Lung deposition of budesonide from the novel dry powder inhaler AirmaxTM

The deposition of budesonide at fast (60 l min(-1)) and slow (301 min(-1)) inspiratory flow rates from Airmax, a new multi-dose dry powder inhaler, was compared with that from Turbuhaler and a standard pressurized metered dose inhaler (pMDI). Twelve patients with mild to moderate asthma took part in a five-way randomized crossover study, and inhaled a single nominal dose of 200 microg budesonide, labelled with 99mTc, on each study day....