AN AQUEOUS ACRYLIC DISPERSION USING FOR ENTERAL DRUGS PRODUCING Russian patent published in 1998 - IPC

Abstract RU 2117475 C1

FIELD: pharmacy. SUBSTANCE: dispersion has the following components, wt. -%: copolymer of methacrylic acid with acrylic acid methyl ester and acrylic acid butyl ester 30-40; emulsifying agent 0.4-1.0, and water - the rest. Ratio of carboxylic and ester groups = 1:(1-1.5). Ratio of links in copolymer, wt.-%: methacrylic acid 39-46; acrylic acid methyl ester 30-49, and acrylic acid butyl ester 12-24. Drug coatings made of the proposed dispersion are soluble at pH 6.0 (not below) that excludes preearly dissolution of drugs in stomach. EFFECT: improved quality and property of dispersion. 2 tbl, 55 ex

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RU 2 117 475 C1

Authors

Seleznev L.G.

Kalashnikov V.A.

Troitskij V.S.

Petrovskaja T.N.

Ishchenko V.M.

Parfenova V.S.

Lobova S.I.

Druzhina S.V.

Sukharev A.A.

Davydov V.N.

Dates

1998-08-20Published

1995-11-02Filed