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Causes of diarrhea: menstruation


About a third of women experience diarrhea around the time of their period. So, if you’re one of them, rest assured it’s totally normal.12

Although it’s not fully understood, it’s believed that the hormonal changes taking place during your period are the cause of menstrual-related diarrhea.

In particular, the culprit could be a chemical called prostaglandin, which is released during menstruation. Prostaglandin causes the muscles in your bowels to contract and this may lead to diarrhea and stomach pain when you get your period.14

How to manage it

If you suffer from diarrhea during your period, there are several things you can do to manage your condition.

Read our tips for managing menstrual-related diarrhea

How to treat diarrhea

If your periods give you regular acute episodes of diarrhea, you can treat it every time. IMODIUM™ works in harmony with your body to help it get back to its natural rhythm, gently restoring the normal pace of your digestive system. You needn’t worry that you might come to rely on IMODIUM™ or become resistant to its efficacy, as there’s no medical evidence at all to suggest this might happen. 

If symptoms persist, consult your doctor. ASC Ref. Codes J141P110818I, J197P110718I

Find out more about IMODIUM™

Click here for references.

Bad time of month?

Find ways to lessen the symptoms of your menstrual cycle.

IMODIUM™ capsules have been a trusted remedy in helping to restore your body’s natural rhythm for more than 40 years.
Doctor recommended Imodium™ gives fast and effective relief; it can stop diarrhea in just one dose and in just one hour.