Preparation of risperidone

CAFC
  • US 7,256,195 B2
  • Filed: 09/23/2003
  • Issued: 08/14/2007
  • Est. Priority Date: 08/14/2000
  • Status: Expired due to Fees
First Claim
Patent Images

1. A solid or solid-containing pharmaceutical formulation comprising a crystalline form of risperidone with a pharmaceutically acceptable carrier and/or a pharmaceutically acceptable excipient, wherein the crystalline form of risperidone is characterized by x-ray powder diffraction peaks at 14.0±

  • 0.2 and 21.7±

    0.2 degrees two-theta.

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