title: Pharmacokinetics comparative study of a novel Chinese traditional herbal formula and its compatibility.
abstract: BACKGROUND
  Da Chuan Xiong Decoction Compound preparation (DCXDCP), the formulation of a classical Chinese prescription recorded in "Xuanminglunfang", was clinically employed to treat migraine's disease.
  
  
  OBJECTIVE
  In order to investigate the influence of compatibility on the pharmacokinetics of the active ingredient gastrodin (GAS), the comparative evaluations on pharmacokinetics of DCXDCP with various combinations of its constituent herbs in plasma after oral administration were studied.
  
  
  METHODS
  The rats were randomly assigned to four groups and orally administered with different prescription proportion of Gastrodia elata Bl. and Ligusticum chuanxiong Hort. (1:0; 1:0.25; 1:2.1; 1:4.2), respectively. At different predetermined time points after administration, the concentrations of GAS in rat plasma were determined by using HPLC, and main pharmacokinetic parameters were investigated.
  
  
  RESULTS
  The results showed that the pharmacokinetic parameters, AUC and C(max) of GAS were dramatically different (p<0.05) after oral administration of G. elata Bl. and the different combinations of its constituent herbs.
  
  
  CONCLUSIONS
  These indicated that the compatibility effects of other ingredients present in DCXDCP could affect the pharmacokinetics of the prescription.
authors: Key Lab of Modern Preparation of Traditional Chinese Medicine, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China.
authors: Qin
authors: Q
authors: Zheng
authors: Peng-Fei
authors: PF
authors: Yue
authors: Bin
authors: B
authors: Wu
authors: Peng-Yi
authors: PY
authors: Hu
authors: Zhen-Feng
authors: ZF
authors: Wu
authors: Ming
authors: M
authors: Yang