(Farnam) Adams Plus Flea & Tick Shampoo with Precor kills fleas, ticks and lice on contact. Kills flea eggs for 28 days. Cleans, deodorizes and leaves coat soft and shiny. Adams Plus Flea & Tick Shampoo with Precor contains 0.15% pyrethrins, 0.10% s-methoprene and 1.50% piperonyl butoxide. For use on dogs, cats, puppies and kittens 12 weeks of age and older.