Twinrix is a bivalent vaccine containing the antigenic components used in producing HAVRIX (strain HM175) and ENGERIX-B [noninfectious hepatitis B virus surface antigen (HBsAg).].
Twinrix is indicated for active immunization against disease caused by hepatitis A virus and infection by all known subtypes of hepatitis B virus.
Twinrix is a sterile suspension for intramuscular administration.
Twinrix is approved for use in persons 18 years of age or older.