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A member asked:

Will it affect my birth control if i have diarrhea 13 hours after taking it ?

A doctor has provided 1 answer

No: Birth control pills are absorbed within about 3 hours from taking them. So if your diarrhea started 13 hours later it shouldn't affect your pill. If you have diarrhea for several days, consider using a back-up method.

Answered 9/28/2016

4.1k views

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I had diarrhea three times in a 24 hour timespan, should l take another birth control pill?

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Would having one episode of diarrhea 12 hours after taking my birth control pill decrease it's effectiveness?

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I took my birth control pill at 7:50pm. I had diarrhea about 5 hours after taking my pill from what I ate that night. Does this lower my protection?

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I took my birth control pill and have diarrhea 4 hours later? Its due to another medication. Will the diarrhea make my birth control less effective? Its been 4 hours. Thanks

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Would diarrhea occurring 4 times within 12 hours after taking first active birth control pill affect its effectiveness?

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