Active substance
Guaifenesin 400mg and Dextromethorphan Hbr 20mg
2 products from 2 companies contain this in United States.
2 without prescriptionTablet
Available without a prescription
Pharbinex-Dm400 mg + 20 mgWithout prescription Pharbest Pharmaceuticals, Inc. · Guaifenesin 400mg and Dextromethorphan Hbr 20mgPharbinex-Dm400 mg + 20 mgWithout prescription Ulai Health LLC · Guaifenesin 400mg and Dextromethorphan Hbr 20mg
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.