It is a progestin hormone that works mainly by preventing the release of an egg (ovulation) during your menstrual cycle. Levonorgestrel 1.5mg tablets are thought to work by: stopping your ovaries from releasing an egg preventing sperm from fertilising any egg you may have already released. … Levonorgestrel is used to prevent pregnancy after unprotected sexual intercourse (sex without any method of birth control or with a birth control method that failed or was not used properly [e.g., a condom that slipped or broke or birth control pills that were not taken as scheduled]). After levonorgestrel intake, menstrual periods are usually normal and occur at the expected date. Potential exposure of an infant to levonorgestrel can be reduced if the breast-feeding woman takes the tablet immediately after feeding and avoids nursing at least 8 hours following Levonorgestrel administration.Levonorgestrel increases the possibility of cycle disturbances which can sometimes lead to earlier or later ovulation date resulting in modified fertility date. Patients with rare hereditary problems of galactose intolerance, the Lapp lactase deficiency or glucose-galactose malabsorption should not take this medicine. Repeated administration within a menstrual cycle is not advisable because of the possibility of disturbance of the cycle. They can sometimes occur earlier or later than expected by a few days. Instead, the best way to dispose of your medication is through a medicine take-back program. If no withdrawal bleed occurs in the next pill-free period following the use of levonorgestrel after regular hormonal contraception, pregnancy should be ruled out. Both meta-analyses excluded intake later than 72 hours after unprotected intercourse (i.e. If you are elderly you might require a lower dose. a Cu-IUD) should be considered. This information is intended for use by health professionalsEach tablet contains 140.10 mg of lactose monohydrate.White to off-white round shaped tablets, debossed with “LV1” on one side and plain on the other side.Emergency contraception within 72 hours of unprotected sexual intercourse or failure of a contraceptive method.One tablet should be taken as soon as possible, preferably within 12 hours, and no later than 72 hours after unprotected intercourse (see section 5.1).If vomiting occurs within three hours of taking the tablet, another tablet should be taken immediately.Women who have used enzyme-inducing drugs during the last 4 weeks and need emergency contraception are recommended to use a non-hormonal EC (emergency contraception), i.e. If you are taking levonorgestrel as a two tablet product, take one tablet as soon as possible within 72 hours after unprotected sexual intercourse and take a second dose 12 hours later. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Levonorgestrel is not recommended in patients with severe hepatic dysfunction. This study provides common interactions between Levonorgestrel and Carbamazepine, and groups them by gender and age (0-60+). See the FDA's Safe Disposal of Medicines website (It is important to keep all medication out of sight and reach of children as many containers (such as weekly pill minders and those for eye drops, creams, patches, and inhalers) are not child-resistant and young children can open them easily. It is also important information to carry with you in case of emergencies.URL of this page: https://medlineplus.gov/druginfo/meds/a610021.htmlTo use the sharing features on this page, please enable JavaScript. Use of emergency contraception does not replace the necessary precautions against sexually transmitted diseases.The metabolism of levonorgestrel is enhanced by concomitant use of liver enzyme inducers, mainly CYP3A4 enzyme inducers. Levonorgestrel may prevent pregnancy, but it will not prevent the spread of human immunodeficiency virus (HIV, the virus that causes acquired immunodeficiency syndrome [AIDS]) and other sexually transmitted diseases.Levonorgestrel comes as a tablet to take by mouth.