U.S. doctors online nowAsk doctors free
United Kingdom
A female asked:

Does one episode of diarrhea 2 and a half hours after taking the pill lower its effectiveness? should i take an extra one? (progesterone only pill)

1 doctor answer12 doctors weighed in
Dr. Enrique Molina
Gastroenterology 37 years experience
No: not unless you see the pill coming out through the stool without being dissolved. Usually there is enough time for a pill to dissolve and be absorbed before it reaches the colon and stool comes out.
Created for people with ongoing healthcare needs but benefits everyone.
Dr. David Lipkin
Internal Medicine 54 years experience
**One note of caution. Some controlled release medications are designed to release their medications as they travel the intestines and the" shell" of the pill arrives in the stool empty(so called Ghost Pill). It will look like the pill you swallowed, but it will be empty. S
Oct 21, 2016
Last updated Oct 25, 2016

Disclaimer:

Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.