Hepatitis A Vaccine Prefilled Syringes Single-Dose TIP-LOK Syringes 720EL. U. /0.5 mL x 10 Count **Refrigerated Item**Hepatitis A Vaccine Prefilled Syringes Single Dose TIP LOK Syringes 720EL. U. 0. 5 mL x 10 Count. HAVRIX is indicated for active immunization against disease caused by hepatitis A virus (HAV). HAVRIX is approved for use in persons 12 months of age and older. Primary immunization should be administered at least 2 weeks prior to expected exposure to HAV. Note: Non Returnable Item Non Stock Item Ships in 2 to 3 days Preparation for AdministrationShake