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Quick Detail :
Norgestrel
Synonyms: OVRETTE(R);NORPLANT;NORGESTREL;NORGESTREL(LEVO);17-ALPHA-ETHYNYL-18-HOMO-19-NORTESTOSTERONE;18,19-DINOR-13-BETA-ETHYL-17-BETA-HYDROXY-4-PREGNEN-20-YN-3-ONE;18,19-DINOR-4-PREGNEN-20-YN-3-ONE;13BETA-ETHYL-17ALPHA-ETHYNYL-17BETA-HYDROXYGON-4-EN-3-ONE
CAS: 6533-00-2
MF: C21H28O2
MW: 312.45
Purity : 99%
EINECS: 212-349-8
Appearance: White Powder
Usage: it is an excellent progestational and ovulation inhibiting steroid. The bioactive enantiomer is levorotatory. Progestogen; oral contraceptive.
Description :
Norgestrel (INN, USAN, BAN, JAN) is a steroidal progestin that has been used in hormonal contraceptives. It is a mixture of two stereoisomers, dextronorgestrel (CAS# 797-64-8 ) and levonorgestrel (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.[citation needed]
Norgestrel has also been used as an emergency contraceptive in the Yuzpe regimen.
Application :
1.This medication is used to prevent pregnancy. It is often referred to as the "mini-pill" because it does not contain any estrogen. Norgestrel (a form of progestin) is a hormone that prevents pregnancy by changing the womb and cervical mucus to make it more difficult for an egg to meet sperm (fertilization) or for the fertilized egg to attach to the wall of the womb (implantation). Regular use of the "mini-pill" prevents the release of an egg (ovulation) in about half of the women who use it.
2.While the "mini-pill" is more effective than certain other methods of birth control (e.g.,condoms, cervical cap, diaphragm), it is less effective than estrogen/progestin birth control because it does not consistently prevent ovulation. It is usually used by women who cannot take estrogen. For the most effective results, it is very important to take this medication exactly as prescribed.
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