Mediclarum
Active substance

Latrodectus Mactans

2 products from 2 companies contain this in United States.

2 prescription onlyKitPellet

Prescription only

AntiveninPrescription onlyKit Merck Sharp & Dohme LLC · Latrodectus MactansLatrodectus Mactans30CPrescription onlyPellet Boiron · Latrodectus Mactans

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.