Walther Gastric Relief Gel - farm animal digestive aid. All-natural, ready-to-use gel for use as a quick aid for indigestion & poisoning of animals. Effective against diarrhea, bloating, poisoning, grain overload, colic, sudden change of feed. Magnesium trisilicate and thermally activated charcoal combine to make a highly adsorptive product. Pulls toxins and builds bulk in the intestinal tract, causing stools to thicken, reducing gastric gas. Dosage: Cattle and horses - 1 tube orally every 3 hrs; Calves & foals - 1/2 tube every 2-3 hrs.