Article ID Journal Published Year Pages File Type
9317214 Contraception 2005 7 Pages PDF
Abstract
St. John's Wort is associated with increased metabolism of norethindrone and ethinyl estradiol, breakthrough bleeding, follicle growth and ovulation. Women using OCs should be cautioned that St. John's Wort might interfere with contraceptive effectiveness.
Keywords
Related Topics
Health Sciences Medicine and Dentistry Obstetrics, Gynecology and Women's Health
Preview
Interaction of St. John's Wort with oral contraceptives: effects on the pharmacokinetics of norethindrone and ethinyl estradiol, ovarian activity and breakthrough bleeding
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