precautionBefore taking norethindrone,
tell your doctor and pharmacist if you are allergic to norethindrone, oral contraceptives ('birth control pills'), or any other medications.
tell your doctor and pharmacist what prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking. Be sure to mention medications for seizures such as carbamazepine (Tegretol),phenobarbital (Luminal, Solfoton), and phenytoin (Dilantin); and rifampin (Rifadin, Rimactane). Your doctor may need to change the doses of your medications or monitor you carefully for side effects.
tell your doctor if you have recently had surgery or have been unable to move around for any reason and if you have or have ever had breast cancer; unexplained vaginal bleeding; a missed abortion (a pregnancy that ended when the unborn child died in the uterus but was not expelled from the body); blood clots in your legs, lungs, brain, or eyes; stroke or mini-stroke; coronary artery disease (clogged blood vessels leading to the heart); chest pain; a heart attack; thrombophilia (a condition in which the blood clots more easily); seizures; migraine headaches; depression; asthma; high cholesterol; diabetes; or heart, kidney, or liver disease.
tell your doctor if you are pregnant, plan to become pregnant, or are breast-feeding. If you become pregnant while taking norethindrone, call your doctor immediately. Norethindrone should never be used to test for pregnancy.
if you are having surgery, including dental surgery, tell the doctor or dentist that you are taking norethindrone.
tell your doctor if you smoke cigarettes. Smoking may increase the risk that you will develop serious side effects of norethindrone.
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