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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.
Estradiol/levonorgestrel (E2/LNG), sold under brand name Climara Pro, is a combination of estradiol (E2) and levonorgestrel (LNG) which is used in menopausal hormone therapy. [ 1 ] [ 2 ] [ 3 ] It is a 22-cm 2 transdermal patch containing 4.4 mg estradiol and 1.39 mg levonorgestrel and delivers 45 μg/day estradiol and 15 μg/day levonorgestrel.
Levonorgestrel-releasing implant, sold under the brand name Jadelle among others, are devices that release levonorgestrel for birth control. [1] It is one of the most effective forms of birth control with a one-year failure rate around 0.05%. [1] [2] The device is placed under the skin and lasts for up to five years. [3]
Those include Plan B One-Step, Take Action, My Way, Option 2, Preventeza, AfterPill, My Choice, Aftera, EContra and Morning After Pill. ... Levonorgestrel is a tablet taken by mouth, ...
The primary mechanisms of action are so effective that the possibility of fertilization during combined oral contraceptive pill use is very small. Since pregnancy occurs despite endometrial changes when the primary mechanisms of action fail, endometrial changes are unlikely to play a significant role, if any, in the observed effectiveness of ...
Combined birth control pills that contain natural estradiol or an estradiol ester (e.g., estradiol valerate) include: [1] [2] [3]. Estradiol valerate and cyproterone acetate (brand name Femilar) – introduced in Finland (only) in 1993 [3]
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