Sergeants Evolve 21 Flea & Tick Squeeze On, For Dogs, 21 39 Lbs

3 month supply. For use only on dogs 21-39 lbs 12 weeks of age or older. Starts to kill fleas & ticks in just 15 minutes. Kills & repels fleas; ticks. Kills flea eggs; flea larvae. Repels mosquitoes. If you have questions or comments about this product, please write: Sergeant's Consumer Response, PO Box 540399, Omaha, NE 68154-0399. In Case of an Emergency, Call: 1-800-781-4738. Non-Emergency, Call: 1-800-224-Pets (7387).