letermovir · Medicine question

Is letermovir recommended during pregnancy?

iatroX medicinesPublished 8 November 2026

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Letermovir is not recommended during pregnancy or in women of childbearing potential not using contraception, because there are no data in pregnant women and animal studies have shown reproductive toxicity.

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PREVYMIS 240 mg film-coated tabletsMerck Sharp & Dohme (UK) Limited · emc · SmPC §4.6 Fertility, pregnancy and lactation · Version 14Document updated 10 February 2026

Sources checked 8 November 2026

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