Heartworm, roundworm, hookworm and other intestinal worms can cause serious health problems for dogs. Diarrhoea, vomiting and weight loss can be signs that your furry friend may be struggling with parasites. If left untreated, they may cause bleeding, anaemia, poor immune function – even death. They can also be transmitted and cause distressing illness in humans. Protect your pet with effective worm treatments for dogs. PETstock carries a wide range of convenient and easy-to-use worm treatments for dogs from leading brands such as Milbemax, HeartGard, Drontal and ParaGard. Choose from monthly tablets, tasty meat-flavoured chews, worming syrups and suspensions for puppies. We stock allwormers plus products designed to treat and control specific parasites such as heartworm, so seek advice on the best worm treatment for your pet. Worm treatment for dogs must be given regularly as directed to ensure ongoing protection. The correct dose is determined by weight.