Combination Vaccine

Twinrix* is a vaccine for both hepatitis A and hepatitis B. It combines two FDA-approved vaccines--Havrix, for hepatitis A, and Engerix-B, for hepatitis B. It protects individuals 18 years of age or older against diseases caused by hepatitis A and hepatitis B viruses. The vaccine is recommended for travelers whose occupation or behavior puts them at high risk for exposure to hepatitis B virus, or who are visiting countries with a high or intermediate rate of both hepatitis viruses, as defined by the Centers for Disease Control and Prevention.

Twinrix*
Age	# of Doses	Schedule	Dose
Adults 18 years and older	3	0, 1, and 6 to 12 months	720 ELISA units (Hepatitis A), 20 µg (Hepatitis B) (1.0 mL total)

*Manufactured by SmithKline Beecham Pharmaceuticals.

source: http://digestive.niddk.nih.gov/ddiseases/pubs/vaccinationshepab/index.htm