Recently, Ma Jun, director of the Institute of Hematology of the First Hospital in Harbin, and 15 academicians and nationally renowned medical experts jointly issued a call to “stop using the more toxic drugs such as etidiumorphine” was approved. The State Drug Administration formally issued a ban on the drug and required the collection and destruction of ethosuximorpholine within six months.

　　According to Health News, the drug was banned internationally in 1984 because it could cause acute leukemia in 1,000 patients. However, because there is no official document in China, and this drug has remarkable effect on the treatment of psoriasis in a short period of time, and the price is also cheap, individual pharmaceutical companies and doctors still use the drug to formulate the treatment of ringworm drugs. According to statistics, there are tens of millions of patients with psoriasis in China, and every year some of them have leukemia due to the use of ethylene double morpholine. 15 years, more than 170 such patients have been admitted to the Blood Research Institute of the First Hospital in Harbin, and more than a hundred of them have died.