This document summarizes various drugs used in veterinary gastroenterology, including: 1) Appetite stimulants, emetics, antiemetics, antiulcer drugs, prokinetics, and drugs for diarrhea treatment. 2) Details are provided on specific drug classes like H2 blockers, proton pump inhibitors, cytoprotective drugs, and motility regulators. 3) Cathartics and treatments for ruminal issues are also outlined, along with antifoaming agents and rumen modifiers.