Active substance

Dextromethorphan Hydrobromide + Guaifenesin + Menthol

3 products from 2 companies contain this in Canada.

3 without prescriptionsyrup

Available without a prescription

BENYLIN EXTRA STRENGTH COUGH & CHEST CONGESTION15 mg + 200 mg + 15 mgWithout prescriptionsyrup Kenvue Canada Inc. · Dextromethorphan Hydrobromide + Guaifenesin + Menthol · R05FA02 BENYLIN EXTRA STRENGTH MUCUS & PHLEGM PLUS COUGH CONTROL15 mg + 200 mg + 15 mgWithout prescriptionsyrup Kenvue Canada Inc. · Dextromethorphan Hydrobromide + Guaifenesin + Menthol · R05FA02 BUCKLEY'S COUGH AND MUCUS RELIEF EXTRA STRENGTH30 mg + 400 mg + 40 mgWithout prescriptionsyrup Haleon Canada Ulc · Dextromethorphan Hydrobromide + Guaifenesin + Menthol · R05FA02

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.