The main requirements for them are (1) high IFN-inducing activity, (2) absence
of side effects, (3) wide spectrum
of antimicrobial activity, (4) broad therapeutic security and, (5) good solubility in water and biologic liquids. IFN inducers stimulate IFN production in different cells and organs, and that determines the strategy for their application. Amixin (OOO "Lancepharm," Moscow, Russia) induces IFN-?/? production mostly in T cells. Cycloferon (NTFF "Polysan," St.