Answer
Twinrix Adult is administered by intramuscular injection, preferably in the deltoid region; exceptionally, patients with thrombocytopenia or bleeding disorders may receive it subcutaneously, but this may produce a suboptimal immune response.
Sources for this answer
- Twinrix Adult Vaccine, suspension for injection in pre-filled syringeGlaxoSmithKline UK · emc · SmPC §4.2 Posology and method of administration · Version 23Document updated
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