dienogest · Medicine question

How can St John's wort affect dienogest?

iatroX medicinesPublished 8 November 2026

The answer

Answer

St John's wort may increase dienogest clearance through enzyme induction, potentially reducing its therapeutic effect and causing changes in uterine bleeding.

Sources for this answer

Dimetrum 2 mg TabletsBesins Healthcare (UK) Ltd · emc · SmPC §4.5 Interaction with other medicinal products · Version 3Document updated 8 November 2022

Sources checked 8 November 2026

Explore this learning need in CPDTake this topic to CPD, then choose your learning context and available question library.

How does erythromycin affect exposure to dienogest?Can Dimetrum (dienogest) be used during pregnancy?Can Dimetrum (dienogest) tablets be taken with or without food?How does dienogest work in endometriosis?How frequently was headache reported in patients taking dienogest 2 mg?How much lactose monohydrate does each Dimetrum (dienogest) tablet contain?

loading page…

Answer

Sources for this answer

More questions about dienogest

Answer

Sources for this answer

More questions about dienogest

More clinical questions?