A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
167/263
A61K 31/19 (2006.01) A23L 1/304 (2006.01) A61K 9/46 (2006.01) A61K 33/06 (2006.01)
Patent
CA 1281289
ABSTRACT OF THE DISCLOSURE A calcium citrate composition having a bulk density greater than about 1.1 g/cc. Citric acid and a calcium compound are mixed to produce a mixture having a calcium compound/citric acid molar ratio of about 1.5. A hydrated mixture percent is produced by agitatively adding water to the mixture, although when desired the calcium compound, citric acid and water may be mixed in one step. The hydrated mixture is blended to facilitate the reaction of citric acid with the calcium compound and to form a granulated mass primarily consisting of granules with diameters between about 1/64 inch (39.7 mm) and about 1/16 inch (159.0 mm). The granulated mass is then dried to a moisture content of between about 10 weight percent and about 13 weight percent to produce a calcium citrate composition having a bulk density greater than about 1.1 g/cc. For calcium citrate tablets this calcium citrate composition is formed into a tableting composition by subjoining one or more tableting binders. The tableting composition is then fed through a multiple-station tablet press to form high density calcium citrate tablets. The high density calcium citrate tablets are greater than about 15 weight percent calcium and have a calcium/ citrate molar ratio of about 1.5. Such tablets charac- teristically have a density greater than about 1.5 g/cc and may, for aesthetic or other purposes, be coated with mixtures comprising substances such as sugar, polyvinyl- pyrrolidone, calcium carbonate and titanium dioxide.
532045
Alexandrides George
Pak Charles Y.c.
Walsdorf Neill B.
Finlayson & Singlehurst
Mission Pharmacal Company
The Board Of Regents Of The University Of Texas System
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