Active substance
Dextromethorphan Hydrobromide, Guaifenesin, Doxylamine Succinate
2 products from 1 companies contain this in United States.
2 without prescriptionKit
Available without a prescription
Robitussin Day and Night Cough Relief Dm MaxWithout prescription Haleon US Holdings LLC · Dextromethorphan Hydrobromide, Guaifenesin, Doxylamine SuccinateRobitussin Day and Night Maximum Strength Cough DmWithout prescription Haleon US Holdings LLC · Dextromethorphan Hydrobromide, Guaifenesin, Doxylamine Succinate
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.