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Excipients in Routinely Recommended Vaccines

Updated April 7, 2025

Tags: excipients, ingredients

The information in this table is for vaccines recommended in the US.

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- Excipients in Vaccines Not Routinely Recommended in the US

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Excipient	Purpose	Vaccine Name	Vaccine Type	Amount per 0.5 mL Dose (unless otherwise noted)
Mannitol	Stabilizer	Abrysvo	RSV	22.5 mg
Polysorbate 80	Surfactant	Abrysvo	RSV	0.08 mg
Salts, Mineral	Adjust tonicity	Abrysvo	RSV	1.1 mg sodium chloride
Sucrose	Stabilizer	Abrysvo	RSV	11.3 mg
Tromethamine	Stabilizer	Abrysvo	RSV	0.11 mg
Tromethamine Hydrochloride	Stabilizer	Abrysvo	RSV	1.04 mg
Ammonium Sulfate	Protein Purifier	ActHIB	Hib	Ingredient in purification
Bovine Casein	Medium Nutrient	ActHIB	Hib	Amount not specified in package insert
Formaldehyde	Inactivating Agent	ActHIB	Hib	<0.5 mcg
Salts, Mineral	Adjust tonicity	ActHIB	Hib	0.4% sodium chloride in diluent

Showing 1 to 10 of 459 entries

This information is correct to the best of our knowledge. Please report inaccuracies to us at dsalmon1@jhu.edu. This table was last updated on April 7, 2025 | © 2025 Institute for Vaccine Safety

Institute for Vaccine Safety
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