Følgende bivirkninger er rapporteret i meget sjældne tilfælde (færre end 1 ud af 10. 000 vaccinationer) i dagene eller ugerne efter vaccination med lignende kombinerede eller individuelle hepatitis A eller hepatitis B vacciner:
Additional side effects that have been reported very rarely (less than 1 in 10,000 doses of vaccine) in the days or weeks after vaccination with very similar combined or individual hepatitis A and hepatitis B vaccines, include: