Cephalexin
Generic Name: cephalexin
Brand Names:
Cephalexin
Cephalexin is a semisynthetic cephalosporin antibacterial drug for oral administration. Indicated for treatment of infections caused by susceptible bacteria including respiratory tract, otitis media, skin and skin structure, bone, and genitourinary tract infections.
Overview
Cephalexin is a semisynthetic cephalosporin antibacterial drug for oral administration. Indicated for treatment of infections caused by susceptible bacteria including respiratory tract, otitis media, skin and skin structure, bone, and genitourinary tract infections.
Uses
Treatment of respiratory tract infections, otitis media, skin and skin structure infections, bone infections, and genitourinary tract infections caused by susceptible bacteria.
Dosage
Adults 15 years and older: 250 mg every 6 hours or 500 mg every 12 hours. Pediatrics over 1 year: 25-100 mg/kg in divided doses. Duration: 7-14 days.
Side Effects
Most common: diarrhea, nausea, vomiting, dyspepsia, abdominal pain. Serious: anaphylaxis, Stevens-Johnson syndrome, C. difficile-associated diarrhea.
Interactions
Metformin: increased concentrations. Probenecid: inhibits renal excretion. False-positive glucose in urine with certain tests.
Warnings
Hypersensitivity reactions possible. C. difficile-associated diarrhea reported. Hemolytic anemia risk. Seizure potential in renal impairment. Prolonged prothrombin time risk. Contraindicated in patients with known hypersensitivity to cephalexin or cephalosporin class antibacterial drugs.
Pregnancy
Available epidemiologic data not establishing drug-associated risks of birth defects or miscarriage with cephalosporin use including cephalexin.
Storage
Store at 20-25 degrees C (68-77 degrees F). Dispense in tight, light-resistant container.
Frequently Asked Questions
What is Cephalexin used for?▼
Treatment of respiratory tract infections, otitis media, skin and skin structure infections, bone infections, and genitourinary tract infections caused by susceptible bacteria.
What are the side effects of Cephalexin?▼
Most common: diarrhea, nausea, vomiting, dyspepsia, abdominal pain. Serious: anaphylaxis, Stevens-Johnson syndrome, C. difficile-associated diarrhea.
Can I take Cephalexin during pregnancy?▼
Available epidemiologic data not establishing drug-associated risks of birth defects or miscarriage with cephalosporin use including cephalexin.
What are the important warnings for Cephalexin?▼
Hypersensitivity reactions possible. C. difficile-associated diarrhea reported. Hemolytic anemia risk. Seizure potential in renal impairment. Prolonged prothrombin time risk. Contraindicated in patients with known hypersensitivity to cephalexin or cephalosporin class antibacterial drugs.
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Medical Disclaimer
This drug information is for educational purposes only and should not replace professional medical advice. Drug information is sourced from the FDA National Drug Code Directory and Structured Product Labeling. Always consult with a healthcare provider before starting, stopping, or changing any medication.