Levonorgestrel BP: What It Is and When to Use It

Levonorgestrel BP is a standard pharmaceutical form of levonorgestrel used widely for emergency contraception and some hormone therapies. If you've missed contraception or had unprotected sex, levonorgestrel can reduce the chance of pregnancy when taken quickly. Itʼs simple medicine, but timing, dose, and a few precautions matter.

How to use levonorgestrel BP

For emergency contraception adults usually take 1.5 mg as a single tablet or two 0.75 mg tablets 12 hours apart. Take it as soon as possible — effectiveness falls the longer you wait. It works mainly by stopping or delaying ovulation. If you vomit within two hours of taking the pill, you may need to take another dose; call your pharmacist or doctor for advice.

Levonorgestrel is not the same as regular birth control pills. It wonʼt terminate an existing pregnancy and it wonʼt protect you from sexually transmitted infections. If you need ongoing contraception, talk to a clinician about pills, IUDs, or implants that suit you better for regular use.

Safety, side effects, and practical tips

Common side effects are nausea, tiredness, dizziness, breast tenderness, and light spotting or an early/late period. These usually pass in a day or two. Serious reactions are rare. If you have severe abdominal pain, heavy bleeding, or signs of allergy like swelling or trouble breathing, seek medical care.

Effectiveness can be lower in people with high body weight or BMI. Some enzyme-inducing drugs — for example certain anti-seizure medicines, rifampicin, or St. Johnʼs wort — can also reduce how well levonorgestrel works. If you take those medications, ask a healthcare provider about alternatives like the copper IUD, which remains effective.

Levonorgestrel is generally safe for most people, including breastfeeding women. If youʼre pregnant already, it wonʼt affect the pregnancy, but confirm with a healthcare provider before use if you suspect pregnancy or have medical conditions that need review.

For storage, keep tablets at room temperature, away from direct sunlight and out of reach of children. Read the leaflet for any product-specific advice and expiration dates.

Where to buy: get levonorgestrel from licensed pharmacies, clinic services, or reputable online pharmacies that require a valid prescription when needed. Avoid unknown sellers on shady sites; check for verified pharmacy seals, clear contact details, and secure payment methods.

If youʼre unsure after taking levonorgestrel — about timing, interactions, or next steps — call a pharmacist or your clinic. They can advise on pregnancy testing, follow-up contraception, or other options. Quick action and good information are what matter most when you need emergency contraception.