The purposes of this study is to compare the test products Salmeterol/fluticasone Easyhaler with marketed product Seretide Diskus in terms of the drug absorbed into the blood stream

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, haematological, GI, pulmonary, metabolic-endocrine, neurological or psychiatric disease within the previous 2 years
• Any condition requiring regular 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