Separate and combined action of Dimethylsulfoxid (DMSO) and Rimantadin on the reproduction of phages T--3, T--4, T--7 and lambda was studied. The maximum activation of reproduction of phages T--3 and T--7 by DMSO was observed for 6 minutes of latent period. At the same time this compound did not render the action on reproduction phages T--4 and, because they utilize cell RNA-polimerase. It was shown that DMSO stimulated the synthesis of T--3 phage DNA by action on T--3 phage RNA-polymerase. Combined application of both DMSO and Rimantadin eleminated in some degree its reciprocal effect on T--3 phage macromoelecules synthesis and complet eliminated inhibitory action of Rimantidin on infective phage T--3 production.

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