Print By Mayo Clinic Staff Request an appointment About July 02, 2024 Print Show references Turok D. Emergency contraception. https://www.uptodate.com/contents/search. Accessed Jan. 29, 2024. American College of Obstetricians and Gynecologists. Practice Bulletin #152: Emergency contraception. Obstetrics & Gynecology. 2015;126:e1. Reaffirmed 2022. FAQs: Emergency contraception. American College of Obstetricians and Gynecologists. https://www.acog.org/womens-health/faqs/emergency-contraception. Accessed Jan. 29, 2024. Emergency contraception. Office on Women's Health. https://www.womenshealth.gov/a-z-topics/emergency-contraception. Accessed Jan. 29, 2024. Ella (prescribing information). HRA Pharma; 2021. https://www.ella-now.com/hcp/. Accessed Jan. 29, 2024. Related Plan B One-Step Products & Services A Book: Mayo Clinic Guide to a Healthy Pregnancy Morning-after pillAbout PRC-20394718 Patient Care & Health Information Tests & Procedures Morning-after pill