PLAN B 0.75MG TABLETS - RX ONLY   Enlarge image

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Drug Information For:


Ingredient Name:

LEVONORGESTREL (LEE-voe-nor-jes-trel)

Drug Manufacturer:


Common Uses:

This medicine is a progestin used to prevent pregnancy after known or suspected contraceptive failure or unprotected intercourse.

Before Using This Medicine:

Some medicines or medical conditions may interact with this medicine. INFORM YOUR DOCTOR OR PHARMACIST of all prescription and over-the-counter medicine that you are taking. DO NOT TAKE THIS MEDICINE if you are also taking nevirapine, rifampin, or St. John's wort. ADDITIONAL MONITORING OF YOUR DOSE OR CONDITION may be needed if you are taking anticoagulants (eg, warfarin), antifungals (eg, ketoconazole), aprepitant, barbiturates (eg, phenobarbital), beta-adrenergic blockers (eg, metoprolol), bosentan, carbamazepine, corticosteroids (eg, prednisone), felbamate, griseofulvin, HIV protease inhibitors (eg, indinavir), hydantoins (eg, phenytoin), lamotrigine, modafinil, oxcarbazepine, penicillins (eg, amoxicillin), rufinamide, selegiline, tetracyclines (eg, doxycycline), theophylline, topiramate, troglitazone, troleandomycin, or valproic acid. DO NOT START OR STOP any medicine without doctor or pharmacist approval. Inform your doctor of any other medical conditions including a history of ectopic pregnancy, diabetes, allergies, or breast-feeding. Tell your doctor if you are premenstrual. USE OF THIS MEDICINE IS NOT RECOMMENDED if you have abnormal vaginal bleeding, known or suspected breast cancer, or a blood clotting disorder. USE OF THIS MEDICINE IS NOT RECOMMENDED if you have had a stroke or history of bleeding in the brain, if you are pregnant, or if you suspect that you are pregnant. Use of this medicine in CHILDREN who have not had their first menstrual period is not recommended. Discuss with your doctor the risks and benefits of giving this medicine to your child. Contact your doctor or pharmacist if you have any questions or concerns about taking this medicine.

How to Use This Medicine:

An additional patient information leaflet is available with this medicine. Ask your doctor, nurse, or pharmacist any questions that you may have about this information. The first dose of this medicine should be taken as soon as possible within 72 hours of having unprotected sex. The second dose should be taken 12 hours later. However, your doctor may instruct you to take this medicine in a different way. Follow the directions provided by your doctor. If you experience vomiting within 1 hour of taking this medicine, contact your doctor for instructions. This medicine may be taken any time during the menstrual cycle. A physical exam is not needed before taking this medicine. If you are unsure about your general health or pregnancy status, a follow-up physical or pelvic exam may be needed after taking this medicine. STORE THIS MEDICINE at room temperature below 77 degrees F (25 degrees C), away from heat, moisture, and light. Brief storage between 59 and 86 degrees F (15 and 30 degrees C) is permitted. IF YOU MISS A DOSE OF THIS MEDICINE, contact your doctor immediately.


DO NOT TAKE THIS MEDICINE if you have had an allergic reaction to it or if you are allergic to any ingredient in this product. THIS MEDICINE IS AN EMERGENCY contraceptive. It should not be used for routine birth control. If you have sexual intercourse after you take this medicine but before you have your next menstrual period, be sure to use an effective form of contraception, such as a diaphragm or condom. THIS MEDICINE MAY CAUSE DIZZINESS. Do not drive, operate machinery, or do anything else that could be dangerous until you know how you react to this medicine. Using this medicine alone, with other medicines, or with alcohol may lessen your ability to drive or to perform other potentially dangerous tasks. USE OF THIS MEDICINE WILL NOT PREVENT the spread of sexually transmitted diseases (STDs), including HIV. IF YOUR NORMAL MENSTRUAL PERIOD is late by more than 1 week, call your doctor right away. FOR WOMEN: THIS MEDICINE WILL NOT end an existing pregnancy. DO NOT USE THIS MEDICINE if you are pregnant. THIS MEDICINE IS EXCRETED in breast milk. IF YOU ARE OR WILL BE BREAST-FEEDING while you use this medicine, check with your doctor or pharmacist to discuss the risks to your baby. DIABETES PATIENTS: This medicine may affect your blood sugar. Check blood sugar levels closely and ask your doctor before adjusting the dose of your diabetes medicine.

Possible Side Effects:

SIDE EFFECTS that may occur while taking this medicine include nausea; dizziness; headache; breast tenderness; changes in menstrual flow; diarrhea; stomach pain; tiredness; or vomiting. If they continue or are bothersome, check with your doctor. CONTACT YOUR DOCTOR IMMEDIATELY if you experience spotting instead of your usual period or severe or persistent lower stomach pain. AN ALLERGIC REACTION to this medicine is unlikely, but seek immediate medical attention if it occurs. Symptoms of an allergic reaction include rash; hives; itching; difficulty breathing; tightness in the chest; or swelling of the mouth, face, lips, or tongue. This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your healthcare provider. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.


If overdose is suspected, contact your local poison control center or emergency room immediately. Symptoms of overdose may include nausea, vomiting, and vaginal bleeding.

Additional Information:

DO NOT SHARE THIS MEDICINE with others for whom it was not prescribed. DO NOT USE THIS MEDICINE for other health conditions. KEEP THIS MEDICINE out of the reach of children and pets.

Copyright 2015 Wolters Kluwer Health, Inc.


- This information is not intended to substitute for professional medical advice. Be sure to contact your physician, pharmacist or other health care provider for more information about this medication. By searching these web site pages, you agree to our terms and conditions of use.