This is an over the counter product - it does not require prescription.

An easily digested, highly palatable, nutrient rich dietary supplement for horses. Formulated with all-natural whole foods, chosen for their nutrient profile and synergistic effects. Includes omega-3 and -6 essential fatty acids for healthy skin & coat, and balanced energy levels; enzymes and probiotics to maintain normal digestion; fiber for bowel health; phytonutrients, vitamins & minerals for overall health and well being. The Veterinary Formula contains more Omega-3 than the regular Missing Link. Dosage: Top-dress 1/4 - 1 cup on the daily feed according to body wt. 5 lb will last about 2 months.