Simparica is a flavored chewable tablet for dogs, providing fast-acting treatment against fleas and ticks, effective for a month after administration. It begins killing fleas within 3 hours and ticks within 8 hours, and is suitable for dogs 6 months or older and weighing more than 2.8 lbs. Monthly treatment can be given directly or mixed with food, and it's important to treat all pets in the household to prevent infestations.