 This study will evaluate the perception of the physicians and the patients about the approved adjustable dosing of Symbicort 1604,5. Symbicort maintenance dose will be adjusted up and down within the approved dose range of 1x2 - 4x2 inhalations per day, to the level of asthma symptoms. Patients and physicians perception of this new dosing schedule will be evaluated by means of questionnaires completion and direct questioning. 