Antimicrobials Flashcards
DOC for herpes and its MOA
Acyclovir; activates thymidine kinase
Neurotoxicity with isoniazid (INH) prevented by
Administration of Vit. B6 (pyridoxine)
Cheap wide spectrum antibiotic DOC of otitis media
Amoxicillin
Drug of choice for Legionnaires’ disease
Azithromycin (or macrolides)
HIV med used to reduce transmission during birth
AZT (zidovudine)
Lactam that can be used in PCN allergic patients
Aztreonam
MOA of nystatin
Bind ergosterol in fungal cell membrane
Vancomycin MOA
Binds D-Ala-D-Ala on murein monomers and prevent polymerization of the murein monomers
MOA of penicillin
Block cell wall synthesis by inhibiting transpeptidase and block peptidoglycan cross-linkage
PCN active against pseudomonas
Carbenicillin, piperacillin and ticarcillin
Reason fluoroquinolones are contraindicated in children and pregnancy
Cartilage damage
Cephalosporins able to cross the BBB
Cefixime (2nd) and 3rd generation
DOC for N. gonorrhea
Ceftriaxone
Cephalosporin causes kernicterus in neonates
Ceftriaxone or cefuroxime
Class of antibiotics that have 10% cross sensitivity with penicillins
Cephalosporins
Drug that causes gray baby syndrome and aplastic anemia
Chloramphenicol
Drug notorious for causing pseudomembranous colitis
Clindamycin
Drug of choice for leprosy
Dapsone
Mechanism of action of tetracycline
Decreases protein synthesis by binding to 30S ribosome and prevent binding of tRNA to A site
Antivirals that are teratogens
Delavirdine, efavirenz, and ribavirin
Anti-viral with a dose limiting toxicity of pancreatitis
Didanosine
Metronidazole SE if given with alcohol
Disulfiram-like reaction
Antibacterials for optimal treatment of acute pyelonephritis
Fluoroquinolones (ciprofloxacin, levofloxacin), trimethoprim-sulfamethoxazole
DOC for CMV retinitis
Ganciclovir
Antivirals associated with neutropenia
Ganciclovir, zidovudine, saquinavir, and interferon
SE seen only in men with administration of ketoconazole
Gynecomastia
MOA of sulfonamides
Inhibit dihydropteroate synthase
MOA of fluoroquinolones
Inhibit DNA gyrase (topoisomerase II) and topoisomerase IV
Mechanism of action of macrolides (erythromycin, clarithromycin)
Inhibit protein synthesis by binding to domain V of 23S rRNA of 50S ribosome subunit
Anemia caused by trimethoprim
Megaloblastic anemia
Penicillins active against penicillinase secreting bacteria
Methicillin, nafcillin, and dicloxacillin
Drug of choice for tx of pseudomembranous colitis
Metronidazole
DOC for giardia, bacterial vaginosis, pseudomembranous colitis, and trichomonas
Metronidazole
Oral antibiotic of choice for moderate inflammatory acne
Minocycline
SE for ganciclovir
Myelosuppression
Two toxicities of aminoglycosides
nephro and ototoxicity
Toxicity of amphotericin
Nephrotoxicity
Anti-viral agents associated with Stephen Johnson syndrome
Nevirapine, amprenavir
Drug used in Chagas disease
Nifurtimox
Antibacterials for optimal treatment of acute uncomplicated cystitis
Nitrofurantoin, trimethoprim-sulfamethoxazole, fosfomycin
Treatment of resistant pseudomembranous colitis
ORAL vancomycin
Common side effect of Rifampin
Orange urine discoloration
DOC for influenza A and B
Oseltamivir or Zanamivir
SE of INH
Peripheral neuritis and hepatitis
Type of resistance found with vancomycin
Point mutation
Drug used in exoerythrocytic cycle of malaria
Primaquine
HIV antiviral class known to have severe drug interactions by causing inhibition of metabolism
Protease inhibitors
DOC for RSV
Ribavirin
Meningitis prophylaxis in exposed patients
Rifampin
Treatment for TB patients (think RIPE)
Rifampin, Isoniazid, Pyrazinamide, and Ethambutol
Technique used to diagnose perianal itching, and the drug used to treat it
Scotch tape technique and mebendazole
SE of imipenem
Seizures
Aminoglycoside that is least ototoxic
Streptomycin
Anti-bacterials that cause hemolysis in G6PD-deficient patients
Sulfonamides
Drug used for African sleeping sickness
Suramin
Drug causes teeth discoloration
Tetracycline
Topical DOC in impetigo
Topical mupirocin (Bactroban)
Drug used for MRSA
Vancomycin
Antibiotic causing red-man syndrome, and prevention
Vancomycin, can be prevented by infusion at a slow rate and antihistamines