Objective To understand the chemical components and clinical pharmacological function for developing Houttuynia cordata ratio- natly. Methods The chemical components and pharmacological effects of Houttuynia cordata are summarized by reviewing the rarious retated literatures. Results The chemical components in Houttuynia cordata are complex, and the clinical pharmacological function of Houttuynia cordata is good. It has a few adverse reactions. Conclusion Houttuynia cordata is an excell...