A member asked:

I took cephalexin, 4 pills a day (for 10 days). i am 2 days late for my period, and i've never had sex before. is it the antibiotics?

A doctor has provided 1 answer

Dr. Brian Nguyen answered

Specializes in Obstetrics and Gynecology

Not the Antibiotics: They only antibiotic known to affect the metabolism of your hormones is rifampin. Cephalexin is totally safe. Sometimes periods can be a few days late, just give it time.If you wait more than a week and don't get a period, only then would i worry.

Answered 6/24/2014

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A member asked:

I took cephalexin, 4 pills a day (for 10 days). i am 2 days late for my period, and i've never had sex before. is it the antibiotics?

A doctor has provided 1 answer

Dr. Brian Nguyen answered

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