Avigan: Fujifilm Toyama Chemical's Avigan is an influenza treatment and a broad-spectrum antiviral drug.

Avigan outperformed another antiviral drug called arbidol in a trial conducted in China, according to a recent report of those findings. The flu drug helped COVID-19 patients recover seven days faster than the patients on arbidol and reduced the frequency of symptoms like coughing and fever. The drug is not approved in the US.

A couple of ongoing studies in China are projected to finish in late April or May.

Read more about Avigan.