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MHRA (UK) · DRUG SAFETY UPDATEJuly 7, 2025
Abrysvo▼ (Pfizer RSV vaccine) and Arexvy▼ (GSK RSV vaccine): be alert to a small risk of Guillain-Barré syndrome following vaccination in older adults
What this record is not
Alert details are published by the UK MHRA on GOV.UK; SPEQ surfaces them for reference and is not affiliated with or endorsed by the MHRA. The authoritative notice is on gov.uk.
Alert type
Drug Safety Update
Alert date
July 7, 2025
Regulator
MHRA (United Kingdom)
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The complete MHRA alert — the affected products, batches, and the action required — is published on GOV.UK. SPEQ surfaces and indexes it for reference; the authoritative notice lives on gov.uk.
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