Objective: To observe the analgesic effect of Total flavone of Abelmoschl Manihot L medic (TFA) and also to inspect when TFA was administered repeatedly and regularly, whether it would cause addiction.

• 目的 :研究黄蜀葵花总黄酮 (TotalFlavoneofAbelmoschlmanihotLmedic ,TFA)的镇痛作用及有无成瘾性。