Active substance

Acetaminophen + Dextromethorphan Hydrobromide + Pseudoephedrine Hydrochloride + Guaifenesin + Chlorpheniramine Maleate

5 products from 3 companies contain this in Canada.

5 without prescriptionsyrupliquid

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.