1 doctor weighed in:

How long will it take for one single 500mg cephalexin to exit the body. Not after a complete course of medication, but just after one single capsule?

1 doctor weighed in
Dr. Hunter Handsfield
Internal Medicine - Infectious Disease

In brief: A few hours

It will be gone within 12-24 hours.
But probably doesn't matter much: not likely to be harmful. Even if you're allergic to it, most severe allergic reactions start within a couple of hours, so you're probably already past any potential risk.

In brief: A few hours

It will be gone within 12-24 hours.
But probably doesn't matter much: not likely to be harmful. Even if you're allergic to it, most severe allergic reactions start within a couple of hours, so you're probably already past any potential risk.
Dr. Hunter Handsfield
Dr. Hunter Handsfield
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