Received Oct 17, 2025
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| MMR | MEASLES + MUMPS + RUBELLA (PRIORIX) | GLAXOSMITHKLINE BIOLOGICALS | UNK | — | — |
Extra diluent found possible mixed with diluent; Inappropriate dose of vaccine administered; This non-serious case was reported by a other health professional via call center representative and described the occurrence of inappropriate preparation of medication in a patient who received MMR (Priorix) for prophylaxis. On an unknown date, the patient received Priorix. On an unknown date, an unknown time after receiving Priorix, the patient experienced inappropriate preparation of medication (Verbatim: Extra diluent found possible mixed with diluent) and inappropriate dose of vaccine administered (Verbatim: Inappropriate dose of vaccine administered). The outcome of the inappropriate preparation of medication and inappropriate dose of vaccine administered 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: 18-SEP-2025 The reporter reported that our hospital ended up having an extra diluent for Priorix, which means one of the Priorix vaccines may have been given and mixed with the wrong diluent. The reporter asked that we have not yet confirmed which diluent or if this was true, but if this did occur, was the vaccine null. The reporter said we are unsure which diluent was used and are trying to find out and wanted to know what next steps would be to report this and if you think the vaccine would be nullified. The reporter reported that Anay patient involved not that we know of as of yet, we were still investigating it and the only thing we know if the extra diluent.