Cephalexin
- TRADE NAMES: Apo-Cephalex; Biocet; Cefalexin; Ceforal; Ceporex; Ceporexine; Kefarol; Keflex (Advancis); Keftab (Biovail); Novo-Lexin; Ospexin
- INDICATIONS: Various infections caused by susceptible organisms
- SYNONYM: cefalexin
- CLASS: Antibiotic, Antimicrobial, Cephalosporin, Cephalosporin; 1st generation
- HALF-LIFE: 0.9–1.2 hours
CLINICALLY IMPORTANT, POTENTIALLY HAZARDOUS INTERACTIONS WITH:
Amikacin, Gentamicin, Metformin
PREGNANCY CATEGORY: B
Penicillin and cephalosporins share a common beta-lactam structure. People who are allergic to penicillin are approximately 4 times more likely to develop an allergic reaction to a cephalosporin than those people who have no penicillin allergy (from 5–16% of patients allergic to penicillin develop reactions to cephalosporins).
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SKIN.
HAIR.
NAILS.
CENTRAL NERVOUS SYSTEM.
ENDOCRINE/METABOLIC.
GASTROINTESTINAL/HEPATIC.
GENITOURINARY.
HEMATOLOGIC.
RENAL.
RESPIRATORY.
OTHER.
Page last updated 07/31/2023
Symbol key
Incidence
- <1%
- 1-5%
- 5-10%
- 10-15%
- 15-20%
- 20-30%
- >30%
Warnings in other populations
- Breast feeding
- Geriatric
- Pediatric