Comparative Pharmacology
Head-to-head clinical analysis: CHLORAMPHENICOL versus SEPTRA GRAPE.
Peer-Reviewed Evidence
Head-to-head clinical analysis: CHLORAMPHENICOL versus SEPTRA GRAPE.
CHLORAMPHENICOL vs SEPTRA GRAPE
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Inhibits bacterial protein synthesis by binding to the 50S ribosomal subunit, preventing peptide bond formation.
Septra Grape (trimethoprim/sulfamethoxazole) inhibits bacterial folic acid synthesis via sequential blockade: sulfamethoxazole inhibits dihydropteroate synthase, and trimethoprim inhibits dihydrofolate reductase, leading to bactericidal activity.
50-100 mg/kg/day IV divided every 6 hours (not to exceed 4 g/day); for susceptible severe infections, 12.5-25 mg/kg IV every 6 hours.
160 mg trimethoprim / 800 mg sulfamethoxazole (1 double-strength tablet) orally every 12 hours.
None Documented
None Documented
1.5-4.0 hours in adults; prolonged to 3-7 hours in neonates and up to 24 hours in severe hepatic impairment
Clinical Note
moderateChloramphenicol + Fluconazole
"The metabolism of Fluconazole can be decreased when combined with Chloramphenicol."
Clinical Note
moderateChloramphenicol + Clotrimazole
"The metabolism of Clotrimazole can be decreased when combined with Chloramphenicol."
Clinical Note
moderateChloramphenicol + Ketoconazole
"The metabolism of Ketoconazole can be decreased when combined with Chloramphenicol."
Clinical Note
moderateChloramphenicol + Ticlopidine
Trimethoprim: 8-10 hours (renal impairment >24h). Sulfamethoxazole: 10-13 hours (acetylation phenotype; prolonged in renal impairment). Clinical: Dosing interval generally 12h; adjust CrCl <30 mL/min.
~90% renal (5-10% unchanged; remainder as inactive glucuronide), ~10% biliary/fecal
Renal: 50-70% unchanged (trimethoprim), 30-50% as N-acetyl metabolite; sulfamethoxazole: 70-80% as metabolites, 20-30% unchanged; biliary excretion minimal (<5% total).
Category D/X
Category C
Antibiotic
Antibiotic
"The metabolism of Ticlopidine can be decreased when combined with Chloramphenicol."