Quote from drelizabethblackburn on April 28, 2025, 12:11 am

Cephalexin, an antibiotic used to treat bacterial infections, typically stays in your system for about 8-12 hours per dose. Its half-life is approximately 1-1.5 hours, meaning it takes this time for half the cephalexin to be eliminated. After completing a course, cephalexin is generally cleared from the body within 24-48 hours, depending on kidney function, dosage, and frequency. For a 500 mg dose, cephalexin reaches peak blood levels within an hour. Healthy kidneys ensure efficient cephalexin clearance, but impaired renal function may prolong its presence. Always consult a doctor for personalized advice on cephalexin use.