There are provided according to the invention novel compounds of formula I
1
wherein R
1
, R
2
and R
3
are as described in the specification, processes for preparing them, formulations containing them and their use in therapy for the treatment of inflammatory diseases.
The present invention is directed to an electrospun pharmaceutical composition comprising a pharmaceutically acceptable actibe agent, and a pharmaceutically acceptable polymeric carrier for use in therapy.
Novel process for preparing and harvesting crystalline particles
申请人:——
公开号:US20040045805A1
公开(公告)日:2004-03-11
The present invention relates to a novel process for preparing and harvesting crystalline particles, particularly particles of therapeutically useful or carrier substances of a size suitable for inhalation therapy.
The present invention relates to a novel process for preparing crystalline particles of a salt of a substance, particularly particles of therapeutically useful or carrier substances of a size suitable for inhalation therapy.
A dry powder pharmaceutical composition comprising (i) a medicament particle fraction comprising medicament particles with an aerodynamic diameter no greater than 10 &mgr;m; and (ii) at least 50% of a non-respirable excipient fraction comprising low density excipient particles with an aerodynamic diameter greater than 10 &mgr;m and a geometric diameter greater than 30 &mgr;m. In additional embodiments of the invention, the pharmaceutical composition includes a respirable excipient fraction comprising excipient particles with an aerodynamic diameter no greater than 10 &mgr;m. In a preferred embodiment of the invention, the non-respirable excipient particles include pores adapted to receive a portion of the respirable excipient fraction and/or the medicament fraction.