Cephalexin, an antibiotic supplied by various cephalexin suppliers, typically stays in your system for about 6 to 12 hours per dose, with a half-life of roughly 1 hour. After completing a course, it’s generally eliminated within 24 to 48 hours, primarily through urine. Factors like kidney function, age, and dosage can affect clearance time. For those sourcing the drug, choosing a reputable cephalexin supplier ensures quality and efficacy. Always consult a healthcare provider for personalized advice, especially if you have renal issues or are on other medications, to ensure safe use and clearance.