Pure Earth Products Equine GutFlush, 4-Ounce Gut Flush relieves abdominal pain related to colic quickly Will assists in relieving intestinal gas, GI Toxicity, Pain and discomfort and is a mild spasmodic Gut Flus is an all herbal blend that arrestors gut Motility and has been used since 1983 A must when trailering horses long distance Developed to work in unison with your horses body