Levonorgestrel – What It Is and How to Use It Safely

If you’ve ever needed a backup plan after unprotected sex, chances are you’ve heard of levonorgestrel. It’s the hormone behind many over‑the‑counter emergency contraceptive pills. In plain terms, levonorgestrel stops an egg from implanting in the uterus if it’s taken soon enough.

Most people take a single 1.5 mg dose or split it into two 0.75 mg tablets taken 12 hours apart. The sooner you pop the pill after intercourse, the better it works – up to 95% effective within the first 24 hours and still about 85% at 72 hours.

How Levonorgestrel Works

The hormone mimics a natural progesterone surge that would happen later in your cycle. By keeping the lining of the uterus thin, it makes it hard for a fertilized egg to stick around. It also slows down or stops ovulation if you haven’t released an egg yet.

It’s not an abortion pill – it won’t end an existing pregnancy. If implantation has already happened, levonorgestrel won’t have any effect.

Key Safety Tips & Common Side Effects

Take the pill with water and try to avoid extra alcohol that night; it can make nausea worse. If you vomit within two hours of taking it, call a pharmacist – you may need another dose.

Typical side effects are mild: headache, fatigue, breast tenderness, or a short change in your period. Your next cycle might arrive a few days early or late, but that’s normal and should settle down.

Avoid levonorgestrel if you’re allergic to it or have severe liver disease. It’s also not the best choice for regular birth control – talk to a doctor about daily pills, IUDs, or implants if you need ongoing protection.

When you buy levonorgestrel online, stick to reputable pharmacies that require a prescription or at least verify your age. Look for certifications and read reviews. Cheap, unverified sites can sell counterfeit pills that don’t work.

If you find yourself needing emergency contraception often, consider a regular method. Frequent use of high‑dose levonorgestrel isn’t harmful, but it’s less convenient and more expensive than a consistent birth control plan.

Remember, levonorgestrel doesn’t protect against sexually transmitted infections (STIs). Use condoms if STI prevention is also a concern.

In short, levonorgestrel is a reliable backup when used correctly. Keep it in a safe place, follow the dosing instructions, and don’t hesitate to ask a pharmacist or doctor if you have questions.

24 Aug