(Animal Healthcare) Pharmaceutic grade ground psyllium husks that create huge swell volume, gently surrounding the sharp granules of sand, dust and debris while lubricating their passage through the horse's system. Feed 3 heaping Tbsp. (2 oz) per day for 3 days, take 3 days off, and repeat pattern for up to 30 days. Maintain with 3 heaping Tbsp. once per week. Powder.