Sentry Advance Guard2 for Dogs over 55 lbs (4 count)

Sentry Advance Guard2 for Extra Large Dogs over 55 lbs is a once-a-month topical treatment for fleas, flea eggs & larvae. For extra large dogs and puppies 7 weeks or older. Waterproof and starts working through contact. 

Contains 9.1% Imidacloprid and 0.46% Pyriproxyfen, the active ingredients used in Advantage II.

Important- DO NOT use on cats! Keep cats away from treated dogs for 24 hours.