influenza vaccine · Medicine question

Is Fluenz recommended during pregnancy?

iatroX medicinesPublished 8 November 2026

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Fluenz is not recommended during pregnancy, although animal studies indicate no direct or indirect reproductive harm and post-marketing data offer some reassurance following inadvertent vaccination.

Sources for this answer

Fluenz nasal spray suspension Influenza vaccine (live, nasal)AstraZeneca UK Limited · emc · SmPC §4.6 Fertility, pregnancy and lactation · Version 4Document updated 23 July 2025

Sources checked 8 November 2026

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Can Fluenz be used during breastfeeding?How can antiviral medicines active against influenza A or B affect Fluenz?How does the Fluenz influenza vaccine stimulate an immune response?How is Fluenz administered?What is Fluenz used to prevent, and which age group is it indicated for?What was the most common adverse reaction to Fluenz in clinical studies?

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