Zodiac Double Action Flea & Tick Shampoo for Dogs & Cats with Precor (IGR) Read more.
DOGS & CATS
The quickest way to kill a flea and tick is to expose them directly to a wet insecticide product like a shampoo or spray. Shampoos and sprays work fast because they are applied directly to the entire coat, penetrating to the skin, where fleas and ticks are usually found.