OPHTHALMIC PREPARATION AND METHOD OF ITS PREPARING Russian patent published in 2003 - IPC

FIELD: medicine, ophthalmology, pharmacy. SUBSTANCE: ophthalmic preparation consists of riboflavin, ascorbic acid, boric acid, collagen, nipagine and purified fresh-boiled water. Sterile solution of ophthalmological agent is subjected for lyophilization. Method involves dissolution of riboflavin in fresh-boiled and purified in heating water, addition of boric acid and nipagine to hot solution followed by cooling and addition of ascorbic acid, stirring and dissolving. Then collagen is added on surface of solution and solution is remained up to complete dissolving, stirred, volume is brought about with fresh-boiled purified water and lyophilized. Invention provides prolonged effect of drug and fitness time. EFFECT: enhanced quality and improved properties of preparation. 2 cl, 1 tbl, 1 ex