Received Nov 12, 2025
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| HEP | HEP B (ENGERIX-B) | GLAXOSMITHKLINE BIOLOGICALS | UNK | — | — |
Pediatric dose of Engerix-B to an adult patient; Underdose; This non-serious case was reported by a nurse via call center representative and described the occurrence of adult use of a child product in a adult patient who received HBV (Engerix B pediatric) for prophylaxis. On an unknown date, the patient received Engerix B pediatric. On an unknown date, an unknown time after receiving Engerix B pediatric, the patient experienced adult use of a child product (Verbatim: Pediatric dose of Engerix-B to an adult patient) and underdose (Verbatim: Underdose). The outcome of the adult use of a child product and underdose were not applicable. This report is made by GSK without prejudice and does not imply any admission or liability for the incident or its consequences. Additional Information: GSK Receipt Date: 10-NOV-2025 The reporter reported that pediatric dose of Engerix-B was given to an adult patient a while ago. The batch number was not provided upon follow- up with the reporter.