(Corta Flx) Corta-Flx Senior Horse Pellets combine the power of Corta-Flx with supportive vitamins, minerals and live naturally occurring microorganisms. Corta-Flx Senior Horse provides essential joint supplementation and maximum digestive support for older horses in apple and molasses flavored pellets. Feed 2 oz. daily for the first 5 days, followed by 1 oz. daily for maintenance.