Active substance

Dextromethorphan Hydrobromide + Phenylephrine Hydrochloride

3 products from 2 companies contain this in Canada.

3 without prescriptionliquidsyrup

Available without a prescription

COUGH SYRUP DM DECONGESTANT15 mg + 5 mgWithout prescriptionliquid Jamp Pharma Corporation · Dextromethorphan Hydrobromide + Phenylephrine Hydrochloride · R05DA20 COUGH SYRUP DM DECONGESTANT FOR CHILDREN7.5 mg + 5.0 mgWithout prescriptionliquid Jamp Pharma Corporation · Dextromethorphan Hydrobromide + Phenylephrine Hydrochloride · R05DA20 DAYQUIL KIDS10 mg + 5 mgWithout prescriptionsyrup Procter & Gamble Inc · Dextromethorphan Hydrobromide + Phenylephrine Hydrochloride · R05DA20

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.