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Ultra low density pulmonary powders

  • US 9,539,211 B2
  • Filed: 05/08/2015
  • Issued: 01/10/2017
  • Est. Priority Date: 11/09/2012
  • Status: Active Grant
First Claim
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1. A pharmaceutical composition for pulmonary delivery comprising particles of levodopa having:

  • a geometric size of about 8 μ

    m to about 12 μ

    m;

    a tap density of about 0.025 g/cm3 to about 0.050 g/cm3;

    a water content between 1.90 and 2.90 weight percent.

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