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Frontline Plus Topical Solution is a once a month topical application that controls adult fleas, flea eggs, flea larvae, flea pupae and ticks in cats. For cats at least 8 weeks of age, weighing at least 1.5 lbs.
Formulated with two active ingredients—fipronil and (S)-methoprene—to help disrupt the flea life cycle and inhibit future infestations. Frontline Plus is designed to be waterproof after 24 hours, fast-acting, and long-lasting.