A member asked:

Does antibiotics septra (sulfamethoxazole and trimethoprim) ds tab (g) for a bladder infection or doryx for ance cancel out the birth control larin fe 1/20?

A doctor has provided 1 answer
Dr. John Gaffney answered

Specializes in Psychiatry

Possibly: Antibiotics decrease hormonal contraceptive efficacy. Use with caution ... Hope that helps!

Answered 2/27/2015

3.2k views

Thank

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