The minipill norethindrone is an oral contraceptive that contains the hormone progestin It works by preventing the release of eggs from the ovaries (ovulation) and changing the cervical mucus and the lining of the uterus Oral contraceptives are medicines used to prevent pregnancy
These medicines also are called birth control pills Progestin is a female hormone When you use it for birth control, progestin works by preventing ovulation (when your ovaries release an egg) and changing your cervical mucus to make it harder for sperm to reach an egg.
The most common progesterone mini pill side effects include headache, nausea, acne, vomiting, irregular bleeding, hair thinning, mood fluctuations, weight gain or loss, changes in libido and ovarian cysts
