While most worms we think of reside in the intestinal tract, don’t overlook one of the most dangerous internal parasites: heartworm. Dogs and cats can contract heartworm disease through the bite ...

But it won’t protect against internal parasites, and some dogs may not like having an extra thing around their neck. This monthly over-the-counter topical repels fleas, ticks, flies, and ...

Dog dewormer FAQs Although different parasite preventives cover many different parasites, no one product covers every single internal and external parasite that could affect your dog. Talk to your ...