For the stems and roots of the woody plant Naiteng or Tailleaf Naiteng. Harvesting in summer and autumn, vine stems, removing branches and leaves; Root, remove the roots. Wash thoroughly, let it moisten thoroughly, cut into sections or slices, and dry in the sun. That vine grows on the edge of valley forests or in shrubs at the foot of mountains, and is also cultivated in courtyards. Tailleaf vine is mostly found along mountain slopes or in shrubs at the edge of valley forests. That vine is distributed in Taiwan, Guangdong, Guangxi and other places. Tailleaf Vine is distributed in Zhejiang, Jiangxi, Fujian, Hunan, Guangdong, and Guangxi. Bitter taste, cool nature. Returning to the liver and bladder meridians. It has the effects of dispelling wind, dispersing blood stasis, relieving pain, diuresis, and reducing swelling. It is mainly used for treating rheumatism, rheumatism, pain caused by falls, various neuropathic pains, difficulty urinating, edema and other diseases.