Active substance

Codeine Phosphate + Pseudoephedrine Hydrochloride + Guaifenesin

3 products from 3 companies contain this in Canada.

3 prescription onlysyrup

Prescription only

CALMYLIN PSE WITH CODEINE3.3 mg + 30 mg + 100 mgPrescription onlysyrup Teva Canada Limited · Codeine Phosphate + Pseudoephedrine Hydrochloride + Guaifenesin · R05FA02 COUGH SYRUP WITH CODEINE3.3 mg + 30 mg + 100 mgPrescription onlysyrup Jamp Pharma Corporation · Codeine Phosphate + Pseudoephedrine Hydrochloride + Guaifenesin · R05FA02 COUGH SYRUP WITH CODEINE3.3 mg + 30 mg + 100 mgPrescription onlysyrup Cellchem Pharmaceuticals Inc. · Codeine Phosphate + Pseudoephedrine Hydrochloride + Guaifenesin · 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.