Pet owners using flea and tick control products should: Carefully read and follow the label directions. Use flea and tick control products only on the animal specified on the product label - dog products for dogs and cat products for cats. Use only the amount of product specified in the instructions based on the size and weight of your pet. Do not apply products to animals younger than the minimum age stated on the label. Discuss any concerns about the use of flea and tick products with a veterinarian or the product's manufacturer. A video on the safe use of flea and tick treatment is available on Health Canada's website.