Plan B Levonorgestrel 1.5 mg Pill

Plan B is an emergency contraceptive, sometimes called the morning-after pill. It is a single 1.5 mg levonorgestrel tablet that helps prevent pregnancy after unprotected sex or a contraceptive failure, such as a broken condom or missed birth control pills. You can buy it without a prescription in Canada.

Take it as soon as possible

Plan B can be taken up to 72 hours (3 days) after unprotected sex. The sooner you take it, the better it works.

How it works

Levonorgestrel mainly works by delaying or preventing ovulation. It will not end an existing pregnancy, and it won't harm one.

Important to know

• Plan B may be less effective at higher body weights. If that applies to you, or if more than 72 hours have passed, ask a health professional about other options, such as a copper IUD, which is the most effective form of emergency contraception.
• Some medicines can reduce how well it works, including certain seizure drugs, rifampin, some HIV medicines and St. John's Wort.
• Plan B is not meant to be your regular birth control, and it does not protect against STIs.
• Your next period may come early or late. If it is more than 7 days late, take a pregnancy test.
• Get medical care right away for severe lower abdominal pain in the weeks afterwards.

Possible side effects

Nausea, tiredness, headache, breast tenderness and spotting are common and pass quickly. If you vomit within 2 hours of taking it, ask a health professional whether you need another dose.