Inhalation particles incorporating, in an individual particle, a combination of a βhd 2-agonist and a glucocorticosteroid in a predetermined and constant ratio, a process for the preparation thereof and pharmaceutical compositions comprising the inhalation particles. The particles have a narrow particle...http://www.google.de/patents/US7172752?utm_source=gb-gplus-sharePatent US7172752 - Combination particles for the treatment of asthma
