**Your furry friend must have a current heartworm test result on file with your veterinarian in order to be prescribed heartworm medication. Please visit your veterinarian to have this test performed annually to protect your four-legged friend.** Interceptor flavor tabs are a monthly, broad-spectrum parasiticide prescribed by your vet to help prevent heartworm disease. Plus, it treats and controls adult roundworm, adult hookworm and adult whipworm. It comes in a tasty tablet form, so you can give it to your pet as a tasty treat, or add it to her food for a boost of flavor. **Proudly sourced directly from the manufacturer or their approved distributor. Guaranteed genuine and backed by the manufacturer.**