A veterinary polyherbal pharmaceutical composition for treatment of gastric ulcers in horses, the composition comprising the following ingredients in the following weight ranges: TABLE-US-00001 Weight Range Composition (% by weight) Deglycerinized Licorice Root 30-50 Meadowsweet Herb 10-20 Marshmallow Root 10-15 Slippery Elm Root 0-5 Chamomile 15-20 Yarrow Leaf 0-5 Fenugreek Seed 0-5 Milk Thistle 5-10