| abstract |
Particles, which comprise at least one therapeutically active substance and which can be obtained by the following steps: a. providing essentially dry inhalable particles comprising at least one therapeutically active substance, b. suspending the particles from step (a) in a carrier gas to obtain a first aerosol, c. add steam to the first spray to obtain a second spray that has a higher water content than the first spray, and d. adjust the temperature and / or pressure of the second aerosol to exceed the dew point of the second aerosol and cause condensation of water on the particles. |