Advantix II - Flea & Tick Medicine - Large Dogs

K9 Advantix II Flea & Tick Medicine – Large Dogs is a monthly topical treatment designed for dogs weighing approximately 21–55 lb (≈ 10–25 kg). It protects against fleas (including eggs and larvae), ticks, mosquitoes, lice and stable flies through contact — no biting required. This Canadian-approved product offers five-way protection and must be applied according to the label for safe and effective use. 

Key Features:

• Covers dogs weighing ≈ 21–55 lb (10–25 kg) for the large-dog size. 

• Kills fleas (all life stages), ticks, mosquitoes, lice and repels biting flies. 

• Monthly application required; waterproof after 24 hours and remains effective even after swimming or bathing. 

• Important Safety Note: Do not use on cats or kittens; dogs treated must have restricted contact with cats for 24–48 hours because product is toxic to felines. 

• Easy to apply: part the dog’s hair and apply the contents of the applicator directly onto the skin between the shoulder blades.