Dry-powder medicament

Dry-powder medicament

  • CN 101,754,746 B
  • Filed: 07/18/2008
  • Issued: 08/19/2015
  • Est. Priority Date: 07/19/2007
  • Status: Active Grant
First Claim
Patent Images

1. preparation can suck the method for dry-powder medicament, comprises step:

  • I () is based on aerodynamic size, use medicinal ram of new generation by particulate activated composition classification, (ii) fraction reclaimed mixes with coarse grain lactose carrier, to provide the dry-powder medicament that can suck by the particulate activated composition and (iii) that reclaim at least one fraction;

    The method is further comprising the steps;

    based on aerodynamic size, by one or more more particle components classifications, reclaim at least one fraction one or more more particle components and by the one or more fraction reclaimed with can suck dry-powder medicament and mix, wherein said particle components is selected from particulate activated composition and particulate lactose;

    Wherein said particulate activated composition is SX and/or fluticasone propionate;

    WithThe fraction of wherein said recovery retains the stage or several stage that retain with the lower limit of 4.0-6.0 μ

    m from the upper limit with 7.0-9.0 μ

    m, retaining is measure under the flow velocity of 60 ±

    5L/min.

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