Norethindrone is a form of progesterone, a female hormone important for regulating ovulation and menstruation.
Norethindrone is used for birth control (contraception) to prevent pregnancy.
Norethindrone is also used to treat menstrual disorders, endometriosis, or abnormal vaginal bleeding caused by a hormone imbalance.
Not all brands of  norethindrone are for the same uses. Some brands are for use only as contraception. Others are for use in treating endometriosis or vaginal bleeding disorders. Avoid medication errors by using only the brand, form, and strength your doctor prescribes.
Norethindrone may also be used for other purposes not listed in this medication guide.
