levonorgestrel

noun

le·vo·nor·ges·trel | \ ˌlē-və-nȯr-ˈje-strəl

Definition of levonorgestrel

: the levorotatory form of a synthetic progestin C₂₁H₂₈O₂ used especially in oral contraceptives

Examples of levonorgestrel in a Sentence

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Ella is among the more common brands of emergency contraceptive pills containing ulipristal acetate (which requires a prescription), and Plan B contains levonorgestrel (and is available over the counter). — Brittney Mcnamara, Allure, "Shrill Is Right About the Impact of Your Weight on the Morning-After Pill's Efficacy," 25 Mar. 2019 Ella is one of the more common brands of emergency contraceptive pills containing ulipristal acetate (which requires a prescription), while Plan B contains levonorgestrel (and is available over the counter). — Brittney Mcnamara, Teen Vogue, "Emergency Contraceptives May Be Less Effective for People Over a Certain Weight," 19 Mar. 2019 The researchers found that, overall, IUDs containing 52 micrograms of levonorgestrel (that would be Mirena and Liletta—the others contain less of the hormone) seemed to be similarly effective at seven years as at three and five. — Korin Miller, SELF, "When Is It OK to Get Your IUD Removed?," 12 Mar. 2019 Hormonal IUDs contain the hormone levonorgestrel, which changes your uterine lining to create much lighter periods. — Hannah Orenstein, Seventeen, "What's the Best Form of Birth Control for You?," 31 Oct. 2017 Hormonal IUDs contain the hormone levonorgestrel, which changes your uterine lining to create much lighter periods. — Hannah Orenstein, Seventeen, "What's the Best Form of Birth Control for You?," 31 Oct. 2017 Hormonal IUDs contain the hormone levonorgestrel, which changes your uterine lining to create much lighter periods. — Hannah Orenstein, Seventeen, "What's the Best Form of Birth Control for You?," 31 Oct. 2017 Hormonal IUDs are coated with a synthetic progestin called levonorgestrel. — Korin Miller, SELF, "Is There Any Reliable Way to Make Your Period Come Faster?," 11 July 2018 Mirena, Kyleena, Liletta, and Skyla—that release levonorgestrel, a type of progesterone, into the uterus every day. — Lori Keong, Marie Claire, "If You’re Freaking Out About Getting an IUD, Here’s What to Know About the Insertion Process," 30 Oct. 2017

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The first known use of levonorgestrel was in 1977

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levonorgestrel

noun

le·vo·nor·ges·trel | \ ˌlē-və-nȯr-ˈjes-trəl

Medical Definition of levonorgestrel

: a synthetic progestin C₂₁H₂₈O₂ that is used especially in birth control pills and contraceptive implants and that is the levorotatory form of norgestrel — see mirena, plan b, seasonale, seasonique