Lextron Animal Health in San Antonio is a division of Lextron. Lextron markets and distributes animal health products. The company distributes for all major brand animal health products. It also markets more than 150 products under the Aspen and Cooper's Best label. The company s products include pharmaceuticals, biologicals, implants, insecticides, rodenticides, anthelmintics, cleaning and sanitizing agents, poultry equipment and supplies, and specialty products. Lextron has its headquarters in Greeley, Colo., and several divisions throughout the United States.