Twinrix: Combined Hepatitis A & B Vaccine

Twinrix is a combination vaccine that protects against both hepatitis A and hepatitis B in a single series, making it a practical choice for adults who need coverage for both viruses. Instead of tracking two separate vaccination schedules, patients complete one streamlined series—a convenience that matters for travelers, healthcare workers, and anyone at increased risk of exposure.

Because Twinrix is a prescription biologic, purchasing typically requires appropriate licensure and cold-chain handling. The vaccine must be stored refrigerated and never frozen, so proper receiving and storage protocols are essential for maintaining potency. Clinics, pharmacies, and travel medicine practices ordering Twinrix should confirm their storage capacity and account credentials before purchase.

Who Typically Receives It

Twinrix is indicated for adults 18 years and older who want protection against both hepatitis A and B. Common candidates include international travelers heading to regions where these infections are endemic, people with chronic liver disease, individuals with occupational exposure to blood or bodily fluids, and those seeking dual protection ahead of an anticipated exposure. Because immunity for both diseases develops through the same schedule, it appeals to anyone who values a consolidated approach.

The standard adult schedule is three doses given over six months, with an accelerated schedule available when protection is needed on a shorter timeline—useful when travel dates are approaching quickly. Your prescribing clinician determines the appropriate schedule based on the patient's needs and timeline.

Stocking Twinrix helps practices offer combined coverage without maintaining separate single-antigen products. For related immunization inventory and complementary clinical supplies, explore our broader Vaccines selection and Pharmacy category to round out your ordering.

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Twinrix: Combined Hepatitis A & B Vaccine