GastroPrep EQ provides quick relief for pre-event gastric jitters. Near-instant support for all segments of the digestive tract. Acid neutralizers and soothing agents for the stomach. Probiotics for balanced GI flora. Prebiotics for hindgut support. Great for use before stressful situations or for horses showing signs of gastric discomfort. 1-2 Doses – 60cc Oral Paste.