"Japan is considering using Avigan, an anti-influenza medication developed by a unit of Fujifilm Holdings Corp., to treat patients of the novel coronavirus, health minister Katsunobu Kato said Saturday.
“We will do everything we can,” Kato said on a TV program, noting that there is no established treatment for COVID-19 yet. The drug is also known as Favipiravir."
https://www.japantimes.co.jp/news/2020/02/22/national/scienc...
https://en.wikipedia.org/wiki/Favipiravir