A member asked:

I was prescribed prometrium (micronized progesterone) for pms during days 12-26 of cycle. cycle has now been 21 days. do i stop taking it once i start menstruation?

A doctor has provided 1 answer
Dr. Jeff Livingston answered

Specializes in Obstetrics and Gynecology

Conform instructions: Progesterone can be used to help prevent PMS although daily birth control pills is a more common and likely more effective option. Bleeding for 21 days is not normal. I would see your obgyn for a follow up visit and ask if you are candidate for a 24/4 birth control pill for PMS and cycle control.

Answered 9/2/2015

2.3k views

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