A large number of antibiotics can lessen the effects of the pill, however there is no concrete evidence that they effect everyone in this way and it is important to remember that every body is different. But on the whole, antibiotics such as penicillin, amoxycillin, metronidazole, ofloxacin, etc have been found to decrease the effectiveness of Birth Control. Some antibiotics, like fluconazole and trimethoprim have no effect on it.
There are no known drug interactions between metronidazole vaginal cream and the birth control pill. However, you should not rely on condoms while using metronidazole vaginal cream.
Can birth control be ineffective while taking metronidazole?
does metronidazole affect the contraceptive injection? im on penicillin the same time aswell but my health clinic said penicillin doesnt affect the injection? is this right? :/
Penicillin does not affect birth control.
Asprin doesn't affect birth control.
Augmentin does not affect how well the birth control pill works.
Cortisone does not affect how well the birth control pill works.
Antibiotics rarely affect the birth control pill in general.
I can't think of any way that glass would affect birth control.
No, clindamycin topical for acne does not affect the birth control pill
Caffeine does not affect how well birth control works. Thank goodness!
Check with your doctor as to the effectiveness of your birth control when used in conjunction with other medications. Reduced effectiveness may be seen in some cases.