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New low-dose, extended-cycle pills with levonorgestrel and ethinyl estradiol: an evolutionary step in birth control

AIM: To review milestones in development of oral contraceptive pills since their introduction in the US 50 years ago in order to better understand how a new formulation with low-dose estrogen in an extended-cycle pattern fits into the evolution of birth control pills. METHODS: This is a review of tr...

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Bibliographic Details
Main Author: Nelson, Anita
Format: Artigo
Language:Inglês
Published: Dove Medical Press 2010
Subjects:
Online Access:https://ncbi.nlm.nih.gov/pmc/articles/PMC2971737/
https://ncbi.nlm.nih.gov/pubmed/21072303
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