Umifenovir is a potent, orally active broad-spectrum antiviral agent with activity against a number of enveloped and non-enveloped viruses. Umifenovir is used as an anti-influenza virus agent. Umifenovir could effectively inhibit the fusion of virus with host cells . Umifenovir is an efficient inhibitor of SARS-CoV-2 in vitro. Umifenovir shows anti-inflammatory activity.