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This FSRH Guidance updates the January 2017 version and provides clinical recommendations and good practice points for health professionals on Drug Interactions with Hormonal Contraception.
This document is up-to-date
St Johns wort is a herbal product that is used for depressive symptoms and is known to have enzyme-inducing effects on cytochrome p450 enzymes. The MHRA statement highlights that in the last quarter of 2013, two ‘Yellow Card’ reports were received relating to unplanned pregnancies, in women with progestogen-only implants, suspected to be the result of an interaction with St John’s wort.
This document is up-to-date
