Budesonide/formoterol – Symbicort (Astra Zeneca), a combination of budesonide, an inhaled corticosteroid providing an anti-inflammatory effect, and formoterol, a unique rapid and long-acting bronchodilator, which is delivered in one inhaler. The new treatment approach for asthma budesonide/formoterol maintenance and reliever therapy (SMART) is more effective than fixed doses of budesonide/formoterol or fluticasone/salmeterol. With adjustable maintenance dosing where patients step up or down their medication. Symbicort improves asthma control and quality of life, and reduces the number of a exacerbations at a smaller total dose of inhaled glucocorticosteroids in comparison with fixed dosing.