A member asked:

Can erythromycin affect your menstrual period on ocs?

A doctor has provided 1 answer
Dr. Betsy Greenleaf answered

Specializes in Gynecology

Yes: Any medications that are processed in the liver ( which they both are) can be effected by each other. Erythromycin can decrease the effectiveness of birth control. This could lead to spotting, bleeding, and an increased risk of pregnancy.

Answered 12/27/2014

5.7k views

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