"Japanese flu drug 'clearly effective' in treating coronavirus, says China ...Zhang Xinmin, an official at China’s science and technology ministry, said ..

  "Japanese flu drug 'clearly effective' in treating coronavirus, says China ...Zhang Xinmin, an official at China's science and technology ministry, said favipiravir, developed by a subsidiary of Fujifilm, had produced encouraging outcomes in clinical trials in Wuhan and Shenzhen involving 340 patients."

https://www.theguardian.com/world/2020/mar/18/japanese-flu-drug-clearly-effective-in-treating-coronavirus-says-china