A member asked:

I have chronic constipation and take laxatives on a regular basis. can this lower the effectiveness of oral birthcontrol?

A doctor has provided 1 answer
Dr. Jay Park answered

Very unlikely: The metabolism of oral contraceptives is accelerated and resultant decreased efficacy is expected by any drug that increases liver microsomal enzyme activity such as phenobarbital, phenytoin, griseofulvin, and rifampin.

Answered 8/9/2014

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