Head-to-head comparisons of medication uses, side effects, warnings, and more.
Key takeaways
Norethindrone acetate (Aygestin) and medroxyprogesterone (Provera) are both progestins used to treat menstrual issues, but they have some key differences. Norethindrone acetate is used to treat absent menstrual periods, abnormal vaginal bleeding, and endometriosis, while medroxyprogesterone is used for absent or irregular periods and to protect the uterus from damage in postmenopausal women taking estrogen replacement therapy. Both medications are available in generic form. Norethindrone acetate is typically taken once daily every day, while medroxyprogesterone is also taken daily but only for a certain number of days each month. Both medications can cause side effects like breakthrough bleeding and headaches, but medroxyprogesterone has additional risks when taken with estrogen replacement therapy, such as a higher chance of blood clots and breast cancer.
Norethindrone acetate (Aygestin)
Medroxyprogesterone (Provera)
Norethindrone acetate (Aygestin)
Medroxyprogesterone (Provera)
Summary of Aygestin vs. Provera
Summary for Progestin
Prescription only
Norethindrone acetate (Aygestin) is a progestin, a man-made version of the hormone progesterone. It's used to balance out hormone levels to treat absent menstrual bleeding (periods) and abnormal vaginal bleeding in adults. Norethindrone acetate (Aygestin) can also help with endometriosis. The dosage can differ depending on what condition you have, but norethindrone acetate (Aygestin) is usually taken by mouth once a day. Side effects include breakthrough bleeding and headaches. Brand name Aygestin has been discontinued and norethindrone acetate is only available as a generic.
Summary for Progestin
Prescription only
Medroxyprogesterone (Provera) can help make your menstrual cycles more regular. It also helps protect the uterus from harm in people who've gone through menopause and are taking estrogen replacement medications. When taken with estrogen therapy, it has some serious risks that you should consider if you need treatment for a long time.