FRONTLINE PLUS MEDIUM DOG 23-44# 3/PACK

Provides long-lasting, effective control of fleas and ticks on your dog. Kills up to 100% of existing fleas in less than 24 hours. Continues killing fleas for an entire month or more. Remains waterproof for 30 days, even if your dog swims or is bathed. Gentle enough for use on puppies 8 weeks of age or older. Contains two activeingredients that provide integrated flea control by breaking the flea life cycle. One ingredient (fipronil) kills the adult fleas on your pet and the other (s-methoprene) kills flea eggs and stops larval and pupal development.Fipronil 9.8%, (S) Methoprene 8.8%