METHOD OF PREPARING AN AQUEOUS SUSPENSION AND AN AQUEOUS OPHTHALMIC PREPARATION Russian patent published in 1997 - IPC

Abstract RU 2098094 C1

FIELD: medicine, ophthalmology, pharmacy. SUBSTANCE: an aqueous stable suspension has 5-(3-ethoxy-4-n-pentylhydroxyphenyl)-thiazolidine-2,4-dione and can be prepared by addition of acid to an aqueous solution containing one or more compounds taken from the group consisting of polyvinyl alcohol, polyvinylpyrrolidone, hydroxypropylmethylcellulose, methylcellulose and hydroxyethylcellulose and 5-(3-ethoxy-4-n-pentylhydroxyphenyl)-thiazolidine-2,4-dione at pH = 8, not less, to control pH value of the indicated solution to 7, not above. Suspension is used as eye drops for keratopathy and other ophthalmic illness treatment. EFFECT: improved method of preparing, enhanced effectiveness of preparation. 6 cl, 5 tbl

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RU 2 098 094 C1

Authors

Khisajuki Nakajama[Jp]

Kazumiti Usio[Jp]

Katsukhiro Inada[Jp]

Dates

1997-12-10Published

1992-11-26Filed