Sodium dehydrocholate is primarily used in medical and pharmaceutical applications. It is commonly employed as a choleretic agent, which means it stimulates the production and flow of bile from the liver. This property makes it useful in treating conditions related to bile secretion, such as gallbladder disorders or bile duct obstructions. Additionally, it is used in diagnostic tests to assess liver function and bile flow. In some cases, it may also be utilized as a solubilizing agent in drug formulations to enhance the absorption of certain medications. Its role in promoting bile production and improving digestion underscores its importance in both therapeutic and diagnostic settings.