A member asked:

Prescribed amoxicillin 500mg 3xs a day for 10 days due to sinus infection. also take lo loestrin fe. how long do i need to use a backup birth control?

A doctor has provided 1 answer

Back-up not needed: Amoxicillin doesn't decrease the effectiveness of birth-control pills. A back-up method isn't needed if you are taking your birth-control pills correctly. Best Wishes!

Answered 2/28/2016

1.6k views

Thank

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