Comparative Pharmacology
Head-to-head clinical analysis: CEPHALEXIN versus FORTAZ.
Peer-Reviewed Evidence
Head-to-head clinical analysis: CEPHALEXIN versus FORTAZ.
CEPHALEXIN vs FORTAZ
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Cephalexin is a first-generation cephalosporin antibiotic that inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs), thereby inhibiting transpeptidation and disrupting cell wall cross-linking, leading to cell lysis and death.
Inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs), inhibiting peptidoglycan cross-linking, leading to cell lysis.
Oral: 250-1000 mg every 6 hours; maximum 4 g/day.
1-2 g IV/IM every 8-12 hours; maximum 6 g/day for serious infections.
None Documented
None Documented
0.5-1.2 hours in normal renal function; prolonged to 5-30 hours in severe renal impairment (CrCl <10 mL/min)
Clinical Note
moderateCephalexin + Teriflunomide
"The serum concentration of Teriflunomide can be increased when it is combined with Cephalexin."
Clinical Note
moderateCephalexin + Haloperidol
"The metabolism of Haloperidol can be decreased when combined with Cephalexin."
Clinical Note
moderateCephalexin + Probenecid
"The serum concentration of Probenecid can be increased when it is combined with Cephalexin."
Clinical Note
moderateCephalexin + Sulfisoxazole
2 hours (normal renal function); prolonged to 12-20 hours in ESRD
Renal: 80-90% unchanged by glomerular filtration and tubular secretion; biliary: <5%; fecal: <1%
Primarily renal (80-90% unchanged) via glomerular filtration and tubular secretion; 5-10% biliary/fecal
Category A/B
Category C
Cephalosporin Antibiotic
Cephalosporin Antibiotic
"The metabolism of Sulfisoxazole can be decreased when combined with Cephalexin."