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Report #2850861

Received Jul 23, 2025

A note on interpretation. VAERS reports are unverified and may be incomplete or coincidental. A report does not establish that a vaccine caused an event, and counts should not be used to calculate incidence or infer causation. Full disclaimer

Overview

Sex
Female
Age
53 yrs
State
NC
Recovered
Unknown
Vaccinated
Apr 11, 2025
Onset
Apr 11, 2025
Days to onset
0
Hospital days
—

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
HEPHEP B (ENGERIX-B)GLAXOSMITHKLINE BIOLOGICALS2H39Z4—

Symptoms (1)

Underdose

Symptom narrative

she accidentally gave a pediatric dose of Engerix-B to an adult patient; she accidentally gave a pediatric dose of Engerix-B to an adult patient; This non-serious case was reported by a other health professional via call center representative and described the occurrence of accidental underdose in a 53-year-old female patient who received HBV (Engerix B pediatric) (batch number H39Z4, expiry date 04-DEC-2025) for prophylaxis. Concomitant products included Hepatitis b vaccine rHBsAg (yeast) (Engerix b adulto). On 11-APR-2025, the patient received the 2nd dose of Engerix B pediatric. On 11-APR-2025, an unknown time after receiving Engerix B pediatric, the patient experienced accidental underdose (Verbatim: she accidentally gave a pediatric dose of Engerix-B to an adult patient) and adult use of a child product (Verbatim: she accidentally gave a pediatric dose of Engerix-B to an adult patient). The outcome of the accidental underdose and adult use of a child product 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: 15-JUL-2025 The certified medical assistant explained she accidentally gave a pediatric dose of Engerix-B to an adult patient on 11th April 2025 which led to adult use of a child product and accidental underdose. The patient got a first dose of Engerix-B on 7th March 2025, it was the usual adult dose.

Other medications

ENGERIX B ADULTO