Comparative Pharmacology
Head-to-head clinical analysis: CEFDINIR versus KEFLET.
Peer-Reviewed Evidence
Head-to-head clinical analysis: CEFDINIR versus KEFLET.
CEFDINIR vs KEFLET
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Cefdinir is a third-generation cephalosporin antibiotic that inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs), thereby inhibiting peptidoglycan cross-linking, leading to cell lysis and death.
Keflet (warfarin) inhibits vitamin K epoxide reductase, preventing the recycling of vitamin K and thereby reducing the synthesis of clotting factors II, VII, IX, and X in the liver.
300 mg orally twice daily for 5-10 days, or 600 mg orally once daily for 10 days.
500 mg orally every 12 hours for 10-14 days; for uncomplicated UTI: 250 mg orally every 12 hours for 7 days.
None Documented
None Documented
Terminal elimination half-life: 1.7 ± 0.6 hours (range 1.4-2.3 h) in healthy adults; prolonged in renal impairment (e.g., up to 8 hours in end-stage renal disease).
Clinical Note
moderateCefdinir + Picosulfuric acid
"The therapeutic efficacy of Picosulfuric acid can be decreased when used in combination with Cefdinir."
Clinical Note
moderateIron sucrose + Cefdinir
"The serum concentration of Cefdinir can be decreased when it is combined with Iron sucrose."
Clinical Note
moderateIron + Cefdinir
"The serum concentration of Cefdinir can be decreased when it is combined with Iron."
Clinical Note
moderateFerric pyrophosphate + Cefdinir
0.5-1 hour; prolonged in renal impairment (up to 20-30 hours in ESRD).
Renal: 90-95% unchanged in urine via glomerular filtration and tubular secretion. Biliary/fecal: <1% biliary, <5% fecal.
Renal (80-90% unchanged via glomerular filtration and tubular secretion); biliary/fecal < 5%.
Category A/B
Category C
Cephalosporin Antibiotic
Cephalosporin Antibiotic
"The serum concentration of Cefdinir can be decreased when it is combined with Ferric pyrophosphate."