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A member asked:

Can ampicillin affect birthcontrol pill effectiveness?

A doctor has provided 1 answer
Dr. Hunter Handsfield answered

Specializes in Infectious Disease

In theory, various antibiotics can reduce the effectiveness of hormonal contraception. However, this occurs extremely rarely. There is little if any risk; I wouldn't worry about it.

Dr Davantzis and another doctor agreed

Answered 6/27/2021

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