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Pharmacology
Antibacterials
25
Medical
Professional
05/07/2009

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Cards

Term
Tetracyclines
Definition
30s ribosomal bacteriostatics; anaerobes, rickettsia, chlamydia, mycoplasmas; complete cross-resistance; absorption impaired by dairy, iron, calcium; GI effects, photosensitivity, superinfections, renal toxicity, bone/teeth;
Term
Chloramphenicol
Definition
50s ribosomal bacteriostatic; gram negative bacts (H. influenzae, salmonella, neisseria, B. fragilis); gray baby syndrome, ir/reversible anemias;
Term
Aminoglycosides
Definition
30s ribosomal bacteriostatic; extracellular space; serious gram negative bacts (E. coli, klebsiella, proteus, enterobacter, pseudomonas); IV; neuro-/nephro-toxicity, neuromuscular block; inactivates penicillins/other nephrotoxins;
Term
Macrolides
Definition
50s ribosomal bacteriostatics; upper respiratory (bordetella, legionella, chlamydiae, mycoplasma, rickettsia); GI irritation, P450(CYP) metabolism; clarithromycin (PLUS mycobacterium avium, H. pylori); azithromycin (AND H. influenzae, chlamydiae)
Term
Sulfasoxazole
Definition
PABA congener; short t1/2, very soluble, NO CSF; uncomplicated UTI
Term
Sulfamethoxazole
Definition
PABA congener; short t1/2, more risk of crystalluria
Term
Sulfadiazine
Definition
PABA congener; highest [CSF]; brisk, alkaline urine to prevent crystalluria
Term
Sulfasalazine
Definition
PABA congener; poorly absorbed prodrug, good for bowel; anti-inflammatory; possible systemic toxicity
Term
Silver sulfadiazine
Definition
PABA congener; anti-fungal/bacterial; topical, serious burns
Term
Sulfacetamide sodium
Definition
PABA congener; eye drop/topical; chlamydia; neutral at [high]
Term
Sulfonamides
Definition
acetylated in liver; require renal monitoring; crystalluria risk; hypersensitivity (Stevens-Johnson syndrome);
Term
Trimethoprim-Sulfamethoxazole
Definition
PABA congener AND tetrahydrofolate inhibitor; anti-fungal/bacterial; 12 organisms (gram negative rods, actinomycetes, parasites, Pneumocytis jirovecii); AIDS infections; harder to resist (2 drugs); glossitis, crystalluria, hypersensitivity, folate deficiency
Term
Methanamine
Definition
ammonia, formaldehyde; pH<5.5; no resistance; gastric/liver effects; crystalluria with sulfa; gout with organic acid;
Term
Nitrofurantoin
Definition
toxic by-products; uncomplicated UTI; enterococcus, e. coli; GI effects, pulmonary/hepato-toxicity, neuropathy, brown urin
Term
Fosfomycin
Definition
blocks cell wall peptidoglycans; single dose = 3 days; gram negative, NOT pseudomonas;
Term
Phenazopyridine
Definition
analgesic; urine excretion; stains
Term
Ciprofloxacin
Definition
1st gen. fluoroquinolone; bacteriacidal, topoisomerase II, IV; NO spirochetes, anaerobes; oral admin, safe;
Term
Lomefloxacin
Definition
1st gen. fluoroquinolone; once daily; bronchitis, pneumococci;
Term
Second generation fluoroquinolones
Definition
oral once daily; gemi-/levo-/moxi-floxacin
Term
Isoniazid
Definition
TB, prophylaxis; peripheral neuritis, hepatitis
Term
Rifampin
Definition
TB; jaundice, red-orange secretions, hepatic effects
Term
Ethambutol
Definition
TB; visual acuity effects, gout
Term
Streptomycin, Pyrazidimine
Definition
TB; liver necrosis, gout, GI effects
Term
Clindamycin
Definition
alternate to penicillin, anaerobic infections
Term
Vancomycin
Definition
kills methicillin resistant staph
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