Already had 1 or 2 vaccine doses?

Remember to
complete the series.

If you’ve started your Twinrix® vaccination schedule, you will need 1 or 2 more injections to complete the series (1 month and 6 months after your first, according to the standard schedule). It’s very important to get all 3 vaccine doses. If you don’t, you may not be fully protected against hepatitis A and B.

NOTE: If you are following the rapid schedule, you will need an additional 3 vaccine doses – 1 week, 3 weeks, and 1 year after your first, for a total of 4 injections.

Twinrix® vaccination schedules

Adult Vaccination Schedule
Age Group Vaccine Dose #1 Vaccine Dose #2 Vaccine Dose #3 Vaccine Dose #4
Standard Schedule Adults over age 19 You choose
the date.
1 month after
the first.
6 months after
the first.
- - -
Rapid Schedule Adults over age 19 You choose
the date.
1 week after
the first.
3 weeks after
the first.
1 year after
the first.
Pediatric Vaccination Schedule
Age Group Vaccine Dose #1 Vaccine Dose #2 Vaccine Dose #3
Standard Schedule Twinrix® Junior
(0.5 mL)
1-18 years You choose
the date.
1 month after
the first.
6 months after
the first.
Alternate Schedule Twinrix®
(1 mL)
1-15 years You choose
the date.
6-12 months after
the first.
- - -

Sign up for our "Complete the Series" reminder program.

Talk to your healthcare provider about Twinrix®

Only the Twinrix® vaccine can help protect you against both hepatitis A and B.