A dry powder suitable for inhalation in a dry powder inhaler, the powder comprising a carrier, an active agent and at least 0.5% by weight of magnesium stearate, the powder being further characterized in that the less than 10% of the surface of the carrier material is covered with particles of magnesium stearate . The invention is also directed to a method of making dry powders by blending together the ingredients mentioned in a diffusion blender for a period time that is less than 60 minutes.
