You'll need a prescription for Drontal Plus from your veterinarian, and a vet visit is also important because your dog may have other parasites that even a broad-spectrum dewormer can't eliminate.

But if intestinal parasites are causing your dog’s loose stools, a broad-spectrum dewormer like Panacur (fenbendazole) would ...

Some pets will need annual checks for parasites and deworming, too. These visits can total up to $750 for cats and $1750 for dogs per year. Of course, the price for a yearly vet visit will vary ...