Active substance

Acetaminophen + Diphenhydramine Hydrochloride + Pseudoephedrine Hydrochloride

3 products from 3 companies contain this in Canada.

3 without prescriptiontablet

Available without a prescription

ALLERGY SINUS HEADACHE CAPLETS500 mg + 12.5 mg + 30 mgWithout prescriptiontablet Tanta Pharmaceuticals Inc · Acetaminophen + Diphenhydramine Hydrochloride + Pseudoephedrine Hydrochloride · N02BE51 BENADRYL ALLERGY500 mg + 25 mg + 30 mgWithout prescriptiontablet Kenvue Canada Inc. · Acetaminophen + Diphenhydramine Hydrochloride + Pseudoephedrine Hydrochloride · N02BE51 EXTRA STRENGTH ALLERGY TOTAL500 mg + 25 mg + 30 mgWithout prescriptiontablet Vita Health Products Inc · Acetaminophen + Diphenhydramine Hydrochloride + Pseudoephedrine Hydrochloride · N02BE51

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.