Ingredients in Hep A/Hep B Vaccine
This page shows the ingredients for combination vaccines (protecting against diseases mentioned below) that are currently available for use in the U.S.
These vaccines protect against two viruses — hepatitis A and hepatitis B. Find out more about these diseases and the vaccines that protect against them (hepatitis A and hepatitis B).
| Vaccine name | Antigen | Adjuvant | Stabilizers | Preservatives | Residual byproducts |
|---|---|---|---|---|---|
| Twinrix | Killed hepatitis A virus, Surface protein from hepatitis B virus | Aluminum phosphate, Aluminum hydroxide | Amino acids, Sodium chloride, Phosphate buffer, Polysorbate 20 | None | Proteins from cells used to grow virus (MRC-5 human cells, yeast cells), Formalin, Neomycin sulfate |
*Information from package insert dated: 4/2023
Reviewed by Paul A. Offit, MD, on December 16, 2024