1 doctor weighed in:

Can erythromycin affect your menstrual period on ocs?

1 doctor weighed in
Dr. Betsy Greenleaf
Gynecology

In brief: 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.

In brief: 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.
Dr. Betsy Greenleaf
Dr. Betsy Greenleaf
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