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Benzodiazepine formulation in a polyorthoester carrier

  • US 8,940,315 B2
  • Filed: 04/17/2009
  • Issued: 01/27/2015
  • Est. Priority Date: 04/18/2008
  • Status: Active Grant
First Claim
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1. An implantable drug depot useful for reducing or treating pain in a patient in need of such treatment, the drug depot comprising a polyorthoester in an amount of about 95 to 99 wt % based on the total weight of the drug depot, and mPEG, the drug depot comprising a gel and having a viscosity of about 500 to 10,000 centipoises and a benzodiazepine in an amount of about 1 to 5 wt. % based on the total weight of the drug depot and having a particle size of between about 5 μ

  • m to 50 μ

    m the drug depot adapted to be administered intraspinally in the patient to reduce or treat pain, wherein the drug depot is capable of releasing benzodiazepine for a period of at least 30 days after administration.

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