Sometimes things do not go as planned. A condom breaks, or a regular contraceptive is forgotten. P2, also known as Postinor‑2, is an emergency contraceptive pill that can help prevent an unintended pregnancy. It works quickly and gives women a chance to take control of their reproductive health.

 What P2 (Postinor‑2) is

P2, also known as Postinor‑2, is an emergency contraceptive pill that contains the hormone levonorgestrel. It is used after unprotected sex or when a regular contraceptive method fails to reduce the chance of pregnancy. P2 is not intended for regular contraception but is a safe option in emergencies. According to the World Health Organisation, emergency contraceptive pills are effective when taken within the recommended time.

How Postinor‑2 works

Postinor‑2 works mainly by delaying or preventing ovulation, which stops the ovary from releasing an egg. If no egg is released, sperm cannot fertilise it. According to the World Health Organisation, P2 does not terminate an existing pregnancy and is not an abortion pill. It may also thicken cervical mucus and slightly alter the uterine lining, but its primary effect is preventing ovulation.

P2 is most effective when taken as soon as possible after unprotected sex. The first tablet should be taken immediately, and the second tablet 12 hours later. Both pills should be taken within 72 hours for maximum effectiveness. When taken within 24 hours, Postinor‑2 can prevent up to about 95% of pregnancies. Its effectiveness decreases if taken later and is less certain after 72 hours. According to the World Health Organisation, timely use is critical to maximise its effectiveness.

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If vomiting occurs within two hours of taking a dose, another dose may be required, and a healthcare provider should be consulted. According to the World Health Organisation, the sooner P2 is taken, the higher the chance of preventing pregnancy.

Side effects

Common side effects of P2 are mild and temporary. These may include nausea, headache, dizziness, breast tenderness, fatigue, or changes in the menstrual cycle. If your next period is more than a week late, it is advised to take a pregnancy test and consult a healthcare provider. According to the World Health Organisation, these side effects are normal and usually resolve quickly.

What you must know

P2 does not protect against sexually transmitted infections and should not replace regular contraception. Frequent use of emergency contraception is not recommended. According to the World Health Organisation, women who need ongoing contraception should consult a healthcare professional to choose a safe and reliable long-term method.

P2 (Postinor‑2) is a safe and medically approved emergency contraceptive pill. It works by preventing ovulation and is most effective when taken within 72 hours of unprotected sex. According to the World Health Organisation, it should be used only in emergencies and is not a substitute for regular contraception.