小儿退热液在体外细胞培养上，能抑制或延缓流感等病毒所致的细胞病变作用；对体内流感病毒所引起的小鼠肺炎，抑制作用较为明显；免疫荧光试验证明，其能十分明显地抑制小鼠肺内流感病毒的增殖量；能较强地抑制与呼吸道感染有关的常见致病菌。 Pediatric antipyretic fluid can inhibit or delay the cytopathic effect caused by viruses such as influenza in cell culture in vitro; the inhibitory effect of influenza virus caused by influenza virus in vivo is more obvious; the immunofluorescence test proves that it is very obvious It inhibits the proliferation of influenza virus in mouse lungs; it can strongly inhibit common pathogens associated with respiratory infections.