Sustained-release formulations utilizing pharmaceutical excipient having improved compressibility
First Claim
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1. A sustained-release formulation comprising:
- an active agent;
an augmented microcrystalline cellulose comprising agglomerated particles of microcrystalline cellulose and a compressibility augmenting agent which(i) physically restricts the proximity of the interface between adjacent cellulose surfaces, (ii) inhibits interactions between adjacent cellulose surfaces;
or (iii) accomplishes both (i) and (ii) above; and
a matrix comprising a sustained-release carrier to promote sustained-release of said active agent.
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Abstract
Sustained release formulations include an augmented microcrystalline cellulose, an active agent, and a sustained release carrier and methods for making same are disclosed.
298 Citations
30 Claims
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1. A sustained-release formulation comprising:
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an active agent; an augmented microcrystalline cellulose comprising agglomerated particles of microcrystalline cellulose and a compressibility augmenting agent which (i) physically restricts the proximity of the interface between adjacent cellulose surfaces, (ii) inhibits interactions between adjacent cellulose surfaces;
or (iii) accomplishes both (i) and (ii) above; and
a matrix comprising a sustained-release carrier to promote sustained-release of said active agent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification