Chaihu Injection (CI), which is widely used in treatment of febrile diseases, is an aqueous solution of Chaihu (Radix Bupleuri Chinensis) or Nanchaihu (Radix Bupleuri Scorzonerifolii) prepared by steam distillation.
Publication
Zhong xi yi jie he xue bao = Journal of Chinese integrative medicine, 2010, Vol 8, Issue 12, p1124