The category Pets | Dog | Flea and Worming | Heartworms is an important part of caring for your pet. Heartworms are a serious and potentially fatal disease, spread by mosquitoes, that can affect dogs, cats, and other animals. To protect your pet from this disease, it is important to use preventative medications, such as monthly heartworm preventatives, and to have regular heartworm tests done at the vet. In this category, you will find a range of products to help protect your pet from heartworms, including monthly preventatives, spot-on treatments, and chewable tablets. You can also find products to help treat existing heartworm infections, such as slow-release tablets and injections. With the right products and regular vet check-ups, you can help keep your pet safe from heartworm disease.