Received Dec 24, 2025
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| MMRV | MEASLES + MUMPS + RUBELLA + VARICELLA (PROQUAD) | MERCK & CO. INC. | UNK | Z014409 | — |
| VARCEL | VARICELLA (VARIVAX) | MERCK & CO. INC. | UNK | Z009469 | — |
No adverse side effects reported. No additional AE.; HCP called to report they administered a VARIVAX and PROQUAD together. She said they meant to use the MMR II and confused it with the PROQUAD.; HCP called to report they administered a VARIVAX and PROQUAD together. She said they meant to use the MMR II and confused it with the PROQUAD.; HCP called to report they administered a VARIVAX and PROQUAD together. She said they meant to use the MMR II and confused it with the PROQUAD.; This spontaneous report was received from a nurse and refers to a 12-month-old patient of unknown gender. The patient's medical history, concurrent conditions, concomitant therapies, previous drugs reactions and allergies were not reported. On 19-Dec-2025, the patient was vaccinated with varicella virus vaccine live (oka-merck) (VARIVAX) injection, administered as prophylaxis (Lot No. Z009469 has been verified to be a valid lot number for [varicella virus vaccine live (oka-merck)], expiration date reported and upon internal validation established as 27-May-2027) (strength, dose number, exact dose quantity volume, route and anatomical location of administration and vaccination scheme frequency were not provided); also with measles, mumps, rubella and varicella (oka-merck) virus vaccine live (rHA [recombinant Human albumin]) (PROQUAD) injection (Lot No. Z014409 has been verified to be a valid lot number for [measles, mumps, rubella and varicella (oka-merck) virus vaccine live], expiration date reported and upon internal validation established as 10-Mar-2027) (strength, dose number, exact dose quantity volume, route and anatomical location of administration and vaccination scheme frequency were not provided); that were reconstituted with sterile diluent, solution for injection (Lot No., expiration date and indication were not provided). It was reported that they meant to administered measles, mumps, and rubella (wistar ra 27-3) virus vaccine, live lyophilisate and solvent for solution for injection (MMR II) and confused it with the measles, mumps, rubella and varicella (oka-merck) virus vaccine live (rHA [recombinant Human albumin]) (PROQUAD) (wrong product administered) (overdose) (product confusion). No adverse side effects reported. No additional AE (No adverse event).
MERCK STERILE DILUENT