylcysteine provides that.
Term
what's the advantage of using buspirone for generalized anxiety disorder?
Definition
it's an partial 5-HT agonist, therefore does not cause sedation, addiction, or tolerance.
Term
what does abciximab do?
Definition
binds to platelet glycoprotein IIb/IIIa receptors, inhibiting aggregation.
Term
what drug is used to suppress organ rejection after transplantation, blinds to cyclophilins. Complex blocks the differentiation and activation of T cells by inhibiting calcineurin, thus preventing the production of IL-2 and its receptor?
Definition
cyclosporine
Term
what's prazosin?
Definition
alpha 1 antagonist.
Term
what's the mech of 5-FU?
Definition
pyrimidine analog bioactivated to 5F-dUMP, which covalently complexes folic acid. This complex inhibits thymidylate synthase -> decr dTMP -> decr DNA and decr protein synthesis
Term
How does hydroxyurea work?
Definition
inhibits ribonucleotide reductase -> decr DNA synthesis (S-phase specific)
Term
to speed recover from muscle relaxant such as tubocurarine, what two drugs are used?
Definition
atropine and neostigmine
Term
what is risperidone used to treat?
Definition
Schizophrenia
it blocks 5HT2, alpha, H1 and dopamine receptors.
Term
what's the drug of choice in diagnosing/abolishing supraventricular tachycardia and is also very short acting?
Definition
adenosine
incr K+ out of cell->hyperpolarizing the cell + decr intracellular Ca
Term
what's mefloquine used for?
Definition
prophylaxis for malaria
Term
what is paroxetine?
Definition
it's an SSRI
Term
How dose LSD work?
Definition
partial agonist at serotonin receptor
Term
what's glyburide and what does it do?
Definition
it's a sulfonylurea and closes K+ channel in beta cell membrane, so cell depolarizes -> triggering of insulin release via incr'd Ca++ influx
Term
what's enoxaparin?
Definition
low molecular weight heparin
blinds to antithrombin III and accelerates activity, inhibiting thrombin and Factor Xa.
Less monitoring required than heparin
Term
what's sulfasalazine what is it used for?
mech?
Definition
for ulcerative colitis and Crohn's disease
only works in terminal ileitis, or colon.
don't worry about exact mech, it's activated by colonic bacteria
Term
if a pt with DM2 and HTN is put on Niacin, how should his/her DM2 and HTN meds be adjusted?
Definition
increase DM2 meds due to insulin resistance
decrease HTN meds due to flushing
Term
a pt is diagnosed with a vascular tumor that features CD31...what tumor is it?
Definition
CD21 is aka PECAM1
Liver angiosarcoma
Term
What is cilostazol?
Definition
a PDE inhibitor used in Pt w/ intermittent claudication. In addition to inhibition of platelet aggregation, cilostazol is also a direct arterial vasodilator.
Term
what's the mech of colchicine?
Definition
blocking tubulin polymerization and thus disrupt chemotaxis and phagocytosis
Term
what are the toxicities of statin drugs?
Definition
hepatotoxicity and myopathy
elevation of creatinine kinase
Term
if statin and fibrate are used together, what are the risks?
Definition
elevated risk of myopathy
Term
What's pramipexole?
Definition
it stimulates dopamine receptor
Term
what is pentazocine?
Definition
it's a partial opioid agonist
Term
what is metyrapone?
Definition
inhibit formation of cortisol, corticosterone and alsosterone
Term
what are the two classic drugs that induce lupus and through what mech?
Definition
hydralazine and procainamide. through N-acetylation in liver.
Term
what causes the rapid plasma decade of bartiturates for pt under going anesthesia?
Definition
redistribution of the drug to other tissues
Term
what drugs can you give a demented pt to help sleep?
Definition
Trazodone or Haloperidol
Term
what's halothane's toxicity?
Definition
hepatotoxicity
Term
what antibiotic is used for meningococcal prophylaxis?
Definition
Rifampin
Term
What drugs are inhibitors of P-450?
Definition
(SICKPAGE)
Sulfonamides
Isoniazid
Cimetidine
Ketoconazole
Protease inhibitors
Acute alcohol use
Grapefruit jice
Erythromycin
Term
what durg treats both BPH and HTN at the same time?
Definition
alpha 1 blockers
Term
what drug do you use to control carcinoid syndromes?
Definition
octreotide (synthetic somatostatin analog)
Term
which bile acid resins also happen to bind to C. diff toxins?
Definition
cholestyramines
Term
which lipid lowering drug actually has the side affect of incr plaque thickness?
Definition
ezetimibe
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