In anti-pruritus assay, Qufeng Zhiyang tincture could decrease scratching frequency and duration induced by dextran and increase itch-threshold of cavy caused by histamine phosphate.

• 止痒试验显示，祛风止痒酊能明显降低右旋糖酐诱导的小鼠搔痒发作次数及搔痒持续时间，并能增加豚鼠耐受磷酸组胺的致痒阈。