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Drug Information for Levonorgestrel Tablets, 0.75 mg (Rebel Distributors Corp.): WARNINGS
- CLINICAL PHARMACOLOGY
- INDICATIONS AND USAGE
- Clinical Studies
- ADVERSE REACTIONS
- DRUG ABUSE AND DEPENDENCE
- DOSAGE AND ADMINISTRATION
- HOW SUPPLIED
- External Links Related to Levonorgestrel Tablets, 0.75 mg (Rebel Distributors Corp.)
Levonorgestrel tablets are not recommended for routine use as a contraceptive.Levonorgestrel tablets are not effective in terminating an existing pregnancy.
Effects on Menses
Menstrual bleeding patterns are often irregular among women using progestin-only oral contraceptives and in clinical studies of levonorgestrel for postcoital and emergency contraceptive use. Some women may experience spotting a few days after taking levonorgestrel tablets. At the time of expected menses, approximately 75% of women using levonorgestrel tablets had vaginal bleeding similar to their normal menses, 12% to 13% bled more than usual, and 12% bled less than usual. The majority of women (87%) had their next menstrual period at the expected time or within ± 7 days, while 13% had a delay of more than 7 days beyond the anticipated onset of menses. If there is a delay in the onset of menses beyond 1 week, the possibility of pregnancy should be considered.
Ectopic pregnancies account for approximately 2% of reported pregnancies (19.7 per 1,000 reported pregnancies). Up to 10% of pregnancies reported in clinical studies of routine use of progestin-only contraceptives are ectopic. A history of ectopic pregnancy need not be considered a contraindication to use of this emergency contraceptive method. Health providers, however, should be alert to the possibility of an ectopic pregnancy in women who become pregnant or complain of ower abdominal pain after taking levonorgestrel tablets.
- Drug Information Provided by National Library of Medicine (NLM).