Active substance
Dextromethorphan Hbr 20mg Guaifenesin 400mg
2 products from 2 companies contain this in United States.
2 without prescriptionTablet
Available without a prescription
Mucus Relief Dm20 mg + 400 mgWithout prescription Pioneer Life Sciences, LLC · Dextromethorphan Hbr 20mg Guaifenesin 400mgMucus Relief Dm20 mg + 400 mgWithout prescription NUVICARE LLC · Dextromethorphan Hbr 20mg Guaifenesin 400mg
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.