Pharma Antibiotics Flashcards
CHON synthesis inhibitor at 50s subunit used in meningitis because it crosses BBB
Chloramphenicol
Only macrolide that doesn’t inhibit CYP450
Azithromycin
Also has highest Vd and slowest elimination
Bacteriostatic drug that binds to 50s subunit that causes serotonin syndrome as an adverse effect
Linezolid
Most important drug in TB; inbihit mycolic acid synthesis
Isoniazid
Bactericidal antibiotics
Vancomycin Fluoroquinolones Penicillins Aminoglycosides Metronidazole
Most vestibulotoxic and nephrotoxic aminoglycosides
Tobramycin
Gentamycin
Aminoglycoside for drug redistant gonorrhea
Spectinomycin
Antimycobacterial that inhibit arabinosyl transferase
Ethambutol
3rd gen cephalosporins with disulfiram reaction
Cefoperazone
Most ototoxic aminoglycoside
Kanamycin
Amikacin
Ototoxicity in aminoglycosides is aggravated when used with?
Loop diuretics
Cisplatin
Bacteriostatic inhibitors of folic acid synthesis by competitively inhibiting dihydropteroate synthase
Sulfonamides
Cardiotoxic 3rd gen fluoroquinolone
Grepafloxacin
Action of rifampicin
Inhibit DNA dependent RNA polymerase
Fluoroquinolones block bacterial DNA synthesis by inhibiting ____________ in gram negative organisms and _____________ in gram positive organisms
Topoisomerase II (DNA gyrase)
Topoisomerase IV
Antimetabolite class of drug that blocks D-Ala incorporation into the pentapeptide chain of Peptidoglycan
Cycloserine
2nd line drug for MDR TB
Aminoglycosides with the narrowest therapeutuc window
Amikacin
Penicillin class for staph infection that is resistant to B-lactamase inhibition
Methicillin
Nafcillin
Oxacillin
Cloxacillin
Most hepatotoxic anti-TB drug? cidal or static?
Pyrazinamide
Bacteriostatic but can be bactericidal on actively dividing mycobacteria
Drug MOA is inhibition by binding to thr D-Ala-D-Ala terminus of nascent peptidoglycan
Vancomycin
Used in sulfone resistant leprosy? MOA?
Clofazimine
Binds to guanine bases in bacterial DNA
MOA of Flucytosine
Inhibit thimidylate synthase