Active substance
Guaifensin, Dextromethorphan
2 products from 2 companies contain this in United States.
2 without prescriptionTablet
Available without a prescription
Mucus Relief Xpect400 mg + 20 mgWithout prescription Selder, S.A. de C.V. · Guaifensin, DextromethorphanMucus Relief Xpect400 mg + 20 mgWithout prescription Midway Importing Inc. · Guaifensin, Dextromethorphan
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.