Active substance

Acetaminophen, Dextromethorphan Hydrobromide and Doxylamine Succinate

7 products from 6 companies contain this in United States.

7 without prescriptionCapsule, Liquid FilledCapsuleLiquidKit

Available without a prescription

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.