Sentinel for Dogs is a pork-liver-flavored tablet for dogs that provides protection against both external and internal parasites in four weeks and older puppies and dogs that weigh two pounds or more
Sentinel flavor tabs are monthly oral treatments for dogs that provide protection against five different parasites, such as fleas, heartworms, hookworms, roundworms, and whipworms. When administered monthly, Sentinel for dogs, prevents flea eggs from hatching and thus controls flea population. This easy-to-give flavored tablets eliminates heartworm disease and treats and controls various gastrointestinal worm infections including hookworms, roundworms, and whipworms.
Sentinel three in one formula works great for my dizi, I am happy with the result