Broadline Spot on Solution is the most comprehensive parasite control for cats. Innovate Technology for the broadest spectrum protection. A unique formulation offering both systemic and topical modes of action to target major parasites. Cats can pick up fleas, ticks and worms throughout the year, becoming re-infested whenever they are exposed to a contaminated environment. Your cat's risk of exposure depends on his/her lifestyle and the risk of different parasites. It's important to remember that it's not enough just to treat cats once against parasites, they need regular protection throughout the year. Containing two active ingredients that target fleas and ticks and two that destroy the main types of worms affecting cats, allowing you to target fleas, ticks and worms all at the same time