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USMLE
Comprehensive Pharm 10
Question | Answer |
---|---|
MOA orlistat | inhibits pancreatic lipase |
clinical use of orlistat | obesity management |
toxcicity of orlistat | gi discomfort steatorrhea reduced absorption of fat soluble vitamins ha |
MOA sibutramine | sympathommimetic 5HT and NorE reuptake inhibitor |
uses of sibutramine | short term and long term obesity management |
toxicity of sibutramine | htn tachycardia |
uses of GH | GH deficiency turner's syndrome |
uses of somatostatin | acromegaly carcinoid gastrinoma glucagonoma |
uses of octeroitide | (aka somatostatin) acromegaly carcinoid gastrinoma glucagonoma |
uses of adh | pituitary DI |
MOA propylthiouracil | inhibits organification and coupling of thyroid hormone synthesis decreased peripheral conversion of T4 --> T3 |
Which drugs block peptidoglycan cross-linking | Cephalosporin -cillins -nam/-nem |
which drugs block peptidoglycan synthesis? | bacitracin vancomycin cycloserine |
which drugs block bacterial/fungal cell wall synth | polymyxins |
which drugs disrupt fungal cell membranes | amphotericin b nystatin -azoles |
which drugs block NT synth | "Try my cell phone - I blocked the New Cleo" Sulfonamides trimethoprim |
which drugs block DNA synth | "TOPless DANcing Queen" (insert abba song here... :) Topoisomerase Quinolones |
which drugs block mRNA synth | rifampin |
Which drugs block protein synth at the 50S subunit? | -mycins linezolid -gramins macrolides chloramphenicol |
which drugs block protein synth at the 30S subunit | Aminoglycosides tetracyclines |
MOA penicillin | it binds to penicillin binding proteins blocks the cross-linking of peptidoglycan activates autolytic enzymes |
uses for penicillin | gram + cocci and rods GNR spirochetes |
which penicillins are the penicillinase resistant? | Nafcillin dicloxacillin methicillin |
clinical uses for penicillinase resistant penicillins? | S. aureus (except for MRSA) |
why are penicillinase resistant penicillins resistant to penicillinase | bulikier R group |
how is MRSA resistant to methicillin | altered penicillin binding protein target site |
adverse reaction to methicillin | interstitial nephritis |
examples of aminopenicillins | ampicillin amoxicillin |
what is clavulanic acid | penicillinase inhibitor |
clinical uses for aminopenicillins | "ampicillin/amoxicillin HELPS kill enterococci" H. influenza e. coli Listeria monocytogenes Proteus mirabilis Salmonella Enterococci |
anti-pseudomonal drugs | "Take Piper in the Car, Sue" ticarcillin piperacillin carbenicillin |
MOA cephalosporins | same as penicillins, less susceptible to penicillinases |
uses for 1st generation cephalosporins | PEcK Proteus E coli Klebsiella |
uses for 2nd generation cephalosporins | HEN PEcKS H. flu Enterobacter Neisseria Proteus E. coli Klebsiella Serratia |
examples of 1st generation cephalosporins | "You FAILed the FIRST PHASE" cefazolin cephalexin |
examples of 2nd generation cephalosporins | "Wait a SECOND! You SEE, FOX FUR is a FACt" cefoxitin cefuroxime cefaclor |
3rd generation cephalosporins | "If you are THIRsty, try a FOTO TAZER" Cefotaxime Ceftazidime ceftriaxone |
clinical uses of aztreonam | klebsiella pseudomonas serratia (GNR only, nothing against gm + or anaerobes) |
who is given aztreonam | penicillin allergic pts pts w renal insuff that can't tolerate aminoglycosides |
what is cilastatin? | inhibits renal dihydropeptidase I always administered with imipenem |
clinical uses for imipenem/meropenem? | gram + cocci GNR anaerobes |
toxicity of imipenem, meropenem | gi distress rash seizures (all occcur at high plasma levels) |
MOA aminoglycosides 'cidal/static? | inhibits formation of initiation complex --> misreads mRNA requires O2 for uptake, so won't work against anaerobes 'cidal |
which drugs are aminoglycosides? | "Mean GNATS canNOT kill anaerobes" Gentamicin Neomycin Amikacin Tobramycin Streptomycin |
toxicity of aminoglycosides | "Mean GNATS canNOT kill anaerobes" Nephrotoxicity (esp if used with cephalosporin) Ototoxicity (esp w/ loop diuretic) Teratogen |
Uses for tetracyclines | VACUUM THe BedRoom Tunight V. cholera Acne Chlamydia Ureaplasma Urealyticum Mycoplasma pneumoniae Tularemia H. Pylori Borrelia Burgodorferi Rickettsia |
MOA tetracyclines 'cidal/static? | binds 30S and prevents attachment of aminoacyl RNA static |
foods to avoid when takin tetracyclines | don't take with milk, iron, or antacids b/c it will inhibit absorption in gut |
which tetracycline is fecally eliminated? | doxycycline (can be used in renal failure) |
toxicity of tetracyclines | photosensitivity gi discomfort discoloration of teeth inhibits bone growth in kids |
contraindications of tetracyclines | pregnancy |
what drug can act as a diuretic in SIADH | demeclocycline (ADH antagonist) |