Simparica Chewables for Dogs vs Simparica Trio Chewable Tablets for Dogs

Simparica Chewables is a single-ingredient flea and tick chew; Simparica Trio adds heartworm, roundworm and hookworm coverage in the same monthly dose. Trio is the better all-in-one for most owners, and it can start at 8 weeks versus 6 months for plain Simparica. Plain Simparica gives a higher sarolaner dose per pound and is the pick if your dog already gets a separate heartworm preventive. Both are liver-flavored chews owners report dogs take readily, and both carry a prescription requirement.

• Choose the Simparica Chewables if your dog already takes a separate heartworm preventive and you only need flea and tick control.
• Choose the Simparica Trio if you want one monthly chew to cover fleas, ticks, heartworm, roundworms and hookworms, or you have a puppy at least 8 weeks old.