Ingredients in Influenza Vaccines
This page shows the ingredients in influenza vaccines currently available for use in the U.S.
Find out more about influenza and the vaccines that protect against it.
Inactivated, egg-based influenza vaccines
| Vaccine name* | Antigen | Adjuvant | Stabilizers | Preservatives | Residual byproducts |
|---|---|---|---|---|---|
| Afluria | Inactivated influenza viruses | None | Sodium chloride, Monobasic sodium phosphate, Dibasic sodium phosphate, Monobasic potassium phosphate, Potassium chloride, Calcium chloride | Thimerosal (multi-dose vials only) | Sodium, Taurodeoxycholate, Ovalbumin, Sucrose, Neomycin sulfate, Polymyxin B, Beta-propiolactone, Hydrocortisone |
| FluLaval | Inactivated influenza viruses | None | Phosphate buffered saline | None | Ovalbumin, Formaldehyde, Sodium deoxycholate, α-tocopheryl hydrogen succinate, Polysorbate 80 |
| Fluad | Inactivated influenza viruses | MF59 (Squalene, Polysorbate 80, Sorbitan trioleate, Sodium citrate dihydrate, Citric acid monohydrate) | See adjuvant ingredients list | None | Neomycin, Kanamycin, Hydrocortisone, Ovalbumin, Formaldehyde, Cetyltrimethylammonium bromide |
| Fluarix | Inactivated influenza viruses | None | Triton X-100, α-tocopheryl hydrogen succinate, Polysorbate 80 | None | Hydrocortisone, Gentamicin sulfate, Ovalbumin, Formaldehyde, Sodium deoxycholate |
| Fluzone | Inactivated influenza viruses | None | Phosphate buffered saline | Thimerosal (multi-dose vials only) | Triton X-100, Formaldehyde, Ovalbumin |
*Information from package insert dated: no date (Afluria, FluLaval, Fluad, Fluarix, Fluzone)
Recombinant influenza vaccine
| Vaccine name* | Antigen | Adjuvant | Stabilizers | Preservatives | Residual byproducts |
|---|---|---|---|---|---|
| Flublok | Hemagglutinin (HA) protein from influenza viruses | None | Sodium chloride, Monobasic sodium phosphate, Dibasic sodium phosphate, Polysorbate 20 | None | Proteins and DNA from cells and vector virus used to grow vaccine virus (Spodoptera frugiperda cells & baculovirus), Triton X-100 |
*Information from package insert dated: no date (Flublok)
Cell-culture based influenza vaccine
| Vaccine name* | Antigen | Adjuvant | Stabilizers | Preservatives | Residual byproducts |
|---|---|---|---|---|---|
| Flucelvax | Inactivated influenza viruses | None | Phosphate buffered saline | Thimerosal (multi-dose vials only) | Proteins and DNA from cells used to grow virus (Madin-Darby Canine Kidney (MDCK) cells), Polysorbate 80, Cetyltrimethylammonium bromide, β-propiolactone |
*Information from package insert dated: no date (Flucelvax)
Live, weakened influenza vaccine
| Vaccine name* | Antigen | Adjuvant | Stabilizers | Preservatives | Residual byproducts |
|---|---|---|---|---|---|
| FluMist | Live, weakened influenza viruses | None | Monosodium glutamate, Hydrolyzed porcine gelatin, Arginine, Sucrose, Dibasic potassium phosphate, Monobasic potassium phosphate | None | Ovalbumin, Gentamicin sulfate, Ethylenediaminetetraacetic acid (EDTA) |
*Information from package insert dated: 9/2024 (FluMist)
