Received Sep 23, 2025
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| HEPAB | HEP A + HEP B (TWINRIX) | GLAXOSMITHKLINE BIOLOGICALS | 2 | 4DS4N | — |
Twnrix late second dose; This non-serious case was reported by a physician via call center representative and described the occurrence of drug dose administration interval too long in a male patient who received HAB (Twinrix) (batch number 4DS4N, expiry date 25-SEP-2026) for prophylaxis. Previously administered products included Twinrix (received first dose on unknown date). On an unknown date, the patient received the 2nd dose of Twinrix. On an unknown date, an unknown time after receiving Twinrix, the patient experienced drug dose administration interval too long (Verbatim: Twnrix late second dose). The outcome of the drug dose administration interval too long was 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: 11-SEP-2025 The reporter wanted to know how to proceed after a patient received the second dose of Twinrix 5 months after the first dose, which led to lengthening of vaccine schedule.