🐕 Shield your pup from pests with Frontline's ultimate defense! Convenient stick form for hassle-free use. Effective for pups as young as 9 weeks, ensuring early defense. Stay worry-free with 30 days of protection, rain or shine. Kills fleas, ticks, and lice at all life stages. Defend your furry friend with proven flea and tick repellency. For large dogs 41-80 lbs Repels ticks & fleas Waterproof for 30 days Frontline Shield Flea & Tick Treatment is a powerful solution designed for large dogs weighing between 41-80 lbs. This waterproof formula offers 30 days of protection against fleas, ticks, and chewing lice, effectively killing all life stages of these pests. Safe for puppies as young as 9 weeks, it ensures your pet stays protected from harmful infestations.