Zodiac Spot On Flea Tick Control for Large Dogs kills and repels fleas, ticks, and mosquitoes for 30 days. Contains (S)-Methoprene, Insect Growth Regulator (IGR), to kill flea eggs for up to one month. Longer application tip makes for an easy application to long-haired dogs.
Quantity: 4 applications for a 4 month supply.
Large: Recommended for dogs over 60 pounds.