METHOD FOR PREPARING SPHERICAL GRANULES Russian patent published in 2004 - IPC

Abstract RU 2221553 C2

FIELD: drug formulation. SUBSTANCE: spherical granules containing at least 50% active substance having water solubility at least 0.5 g/ml are prepared by water granulation of active substance-containing mixture, extrusion, imparting spherical shape to granulate, and drying spherical granules. Starting mixture further contains up to 50% of combination of microcrystalline cellulose with average particle size 15-25 mcm and substituted hydroxypropylcellulose with average particle size 15-25 mcm, weight ratio of the two ingredients varying between 4:6 and 6:4. EFFECT: allowed introduction of high active substance doses into capsules and tablets. 7 cl, 5 ex

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RU 2 221 553 C2

Authors

Bartolomeus Iogannes Khajnrikh

Tsigler Iris

Dates

2004-01-20Published

2000-01-17Filed