 Twinrix Adult InjectionFreeze-dried Live Attenuated Hepatitis A Vaccine 720IU Hepatitis B Vaccine rDNA 20mgPrevention of Hepatitis A infection Prevention of Hepatitis B infectionHeadache Fatigue Injection site reactions pain swelling redness Nausea Diarrhea General discomfort Vomiting Irritability Loss of appetite Drowsiness 