A randomised study comparing the effect on ovarian activity of a progestogen-only pill (POP) containing desogestrel and a new POP containing drospirenone in a 24/4 regimen.

Conclusions The new drospirenone-only pill inhibited ovulation as effectively as the desogestrel-only pill despite the 4-day hormone-free interval. PMID: 26073333 [PubMed - as supplied by publisher]

http://www.ncbi.nlm.nih.gov/pubmed/26073333?dopt=Abstract

Source: The European Journal of Contraception and Reproductive Health Care - June 15, 2015 Category: Reproduction Medicine Authors: Duijkers IJ, Heger-Mahn D, Drouin D, Skouby S Tags: Eur J Contracept Reprod Health Care Source Type: research