FIELD: medicine, pharmaceutics.
SUBSTANCE: invention refers to pharmaceutical industry and represents an antibacterial composition of chitosan and a gel former, containing polyvinyl alcohol, and/or glycerol, and/or polyethylene glycol and/or polyvinyl pyrrolidone, differing by the fact that the antibacterial agent is presented by low-molecular water-soluble chitosan of molecular weight 3.5 to 4.9 kDa in the amount of 0.01 to 10 wt %; the gel former is polyvinyl alcohol 2 to 15 wt %, and/or glycerol 10 to 90 wt %, and/or polyethylene glycol 1 to 20 wt %, and/or polyvinyl pyrrolidone 10 to 50 wt %; water is the rest.
EFFECT: invention provides high solubility and antibacterial activity of chitosan in the wide range of the medium acidity.
5 ex, 4 tbl, 3 dwg
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