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Norgestrel is a progestin
Progestin

A progestin is a Chemical synthesis progestagen that has progestinic effects similar to progesterone. The two most frequent uses of progestins are for hormonal contraception , and to prevent endometrial hyperplasia from unopposed estrogen in hormone replacement therapy....
 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
Levonorgestrel

Levonorgestrel is a synthetic progestagen used as an active ingredient in some Hormonal contraception....
 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.








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Norgestrel is a progestin
Progestin

A progestin is a Chemical synthesis progestagen that has progestinic effects similar to progesterone. The two most frequent uses of progestins are for hormonal contraception , and to prevent endometrial hyperplasia from unopposed estrogen in hormone replacement therapy....
 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
Levonorgestrel

Levonorgestrel is a synthetic progestagen used as an active ingredient in some Hormonal contraception....
 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

  • Levonorgestrel
    Levonorgestrel

    Levonorgestrel is a synthetic progestagen used as an active ingredient in some Hormonal contraception....
  • Progestin
    Progestin

    A progestin is a Chemical synthesis progestagen that has progestinic effects similar to progesterone. The two most frequent uses of progestins are for hormonal contraception , and to prevent endometrial hyperplasia from unopposed estrogen in hormone replacement therapy....