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Hepatitis A Adult Vaccine Dosage

Medically reviewed by Last updated on Dec 13, 2021.

Applies to the following strengths: 50 units/mL; 1440 units/mL; 1440 units/mL preservative free

Usual Adult Dose for Hepatitis A Prophylaxis

1 mL intramuscularly

  • Administer a booster 1 mL dose 6 to 18 months after the first dose

  • Administer in the deltoid region

Renal Dose Adjustments

Data not available

Liver Dose Adjustments

Data not available



  • Hypersensitivity to any of the ingredients including neomycin
  • Hypersensitivity to previous hepatitis A vaccination

Safety and efficacy have not been established in patients younger than 1 year.

To report suspected adverse reactions, contact the Vaccine Adverse Event Reporting System (VAERS) at:

Consult WARNINGS section for additional precautions.


Data not available.

Other Comments

Administration advice:

  • For intramuscular use only.
  • Do not administer in the gluteal area as a suboptimal response may occur.
  • Do not administer intravenously, intradermally, or subcutaneously.
  • Primary immunization should be given at least 2 weeks prior to expected exposure to hepatitis A.

Storage requirements:
  • Refrigerate; do not freeze

Reconstitution/preparation techniques:
  • Shake well before use.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.