Filippi V

No ORCID on file · 1 paper in corpus

2009

Safety, efficacy and patient satisfaction with continuous daily administration of levonorgestrel/ethinylestradiol oral contraceptives.

Patient preference and adherence ·doi:10.2147/ppa.s3692

The progestational steroid norgestrel was synthesized and tested between 1960 and 1965 through an international cooperation between Wyeth, USA and Schering, Berlin. It is a mixture of two "enantiomers," with only one form (designated as lev…