What other drugs will affect ethinyl estradiol and norgestimate?
Some drugs can make ethinyl estradiol and norgestimate less effective, which may result in pregnancy. Before using ethinyl estradiol and norgestimate, tell your doctor if you are using any of the following drugs: • phenylbutazone (Azolid, Butazolidin); • St. John’s wort; • an antibiotic; • seizure medicines such as phenytoin (Dilantin), carbamazepine (Tegretol), oxcarbazepine (Trileptal), topiramate (Topamax), and others; • a barbiturate such as amobarbital (Amytal), butabarbital (Butisol), mephobarbital (Mebaral), secobarbital (Seconal), or phenobarbital (Luminal, Solfoton); or • HIV medicines such as amprenavir (Agenerase), atazanavir (Reyataz), indinavir (Crixivan), saquinavir (Invirase), fosamprenavir (Lexiva), ritonavir (Norvir), and others. This list is not complete and there may be other drugs that can affect birth control pills. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs pres
