Topimax Topiramate Norgestrel + Ethinyl Estradiol + Ferrous Fumarate
ModerateTopiramate may make Norgestrel + Ethinyl Estradiol + Ferrous Fumarate work less well as a contraceptive. It can speed up how fast your body clears the hormones in the pill, so they may not protect you from pregnancy as reliably. The same warning applies to antibiotics and to several other medicines, such as rifampicin, phenytoin and carbamazepine. If you take topiramate, speak to your doctor or pharmacist about using an extra contraceptive method.
These medicines are often taken together with some care. Your doctor may change a dose, space them apart or check on you more often. Make sure your doctor and pharmacist know you take both.