ANTIMICROBIAL DRUG IN FORM OF COLLOIDAL SOLUTION, METHOD OF OBTAINING ANTIMICROBIAL DRUG IN FORM OF COLLOIDAL SOLUTION (EMBODIMENTS) Russian patent published in 2024 - IPC A61K33/38 A61K38/17 A61K47/10 A61K47/34 A61K9/10 A61P31/00 B82Y40/00 B82B1/00 B82B3/00 B01J13/00 

FIELD: pharmaceuticals.

SUBSTANCE: antimicrobial drug in the form of a colloidal solution is disclosed, the said drug includes silver proteinate, purified water, glycerine and polyvinylpyrrolidone with a molecular weight of 700,000 to 900,000 g/mol; characterized by an average particle size of colloidal silver from 20 to 32 nm, a size value of 50% of colloidal silver particles from 5 to 20 nm; average value ζ — potential of colloidal silver particles from -0.3 to 0.83 mV, ratio of the following colloidal solution components: 1–5 wt.% of silver proteinate, 5–15 wt.% of glycerol, 0.1–0.5 wt.% of polyvinylpyrrolidone with a molecular weight of 700,000 to 900,000 g/mol, the rest is purified water. The methods of preparing an antimicrobial drug in the form of a colloidal solution are also disclosed.

EFFECT: group of inventions provides an increase in the antimicrobial drug in the form of a colloidal solution storage time after opening, in reducing the size of colloidal silver particles in the composition of an antimicrobial drug in the form of a colloidal solution while maintaining ζ-particle potential.

16 cl, 3 tbl, 6 ex