dienogest + estradiol valerate · Medicine question

How does Qlaira prevent pregnancy?

iatroX medicinesPublished 8 November 2026

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Qlaira prevents pregnancy through interacting factors, principally inhibition of ovulation, changes in cervical secretion, and changes in the endometrium.

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QlairaBayer plc · emc · SmPC §5.1 Pharmacodynamic properties · Version 13Document updated 8 October 2025

Sources checked 8 November 2026

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Are data available on Qlaira use in adolescents under 18?Can Qlaira worsen hereditary or acquired angioedema?Can severe vomiting or diarrhoea affect the absorption of Qlaira?Can St John's wort reduce the contraceptive effectiveness of Qlaira?Does food affect the absorption of dienogest in Qlaira?Does Qlaira contain lactose?

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