Comparative Pharmacology
Head-to-head clinical analysis: CHLORAMPHENICOL versus SEPTRA DS.
Peer-Reviewed Evidence
Head-to-head clinical analysis: CHLORAMPHENICOL versus SEPTRA DS.
CHLORAMPHENICOL vs SEPTRA DS
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 DS is a combination of trimethoprim and sulfamethoxazole. Trimethoprim inhibits bacterial dihydrofolate reductase, while sulfamethoxazole inhibits dihydropteroate synthase, sequentially blocking folate synthesis and ultimately DNA synthesis in susceptible bacteria.
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.
One DS tablet (800 mg sulfamethoxazole/160 mg trimethoprim) orally every 12 hours for 10-14 days.
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; sulfamethoxazole: 10-12 hours (prolonged in renal impairment, e.g., creatinine clearance <30 mL/min increases half-life to >20 hours).
~90% renal (5-10% unchanged; remainder as inactive glucuronide), ~10% biliary/fecal
Renal excretion of unchanged drugs accounts for 50-70% of trimethoprim and 20-30% of sulfamethoxazole; biliary excretion is minor (<10% total).
Category D/X
Category C
Antibiotic
Antibiotic
"The metabolism of Ticlopidine can be decreased when combined with Chloramphenicol."