METHOD OF PRODUCING PHARMACEUTICAL DELIVERY SYSTEM Russian patent published in 2019 - IPC A61K9/16 A61K9/20 A61K31/00 A61K31/167 A61K47/02 A61J3/10 

Abstract RU 2693491 C2

FIELD: medicine; pharmaceuticals.

SUBSTANCE: present invention relates to a method of producing a pharmaceutical delivery system. Method involves formation of calcium carbonate with a reaction-modified surface, which is a product of reaction of natural ground or precipitated calcium carbonate with carbon dioxide and one or more acids in an aqueous medium, wherein carbon dioxide is formed in-situ during acid treatment and/or is supplied from an external source. Said calcium carbonate is mixed with pharmaceutically active agent and auxiliary additive, the mixture is compacted by means of roller compactor at pressing pressure from 4 to 20 bar, then, compacted by rolling method is pressed to produce pharmaceutical delivery system, which is a tablet, mini-tablet, capsule or granule.

EFFECT: use of calcium carbonate with a reaction-modified surface provides improved brittleness and flowability of the pharmaceutical delivery system.

15 cl, 3 dwg, 3 tbl

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RU 2 693 491 C2

Authors

Atria, Susanna

Stirnimann, Tanja

Puchkov, Maxim

Huwyler, Joerg

Dates

2019-07-03Published

2015-12-16Filed