ZODIAC INFESTOP PLUS FLEA & TICK TOPICAL SOLUTION FOR DOGS UNDER 4.5kg. If you prefer the use of topicals, ZODIAC Infestop PLUS for Dogs Under 4.5 kg offers an easy to use, effective and economical alternative. These products are designed to be used Once-A-Month. TRUSTED/PROVEN: VET TECHNOLOGY* *SAME ACTIVE INGREDIENT AS IN K9 ADVANTIX. AVAILABLE WITHOUT A VISIT TO THE VET. Flea & Tick Adulticide. Rapidly kills fleas. Controls fleas and ticks within 1 day of treatment. Protects for up to 4 weeks. The successive feeding activity of fleas on pets may elicit a hypersensitivity skin disorder known as flea allergy dermatitis (FAD). Treatment of pets with Zodiac Infestop Plus Flea & Tick Topical Solution for Dogs 11 - 25 KG Flea and Tick Adulticide rapidly kills fleas and may reduce incidence of this condition. FOR USE ONLY ON DOGS & PUPPIES 4.5 KG AND UNDER DO NOT USE ON CATS OR KITTENS. TOXIC TO CATS. KEEP OUT OF REACH OF CHILDREN. READ THE LABEL AND INSERT BEFORE USING. 4 MONTH SUPPLY