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ADRs & Indications
Misc. adverse drug reactions & Indications
Question | Answer |
---|---|
Aminoglycosides (Gentamicin, Tobramycin, Amikacin) | Ototoxicity & Nephrotoxicity |
Vancomycin | “Red Man Syndrome” |
Sulfonamides | Stevens-Johnson (erythema multiforme) |
Metronidazole | metallic taste and disulfiram-like reaction (antabuse) |
Fluoroquinolones | Cartilage toxicity; C/I in PEDS (<18 yo)- Preg. Categ C |
Erythromycin & Clarithromycin | IV, high conc., and/or combo with other QT prolonging drugs (e.g. pimozide, astemizole, terfenadine) → can result in fatal arrhythmias |
Chloramphenicol | majorly fatal APLASTIC ANEMIA (rare but fatal); C/I in INFANTS (gray baby synd) |
Tetracyclines | Yellowing of the teeth & impaired bone growth; Preg. Categ. D |
Rifampin and Clofazimine | reddened urine |
Ethambutol | red-green color blindness |
Isoniazid (INH), Dapsone, Sulfonamides, Nitrofurantoin "I-So Dang Sleepy Now" | cause Hemolytic Anemia (esp. in G6PD deficient pts) |
Erythromycin, clarithromycin & ketoconazole | - inhibit P-450 enzymes |
Rifampin | induces P-450 enzymes |
I have complete renal failure and I’m allergic to penicillin. Now what can I take for my infection? | Macrolides Rifampin (antimycobacterial) Clofazimine (for Mycobacterium species) |
Abx NOT renally adjusted | NafcillinOxacillinTigecyclineClindamycinLinezolidAzithromycinRocephinDoxycycline |
Ceftriaxone, Macrolides (except Clarithromycin), Penicillins, Moxifloxacin (only fluoroquin) | |
All macrolides (do/do not) require renal adjustment EXCEPT...? | All do NOT require renal adjustment EXCEPT Clarithromycin |
All cephalosporins (do/do not) require renal adjustment EXCEPT...? | All DO require renal adjustment EXCEPT Ceftriaxone |
Ceftriaxone is the only cephalosporin that (does or does not) req. renal adjustment? | Does NOT require renal adjustment |
Clarithromycin is the only macrolide that (does or does not) req. renal adjustment? | DOES require renal adjustment |
"Cef is Safe!" | i.e. Ceftriaxone does not require renal adjustment |
Common alternative for pencillin allergy | Clindamycin |