Active substance
Salmonella Typhi Ty2 Vi Polysaccharide Antigen
2 products from 2 companies contain this in United States.
2 prescription onlyInjection, Solution
Prescription only
Typhim Vi25 ug/.5mLPrescription only Sanofi Vaccines US Inc. · Salmonella Typhi Ty2 Vi Polysaccharide AntigenTyphim Vi25 ug/.5mLPrescription only A-S Medication Solutions · Salmonella Typhi Ty2 Vi Polysaccharide Antigen
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.