Does anyone know if Minocycline weakens the contraceptive pill?
Yes, it does. Pretty much all antibiotics absorb the hormones in your birth control pill, thus making pregnancy much more likely. The best thing you can do in terms of pregnancy protection is to stop taking Minocycline (with your doctor’s permission). Also, use a form of barrier protection such as a condom or cervical cap. But if you do become pregnant, your baby should be fine. Neither the antibiotic nor the pill should have an effect on your unborn child.