Antiviral agent for nasal administration. Has antiviral activity against the influenza virus, blocking the binding of the virus to the surface of the cell membrane, prevents the reproduction of the virus in cells. To the action of dioxotetrahydroxytetrahydronaphthalene, viruses are also susceptible Herpes simplex, herpes zoster, adenoviruses, viruses of infectious warts and molluscum contagiosum.