Methods:TLC was used by the same Rf (a transplant) of the color for the identification,the content of uncaria alkaloid in rhynchophylline was determined by ultraviolet spectrophotometry.

• 有清热平肝、息风定惊的功效，可用于头痛眩晕、感冒夹惊、惊痢抽搐、妊娠子痢、高血压等的治疗，最新的研究表明钩藤碱还有抗血小板凝聚和抗血栓形成的作用[1]。