Pharmacokinetic study comparing Salmeterol/fluticasone Easyhaler products and Seretide Diskus 50/500 µg/inhalation; a randomised, open, single centre, single dose, crossover study in healthy subjects

Inclusion Criteria:

• written informed consent obtained
• good general health ascertained by detailed medical history, and laboratory and physical examinations

Exclusion Criteria:

• evidence of a clinically significant cardiovascular, renal, hepatic, hematological, GI, pulmonary, metabolic-endocrine, neurological or psychiatric disease within the previous 2 years
• any condition requiring concomitant treatment (including vitamins and herbal products)or likely to need any concomitant treatment during the study. as an exception paracetamol and ibuprofen for occasional pain are allowed
• known hypersensitivity to the active substance(s) or the excipient (lactose, which contains small amounts of milk protein) of the drug
• pregnant or lactating females