hepatitis b vaccine (rDNA) · Medicine question

Can Engerix B 20 micrograms/1 ml hepatitis B vaccine (rDNA) be administered if the plunger has been pulled out of the pre-filled syringe barrel?

Name: Can Engerix B 20 micrograms/1 ml hepatitis B vaccine (rDNA) be administered if the plunger has been pulled out of the pre-filled syringe barrel?
Published: 2026-11-08T13:48:46.614Z

iatroX medicinesPublished 8 November 2026

The answer

Answer

No, Engerix B 20 micrograms/1 ml hepatitis B vaccine (rDNA) must not be administered if the plunger has been pulled out of the pre-filled syringe barrel.

Sources for this answer

Engerix B 20 micrograms/1 ml Suspension for injection in pre-filled syringe (Adult and Paediatric)GlaxoSmithKline UK · emc · SmPC §6.6 Special precautions for disposal and other handling · Version 20Document updated 2 June 2026

Sources checked 8 November 2026

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