Medical Definition of Levonorgestrel
1.
A progestational hormone with actions similar to those of progesterone and about twice as potent as its racaemic or (+-)-isomer (norgestrel). It is used for contraception, control of menstrual disorders, and treatment of endometriosis.
Pharmacological action: contraceptive agents, female, contraceptives, oral, synthetic, progestational hormones, synthetic.
Chemical name: 18,19-Dinorpregn-4-en-20-yn-3-one, 13-ethyl-17-hydroxy-, (17alpha)-(-)-
(12 Dec 1998)
Lexicographical Neighbors of Levonorgestrel
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