Spray dry amorphous powder with low residual moisture and excellent storage stability

摘要

The present invention relates to spray-dried amorphous powders which contain a pharmaceutical active substance and a matrix-forming agent, preferably a polymer, sugar or sugar alcohol in an amount of =20-60% (w/w). The powders have a moisture content which is less than 1.2% (w/w), preferably less than 1% (w/w). The present invention also relates to special methods of preparing such powders and methods of administering them by inhalation.