It was showed from the anti virus experiment in vitro that 8mg crude drug/ml of Guizhi decoction could inhibit cytopathy induced by 10 strains of viruses associated with respiratory infection at the different extents.

• 体外抗病毒实验发现，桂枝汤8mg生药/ml对与呼吸道感染有关的10株病毒致细胞病变均有不同程度的抑制作用。