Researchers behind a new study found widespread resistance to benzimidazole-based dewormers in Australia, which are commonly used to treat dogs with parasites that can also spread to humans.

Best oral parasite preventive Our pick for best oral parasite preventive is Trifexis, a chewable tablet you give your dog monthly to treat and control hookworms, roundworms, and whipworms.

You may also notice behavioral changes in your dog, like scooting and a decreased appetite. Intestinal worms, also known as intestinal parasites ... has worms and how to treat and prevent them ...