Pet D worm tablets dewormer flavored chewable is an easy-to-give dewormer that eliminates and controls roundworms, hookworms, and tapeworms in puppies and adult dogs. Contains active ingredients for fast, effective results. Pet D worm tablets dewormer Combo Tablets can be offered by hand, but if your dog does not take it voluntarily, you can hide the tablet in a small amount of food or place it in the back of your dog's mouth for swallowing. Safe for use in puppies 12 weeks or older and adult dogs.