RESUMEN
Objective:To investigate the clinical effects and main pharmacological actions of Pingantongluo Granules (Radix Paeoniae Alba, Rhizoma Gastrodiae, Radix Salviae Miltiorrhizae, Rhizoma Chuanxiong, Concha Haliotidis, etc.) for migraine with liver wind and blood stasis symptom. Methods: Randomized controlled trail, double blind and double dummy method were applied. Yuntongding Tablets was used as a control drug in clinical investigation and Routunding Tablets as a control drug in pharmacological experiment study. Results: The total effective rates of the treatment group and the control group were 95.0% and 83.3% for migraine and 80.0% and 61.6% for the liver wind and blood stasis symptom, respectively. Pinggantongluo Granules began to act on migraine in ( 11.75 ? 6.70 )h, and the control drug did in ( 18.30 ? 8.22 )h. There were a significant difference between two groups ( P