FIELD: medicine. SUBSTANCE: remedy is individual substance of D- glucosamine hydrochloride obtainable in chitin hydrolysis with concentrated hydrochloric acid, chitin being utility waste in shrimp and krill processing. Method involves carrying out chitin hydrolysis with concentrated hydrochloric acid (1: 10) during 2 h at water bath temperature of 75 C. Hydrolysate is thinned with water. Hydrolysis is performed together with purification with activated carbon at 60 C. The hydrolysate is boiled down in vacuum with temperature being not higher than 60 C until the residual liquid quantity is 15% of initial hydrochloric acid quantity. The target product is separated by its crystallization from acid water solution in continuous stirring up. EFFECT: enhanced purity; enhanced effectiveness in treating heavy cases of arthroses. 1 tbl
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