About Plan B One-Step®

Plan B One-Step® (levonorgestrel) 1.5 mg tablet is an emergency contraceptive that helps prevent pregnancy when taken within 72 hours (3 days) after birth control failure or unprotected sex. It must be taken as soon as possible after intercourse. The sooner it is taken, the better it works.

Plan B One-Step® contains levonorgestrel, a hormone that has been used in many birth control pills for several decades—just at a higher dose. It is a backup method of helping to prevent pregnancy and should not be used as regular birth control, because it is not as effective.

Plan B One-Step® is:

Accessible—the first FDA-approved emergency contraceptive to be available over the counter. It can usually be found in the feminine care aisle at many retail stores when your patient needs it—without a prescription or ID, and with no age restriction.

Generally safe and effective—when taken as directed, Plan B One-Step® helps prevent about 7 out of 8 potential pregnancies. Side effects may include menstrual changes, nausea, lower stomach (abdominal) pain, tiredness, headache, dizziness, breast tenderness, and vomiting.

Recommended—the #1 OB/GYN recommended emergency contraceptive brand.1*

Established— the brand of emergency contraception millions of women have chosen.3

*Survey of 1000 OB/GYNs, February 2016.
Plan B One-Step® is not:
  • It is NOT an abortion pill—it will not work if a woman is already pregnant and will not affect an existing pregnancy
  • It is not to be used as regular birth control, because it is not as effective. It is a backup method of emergency contraception
  • It does not protect against HIV/AIDS or other sexually transmitted infections (STIs)
  • It is not to be used if a patient is allergic to levonorgestrel or any other ingredients in
    Plan B One-Step®
Next: WHY DISCUSS PLAN B ONE-STEP® With Your Patients?

Did you know?

Each year, nearly 1 in 4 women in the United States experiences birth control failure or has unprotected sex.4

Helpful Resources >

Additional information and materials for your patients and staff.

Possible Side Effects

Help patients understand what they might expect.