On this this Canada Revenue Agency (CRA) page it lists “Catheters, catheter trays, tubing, or other products needed for incontinence caused by illness, injury, or affliction.” as Eligible medical expenses you can claim on your tax return.
If you would like to double-check, you can contact the CRA directly. If you are in Canada or the United States, you can call the CRA at 1-800-959-8281. If you are elsewhere, you can call 613-940-8495. This page has more ways to contact the CRA: Contact the Canada Revenue Agency
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