71 cases of common cold were treatedwith Chinese midicine“Common cold mix-ture”in Nov.1977—Jan.1978. It was mar-kedly efficacious in 56 cases（78.8%）;effi-cacious in 15 cases（21.2%）.The resultsconfirme that“Common cold mixture”is ef-fective in the treatment of common cold.Inorder to elucidate the mechanism of action

its effects on the lethal Sendal virus infec-tion and sheep red cell antibody responsewere studied in mice.Preliminary resultsindicate that this mixture has the capacityto protect mice from Sendal virus infectionand to inhibit the 19S sheep red cell anti-body response in mice.