A COMBINATION OF COMPOUNDS, WHICH CAN BE USED IN THE TREATMENT OF RESPIRATORY DISEASES, ESPECIALLY CHRONIC OBSTRUCTIVE PULMONARY DISEASE(COPD) AND ASTHMA

摘要

The present invention provides pharmaceutical compositions comprising a .beta.2-agonist, and a compound of formula: wherein m, R1, R2, R3, and R4 ar e as defined in the specification, and their use in therapy.