It is approved for use in flu outbreaks and has been deployed to treat Ebola, but now Avigan is being trialled as a potential coronavirus treatment, reports AFP. Here are some questions and answers about the anti-viral medication:
What is Avigan?
Avigan is the brand name of the drug favipiravir. It was developed by what is now known as Fujifilm Toyama Chemical and approved for use in Japan in 2014.
But in Japan, it is only approved for use in flu outbreaks that aren't being effectively addressed by existing medications. It is not available on the market and can only be manufactured and distributed at the request of the Japanese government. Favipiravir works by blocking the ability of a virus to replicate inside a cell.
There are some safety concerns: it has been shown in animal studies to affect foetal development, meaning it is not given to pregnant women, and some doctors say they would not recommend it for children or adolescents.
How is it being used to treat coronavirus?
Some doctors began trying favipiravir to treat coronavirus patients early on, reasoning that its anti-viral properties would be applicable.