Progestin agonist / antagonists block the effects of the hormone progesterone. They're used as emergency contraception, because the prevent ovulation and may also prevent a fertilized egg from implanting in the uterus. Ulipristal (Ella) is one example.
Prices for popular Progestin Agonist/Antagonists medications
ULIPRISTAL can prevent pregnancy. It should be taken as soon as possible in the 5 days (120 hours) after unprotected sex or if you think your contraceptive didn't work. It belongs to a group of medications called emergency contraceptives. It does not prevent HIV or other sexually transmitted infections (STIs).
Disclaimer: Popularity is based on total prescriptions for the brand and generic versions of each drug, regardless of the condition being treated. Some drugs are prescribed for multiple conditions.
Subscribe and save
Get prescription saving tips and more from GoodRx Health. Enter your email to sign up