PetLock MAX Medium Dog - 4 Count

Keep your dog free of fleas and ticks with PetLock Max for Dogs Topical Treatment for Extra Large Dogs. This monthly topical treatment offers 5-way protection against fleas, ticks, biting flies, mosquitoes and lice. Easy to administer, it contains the same active ingredients used in K9 Advantix II. For dogs 11-20 lb.
Features:
Repels and kills ticks, fleas and mosquitoes
Prevents reinfestations by killing adult fleas before they lay eggs
Targets all life stages
Remains effective following swimming and/or shampooing
Easy to apply 

Active Ingredients:
Imidocloprid 8.80%
Permethrin 44.00%
Pyriproxyfen 0.44%