Active substance

Mercaptopurine

2 products from 2 companies contain this in Canada.

2 prescription onlytablet

Prescription only

MERCAPTOPURINE TABLETS USP50 mgPrescription onlytablet Sterimax Inc · Mercaptopurine · L01BB02 PURINETHOL50 mgPrescription onlytablet Teva Canada Limited · Mercaptopurine · L01BB02

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.