Levonorgestrel BP: Quick Guide to Uses, Dosage & Safety

If you’ve ever needed a backup birth control method, chances are you’ve heard of Levonorgestrel. It’s the active ingredient in many over‑the‑counter emergency contraceptive pills. The "BP" tag means the formulation follows the British Pharmacopoeia standards, ensuring consistent quality.

How Levonorgestrel BP Works

Levonorgestrel is a synthetic hormone that mimics progesterone. When you take it within 72 hours after unprotected sex, it stops or delays ovulation so an egg can’t meet sperm. It won’t terminate an existing pregnancy, so it’s only effective as a preventive measure.

Correct Dosage and Timing

The standard emergency dose is 1.5 mg taken all at once, or two 0.75 mg tablets spaced 12 hours apart. The sooner you take it, the better—effectiveness drops from about 95% within 24 hours to roughly 58% after three days.

If you’re using Levonorgestrel BP as a regular birth‑control pill (some brands offer a low‑dose daily version), follow your doctor’s instructions exactly. Missing a dose can reduce protection and increase side‑effects like spotting.

Common Side Effects You Might Feel

Most people experience mild symptoms: nausea, headache, fatigue, or light spotting. These usually fade within a day or two. If you vomit within two hours of taking the pill, talk to a pharmacist about re‑dosing.

When to Seek Medical Help

If you notice severe abdominal pain, heavy bleeding, or signs of an allergic reaction (rash, swelling, trouble breathing), call your doctor right away. Also, if your period is more than a week late, consider a pregnancy test.

Tips for Safe Use

• Keep the medication in a cool, dry place—heat can degrade the hormone.
• Check the expiration date before use; potency drops after that.
• Don’t rely on Levonorgestrel BP as your main birth control method. Combine it with regular contraception for better protection.
• If you’re breastfeeding or have a history of blood clots, consult a healthcare professional before taking the pill.

Bottom line: Levonorgestrel BP is a reliable backup when used correctly. Knowing the right timing, dosage, and what to expect can make the experience less stressful and more effective. Keep this guide handy for quick reference, and always reach out to a pharmacist or doctor if you’re unsure about any step.