Active substance
Hepatitis a Vaccine, Inactivated
2 products from 1 companies contain this in United States.
2 prescription onlyInjection, Suspension
Prescription only
Vaqta25 [iU]/.5mLPrescription only Merck Sharp & Dohme LLC · Hepatitis a Vaccine, InactivatedVaqta50 [iU]/mLPrescription only Merck Sharp & Dohme LLC · Hepatitis a Vaccine, Inactivated
Same substance is not the same product. Strength, form, release mechanism and other ingredients all differ. Whether one can replace another is a decision for a pharmacist.