m eighteen and recently got my wisdom teeth taken out so I had to take anti-biotics for a week and the doctor told me if would interfere with my oral contraceptives, Sprintec (
norgestimate and ethinyl estradiol tablets, 0.250 mg/0.035 mg). I got the antibiotics at the same time as I started my new pack of birth control and took them both for the first week of my cycle, and I used protection until the next week when my antibiotics ran out (because, of course, things happen).