Hot cinnamon taste helps stop wood chewing habits in horses Spray, paint, roll or brush on surfaces where horses chew, such as fences, corrals, stalls, mangers, gates, posts and tree bark. Keeps horses from chewing blankets and bandages Clear liquid won't stain white fences or discolor other painted surfaces. 12.5 oz. Aerosol Can. In the last 53 years, Farnam has grown from a small mail-order business to one of the most widely recognized names in the animal health care industry. The Horse products category has grown so successfully over the years, that Farnam is today the largest marketer of equine products in the country. Farnam Horse Products now sells its products to distributors and mass merchants in the United States, Puerto Rico, and several foreign countries including Canada, countries in Central and South America, Europe and the Middle and Far East. Farnam's Horse Products serves both the pleasure horse and performance horse markets. Farnam equine products are sold to distributors, mass merchants, and mail order catalogs who either sell to retailers or directly to horse owners. Products include fly control, nutritional supplements, hoof and leg care, grooming, wound treatments, leather care and stable supplies.