Hyodeoxycholic Acid Sodium Salt is primarily used in the pharmaceutical industry as an active ingredient in medications aimed at treating gallstones. It works by dissolving cholesterol-based gallstones, particularly in patients who cannot undergo surgery. This compound is also utilized in research settings to study bile acid metabolism and its role in liver and digestive health. Additionally, it has applications in the development of drugs targeting metabolic disorders and liver diseases. Its efficacy in modulating bile acid pathways makes it a valuable component in therapeutic and experimental contexts.