SOLID DISPERSIONS OF AMORPHOUS PAROXETINE MESYLATE

摘要

The invention relates to solid dispersions containing paroxetine mesylate. One solid dispersion contains amorphous paroxetine mesylate and a methacrylic acid-methyl methacrylate copolymer, where the weight ratio of paroxetine mesylate to polymer ranges from about 30:70 to about 90:10. Another solid dispersion contains amorphous paroxetine mesylate and a-vinylpyrrolidone/vinylacetate copolymer (PVP-VA), where the weight ratio of paroxetine mesylate to copolymer ranges from about 30:70 to about 50:50. An amorphous solid dispersion of the invention may have a single glass transition temperature. An amorphous solid dispersion is stable for at least 48 hours at 60° C. and 75% relative humidity. A further embodiment of the invention relates to pharmaceutical compositions of paroxetine mesylate comprising a solid dispersion of the invention and at least one pharmaceutically acceptable excipient. Methods for the treatment using paroxetine mesylate in the form of a solid dispersion according to the invention are also disclosed.

主权项

1. A solid dispersion of amorphous paroxetine mesylate in a methacrylic acid-methyl methacrylate copolymer, wherein the weight ratio of paroxetine mesylate to polymer ranges from about 30:70 to about 90:10.