| Simparica Trio For Dogs 22.1-44 Lbs Teal 12 Chews. "Simparica Trio is a multi-spectrum monthly treatment that provides all-around protection. The chewable formula provides protection against fleas, ticks, heartworms, and intestinal worms such as roundworms and hookworms."... - Simparica Trio For Dogs 22.1-44 Lbs Teal 12 Chews. |