Patent ID: RE40882

Claim:
An antiviral drug presented as nasal drops comprising genetically engineered alpha, beta or gamma interferon, at least one biocompatible polymer selected from the group consisting of polyvinyl pyrrolidone and polyethylene oxide, and a biocompatible antioxidant the drug viscosity being 11-300 Pascal second , said antioxidant being TRILON B® ( disodium salt of ethylenediaminetetraacetic acid ) , wherein the antiviral drug comprises per ml of a buffered saline solution: the genetically engineered alpha, beta, or gamma interferon in an amount of 1 , 000 - 500 , 000 IU; the at least one biocompatible polymer in an amount of 0 . 005 - 0 . 714 g; and the antioxidant in an amount of 0 . 0001 - 0 . 0008 g .