The Pest Management Regulatory Agency of Health Canada has informed the college that their inspectors have found unregistered pesticides used for pets during pharmacy inspections.
Products used on pets that are applied topically (e.g., shampoos or sprays) for the control of arthropods are regulated as pesticides, whereas products given orally to control topical and internal pests are regulated as drugs. Flea and tick shampoos, crack and crevice flea sprays and personal insect repellents are all categorized as pesticides.
You can check the regulatory status of products in Canada on Health Canada’s website.