Fluid Flex is the perfect balance of the 3 most preferred active ingredients for healthy joint function - glucosamine HCl, chondroitin sulfate and potent antioxidants. It is in liquid formula for fast absorption. FEEDING DIRECTIONS: Shake well before using. To fill the reservoir on the bottle, loosen the cap slightly and squeeze the bottle. Volumes are marked on the reservoir. Feed with grain ration or orally with a dose syringe. For maintenance - feed 1 oz per day. For the first 5 consecutive days, feed 2 oz per day (loading dose).(Based on an 1100 lb. adult horse - feed more for larger horses and less for smaller horses.) | Farnam FluidFlex Equine Supplement | Size 64 oz