Received May 27, 2026
Reports are unverified and do not show that a vaccine caused an event. Full disclaimer
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| RSV | RSV (AREXVY) | GLAXOSMITHKLINE BIOLOGICALS | UNK | F7527 | IM / LA |
Underdose/when administering a dose of Arexvy today, 22-MAY-2026, some of the vaccine leaked out the sides of the syringe,; This non-serious case was reported by a pharmacist via call center representative and described the occurrence of underdose in a 82-year-old female patient who received RSVPreF3 adjuvanted (Arexvy) suspension for injection (batch number F7527 with expiry date 31-JAN-2027) for prophylaxis. On 22-MAY-2026, the patient received Arexvy (intramuscular, left arm). On 22-MAY-2026, an unknown time after receiving Arexvy, the patient experienced underdose (Verbatim: Underdose/when administering a dose of Arexvy today, 22-MAY-2026, some of the vaccine leaked out the sides of the syringe,). The outcome of the underdose was not applicable. Additional Information: GSK Receipt Date: 22-MAY-2026 The reporter was a pharmacist calling to report that when administering a dose of Arexvy today, 22-MAY-2026, some of the vaccine leaked out the sides of the syringe, and the reporter was not sure how much of the vaccine the patient received (adverse event Filed Underdose).