Plan B® One-Step is a progestin-only emergency contraceptive indicated for prevention of pregnancy following unprotected intercourse or a known or suspected contraceptive failure. To obtain optimal efficacy, the tablet should be taken as soon as possible within 72 hours of intercourse.
Plan B One-Step is available only by prescription for women younger than age 17 years, and available over the counter for women 17 years and older.
Plan B One-Step is not indicated for routine use as a contraceptive.
The Plan B One-Step tablet contains 1.5 mg of a single active steroid ingredient, levonorgestrel [18,19-Dinorpregn-4-en-20-yn-3-one-13-ethyl-17-hydroxy-, (17 α)-(-)-], a totally synthetic progestogen. The inactive ingredients are colloidal silicon dioxide, corn starch, lactose monohydrate, magnesium stearate, potato starch, and talc.
Levonorgestrel has a molecular weight of 312.45, and the following structural and molecular formulas:
Take Plan B One-Step orally as soon as possible within 72 hours after unprotected intercourse or a known or suspected contraceptive failure. Efficacy is better if the tablet is taken as soon as possible after unprotected intercourse. Plan B One-Step can be used at any time during the menstrual cycle.
If vomiting occurs within two hours of taking the tablet, consideration should be given to repeating the dose.
The sooner you take emergency contraception, the better it works. You should use Plan B One-Step® within 72 hours (3 days) after you have had unprotected sex.
Take Plan B One-Step orally as soon as possible within 72 hours after unprotected intercourse or a known or suspected contraceptive failure. Efficacy is better if the tablet is taken as soon as possible after unprotected intercourse. Plan B One-Step can be used at any time during the menstrual cycle.
If vomiting occurs within two hours of taking the tablet, consideration should be given to repeating the dose.
The sooner you take emergency contraception, the better it works. You should use Plan B One-Step® within 72 hours (3 days) after you have had unprotected sex.
Plan B One-Step® is a backup or emergency method of birth control you can use when:
your regular birth control was used incorrectly or failed
you did not use any birth control method
The sooner you take emergency contraception, the better it works. You should use Plan B One-Step® within 72 hours (3 days) after you have had unprotected sex.
Plan B One-Step® is a backup or emergency method of birth control you can use when:
your regular birth control was used incorrectly or failed
you did not use any birth control method