Gastrointestinal disorders affect millions of people worldwide, creating ongoing demand for safe and effective therapies that support digestive health and improve quality of life. Active pharmaceutical ingredients such as Cinitapride and Domperidone are widely used to enhance gastrointestinal motility and relieve symptoms associated with functional digestive disorders, while Irsogladine Maleate is recognized for its gastric mucosal protective properties. Berberine has long been utilized for gastrointestinal and metabolic health applications, and Calamine is commonly incorporated into pharmaceutical and healthcare formulations for its soothing and protective benefits. With over 50 years of experience in pharmaceuticals and fine chemicals, Zhejiang Haizhou Pharmaceutical provides high-quality APIs, intermediates, and custom manufacturing services to global pharmaceutical partners. Backed by advanced production facilities, stringent quality systems, and international regulatory compliance, Haizhou Pharm supports the development and manufacture of reliable gastrointestinal therapies that meet the evolving needs of healthcare markets worldwide.