METHOD FOR PREPARING STEROIDS AS CRYSTALS, STEROID CRYSTALS, PHARMACEUTICAL COMPOSITION Russian patent published in 2008 - IPC C07J1/00 A61K31/56 

Abstract RU 2315056 C2

FIELD: pharmaceutical technology, pharmacy, steroids.

SUBSTANCE: invention describes a method for preparing steroid crystals showing the mean coarseness in desired limits from 1 to 25 mcm and without exceeding the required value. Method for preparing involves wetted grinding a steroid supersaturated solution in the crystallization process by using a device for carrying out this process resulting to preparing suspension of primary grains followed by its heating. Also, the claim describes crystals prepared by the proposed method and pharmaceutical composition containing these crystals based on steroid crystals.

EFFECT: improved preparing method.

12 cl, 7 tbl, 2 dwg, 11 ex

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RU 2 315 056 C2

Authors

Grave Detlef

Gerekke Khagen

Khezel' Peter

Ajkhardt Annette

Glizing Zabine

Mjuller Uve

Dates

2008-01-20Published

2003-04-22Filed