What preventative treatment protects dogs from internal intestinal parasites?

The story behind the answer

Deworming medication is designed to kill or expel internal intestinal parasites—such as roundworms, hookworms, whipworms, and some tapeworms. Flea and tick prevention targets external parasites, vaccines prevent infectious diseases, and probiotics support gut microbes but don’t eliminate worms. So to prevent and control intestinal parasites, dewormers are the correct tool.

Why it matters: Puppies often acquire roundworms from their mothers (via placenta or milk), and dogs can pick up eggs from contaminated soil or prey. Some of these parasites are zoonotic, posing risks to people. Vets recommend routine fecal exams and scheduled deworming or monthly preventives. Memory tip: “Outside = flea/tick; inside = deworm.” Protect the gut, protect the pup—and the household.