

Learn more about how Insider Reviews tests and researches pet products. Many of these treatments also require a prescription from your veterinarian. They can advise you on what product might be best depending on your dog's temperament, lifestyle, and the most common parasites where you live.

Read more about how we selected products at the end of this guide.īefore you begin treatment, your veterinarian should do a fecal test to determine what type of worms your dog has. With guidance from veterinarians, we chose the best dog dewormers based on their safety, efficacy, number of parasites targeted, and ease of use. Some products also kill fleas, ticks, and heartworms. Dog dewormers kill the parasites your pet already has, and intestinal parasite preventives prevent future infections. It's important to get rid of worms in dogs quickly and safely, but choosing parasite prevention can be difficult. Some worms, like roundworms and hookworms, can also infect humans. Common intestinal parasites in dogs include roundworms, tapeworms, and hookworms. Intestinal parasites, often called worms, are microscopic organisms that live inside your dog where they silently cause harm. When you buy through our links, Insider may earn an affiliate commission.
