>>11481423favipiravir
"On March 17 it was found to be effective in treating the infection in two trials in Wuhan and Shenzhen"
"mechanism of its actions is thought to be related to the selective inhibition of viral RNA-dependent RNA polymerase"
"Favipiravir does not inhibit RNA or DNA synthesis in mammalian cells and is not toxic to them"
https://en.wikipedia.org/wiki/Favipiravirseems to work only if taken early, at later stages (in lungs) doesn't work very much