Interceptor Spectrum Chews for large dogs (22 to 45 kilograms) deliver monthly heartworm prevention and comprehensive intestinal worm treatment in a single tasty chew. Available in 3-pack and 6-pack options.

The blue-coded chews prevent heartworm infection and treat all five major intestinal worm types: roundworm, hookworm, whipworm, and two species of tapeworm. The 6-pack provides a full six months of protection, ideal for owners who want to stay ahead of their dosing schedule. The palatable formulation is accepted by most dogs without resistance.

With both 3 and 6-pack options available, Interceptor Spectrum gives large dog owners flexibility in how they purchase their parasite prevention. The 6-pack offers convenience and typically better value per dose.