Aliphatic or fatty acid esters as a solventless carrier for pharmaceuticals
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United States of America Patent
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Apr 11, 1995
Grant Date -
N/A
app pub date -
Nov 7, 1991
filing date -
Nov 7, 1991
priority date (Note) -
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Abstract
A physicochemically stable pharmaceutical matrix composition is provided comprising: a pharmaceutical active and a water insoluble aliphatic or fatty acid ester, preferably stearyl stearate; a taste mask carrier for pharmaceutical actives comprising a taste masking effective amount of an aliphatic or fatty acid ester; and a method for preparing a pharmaceutical matrix without the use of organic and/or volatile solvents comprising the steps of: melting an aliphatic or fatty acid ester; admixing at least one pharmaceutical active with the molten aliphatic or fatty acid ester; and solidifying the admixture to produce a pharmaceutical matrix composition. The matrix is composed of an aliphatic, or fatty acid, ester that has a low melting point (50.degree.-100.degree. C.) and the melt exhibits: low viscosity, recongeals rapidly when cooled, does not exhibit polymorphism, and has good mold release properties.
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