More than half of the women had menses within two days of the expected time; however, 31% of women experienced change in their bleeding pattern during the study period; 4.5% of women had menses more than 7 days after the expected time.Levonorgestrel Tablet, 1.5 mg is available in a PVC/aluminum foil blister package. 2014 May;81(2):117-29. doi: 10.1179/2050854914Y.0000000017.J Fam Plann Reprod Health Care. 2016 Mar 7;4:27. doi: 10.3389/fpubh.2016.00027. Use of Levonorgestrel Tablet emergency contraception before menarche is not indicated.This product is not intended for use in postmenopausal women.No formal studies have evaluated the effect of race. It is important to have another reliable source of birth control that is right for you. If the pharmacy that's willing to deliver medicines to your home doesn't have levonorgestrel in stock, you can ask for one of the Two doses of 0.75 mg Levonorgestrel 12 hours apart (Plan B) were administered to women in group 2. 14-20. Take Levonorgestrel Tablet as soon as possible after unprotected sex. eCollection 2016. There was a non-statistically significant increased rate of pregnancy among Chinese women in the Levonorgestrel Tablet trial. See Table 2.Administration of Levonorgestrel tablet to 30 Healthy Female Volunteers under Fasting Conditions[/TC]Effect of Food: The effect of food on the rate and the extent of Levonorgestrel absorption following single oral administration of Levenorgestrel Tablet has not been evaluated.The apparent volume of distribution of Levonorgestrel is reported to be approximately 1.8 L/kg. Some women will have mild, temporary side effects, such as menstrual changes, nausea, lower stomach (abdominal) pain, tiredness, headache, dizziness, breast pain and vomiting. This site needs JavaScript to work properly. However, the latest scientific and medical evidence now demonstrates that levonorgestrel emergency contraception theoretically works via abortion quite often. Free PMC article Table 1 lists those adverse events that were reported in > 4% of Levonorgestrel Tablet users.The following adverse reactions have been identified during post-approval use of Plan B (2 doses of 0.75 mg Levonorgestrel taken 12 hours apart). A single dose of 1.5 mg of Levonorgestrel was administered to women allocated into group 1. Metabolic clearance rates may differ among individuals by several-fold, and this may account in part for the wide variation observed in Levonorgestrel concentrations among users.About 45% of Levonorgestrel and its metabolites are excreted in the urine and about 32% are excreted in feces, mostly as glucuronide conjugates.This product is not intended for use in the premenarcheal population, and pharmacokinetic data are not available for this population.This product is not intended for use in postmenopausal women, and pharmacokinetic data are not available for this population.No formal studies have evaluated the effect of race. Levonorgestrel Tablet is an emergency contraceptive that helps prevent pregnancy after unprotected sex or when your birth control fails or is not used correctly.Remember, Levonorgestrel Tablet is only for emergency pregnancy prevention. There has been much debate regarding levonorgestrel emergency contraception's (LNG-EC's) method of action since 1999 when the Food and Drug Administration first approved its use. 15, No. The reason for this apparent increase in the pregnancy rate with emergency contraceptives in Chinese women is unknown.No formal studies were conducted to evaluate the effect of hepatic disease on the disposition of Levonorgestrel Tablet.No formal studies were conducted to evaluate the effect of renal disease on the disposition of Levonorgestrel Tablet.Levonorgestrel is not a controlled substance. Mechanism of Action of Levonorgestrel To the Editor: Rev. Language on implantation should not be included in LNG ECP product labeling. Clipboard, Search History, and several other advanced features are temporarily unavailable. As with all progestin-only methods, … Levonorgestrel is a hormonal medication which is used in a number of birth control methods. There has been much debate regarding levonorgestrel emergency contraception's (LNG-EC's) method of action since 1999 when the Food and Drug Administration first approved its use. Among women receiving Levonorgestrel Tablet, 1.5 mg 84% of expected pregnancies were prevented and among those women taking Plan B, 79% of expected pregnancies were prevented. Post-coital contraception with Postinor, a preparation containing 0.75 mg d-norgestrel. Safety and efficacy are expected to be the same for postpubertal adolescents less than 17 years and for users 17 years and older. In the future, technology such as the use of early pregnancy factor may have the potential to quantify how frequently preovulatory LNG-EC works via abortion.