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Classification of progestins used in combined oral contraceptive pills
Classification of progestins used in combined oral contraceptive pills
First generation
Norethindrone acetate
Ethynodiol diacetate
Lynestrenol
Norethynodrel
Second generation
dl-Norgestrel
Levonorgestrel
Third generation
Desogestrel
Gestodene
Norgestimate
Unclassified
Drospirenone
Cyproterone acetate
Reproduced with permission from: Reust CE, Espinoza SA, Ruplinger J, Swofford S. What is the approach to intermenstrual bleeding in a woman taking a combined oral contraceptive? Evidence-Based Practice 2012; 15:29. Copyright © 2013 Family Physicians Inquiries Network.
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