Antibiotics Flashcards
bacteriostatic
inhibits a metabolic pathway
bactericidal
outright kills bacteria via lysis
sulfonamide mechanism
inhibits dihydropteroate synthesis
sulfonamide contraindication
pregnancy
sulfonamide synergizes with
DHFR inhibitor
sulfisoxazole w/erythromycin
oral SULF for otitis media
sulfamethoxazole w/trimethoprim
oral SULF for urinary, respiratory, and GI infections
dapsone
oral SULF for leprosy and pneumonia
sulfacetamide
topical SULF for ulcerative blepharitis and bacterial conjunctivitis
silver sulfadiazine
topical SULF for burns and preventing sepsis
mafenide
topical SULF for burns
crystalluria
crystals in urine (SULF SE)
kernicterus
bilirubin encepalopathy (SULF SE)
blood discrasias
SULF SE
hypersensitivity
SULF SE
erythema multiforme
asymptomatic macules on extremities
Stevens-Johnson Syndrome
blisters in airway/mouth
Rx fever
hypersensitivity
hyperkalemia
high potassium
fluoroquinolone mechanism (G-)
inhibits DNA gyrase
fluoroquinolone mechanism (G+)
inhibits topoisomerase IV
cirpofloxacin
2nd gen FQ for anthrax [decreases theophylline clearance, inhibits CYP3A4/CYP1A2]
ofloxacin
2nd gen FQ [avoid if bacterial resistance or liver disease]
gatifloxacin
3rd gen FQ [avoid if pt has diabetes]
gemifloxacin
3rd gen FQ for chronic bronchitis and pneumonia
levofloxacin
3rd gen FQ [avoid if cardiac conduction anomalies]
motifloxacin
3rd gen FQ [avoid if hepatic disease]
besifloxacin
4th gen FQ for bacterial conjunctivitis
finafloxacin
4th gen FQ for otitis externa
phototoxicity
burning, redness, swelling, blisters, rash (FQ SE)