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Levonorgestrel is a hormonal medication which is used in a number of birth control methods. [3] [7] It is combined with an estrogen to make combination birth control pills. [8]As an emergency birth control, sold under the brand names Plan B One-Step and Julie, among others, it is useful within 72 hours of unprotected sex.
All contain an estrogen, ethinylestradiol or mestranol, [1] [2] in varying amounts, and one of a number of different progestogens. (Regarding the estrogen, the inactive 3-methyl ether of ethinylestradiol, which must be metabolized by the liver into the active ethinylestradiol; 50 μg of mestranol is equivalent to only 35 μg of ethinylestradiol and should not be used when high-dose [50 μg ...
Norelgestromin/ethinylestradiol, sold under the brand name Ortho Evra among others, is a contraceptive patch containing the progestin norelgestromin and the estrogen ...
Plan B one step was the first levonorgestrel progestin-only EC approved by the FDA in 1999. [41] Currently, there are many different brands of levonorgestrel EC pills, including Take Action, Next Choice One Dose, and My Way and regimens include a single 1.5 mg pill of levonorgestrel. [41]
The risk of thromboembolism varies with different types of birth control pills; compared with combined oral contraceptives containing levonorgestrel (LNG), and with the same dose of estrogen and duration of use, the rate ratio of deep venous thrombosis for combined oral contraceptives with norethisterone is 0.98, with norgestimate 1.19, with ...
However, the risk with low-dose combined hormonal contraceptives remain relatively low in most cases. Health providers may recommend against formulations with estrogen in women with certain risk factors including personal or family history of blood clots, pregnancy and the first 3 weeks postpartum, obesity, inactivity, and coagulation disorders.
NFL fans are gearing up for one of the best holiday traditions in sports. The league is set to kick off its playoff push with three Thanksgiving games, featuring several teams vying for playoff spots.
When using Mirena, about 0.1% of the maternal dose of levonorgestrel can be transferred via milk to the nursed infant. [40] A six-year study of breastfed infants whose mothers used a levonorgestrel-only method of birth control found the infants had increased risk of respiratory infections and eye infections, though a lower risk of neurological ...