Active substance

Dextromethorphan Hbr and Doxylamine Succinate

2 products from 1 companies contain this in United States.

2 without prescriptionKitTablet, Chewable

Available without a prescription

Mucinex Childrens Mighty Chews Cough Daytime and Nighttime Combo PackWithout prescriptionKit Reckitt Benckiser LLC · Dextromethorphan Hbr and Doxylamine Succinate Mucinex Childrens Mighty Chews Cough Nighttime10 mg + 6.25 mgWithout prescriptionTablet, Chewable Reckitt Benckiser LLC · Dextromethorphan Hbr and 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.