Norgestrel

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Norgestrel
Levonorgestrel.svg
Clinical data
ATC code
Pharmacokinetic data
Elimination half-life5-14 hours
Identifiers
CAS Number
PubChem CID
DrugBank
E number{{#property:P628}}
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Chemical and physical data
FormulaC21H28O2
Molar mass312.446 g/mol

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Norgestrel is a progestin used in hormonal contraceptives. Norgestrel is a mixture of two stereoisomers, dextro-norgestrel (CAS# 797-64-8) and levo-norgestrel (CAS# 797-63-7). Only levonorgestrel is biologically active. Therefore, while some medications may contain dextronorgestrel, they are often labeled in terms of their levonorgestrel content only, ignoring the inert isomer.

See also



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