Which inhaled corticosteroid can be used for asthma treatment?

Flixotide, or fluticasone propionate, is an inhaled corticosteroid specifically indicated for the management of asthma. Inhaled corticosteroids are the first-line treatment for persistent asthma because they effectively reduce inflammation in the airways, leading to improved lung function and decreased frequency of asthma exacerbations. Flixotide works by acting on the glucocorticoid receptors in the airway, decreasing inflammation and hyperresponsiveness, which is a hallmark of asthma.

While Seretide and Symbicort contain corticosteroids as well, they are combination therapies. Seretide combines a corticosteroid with a long-acting beta-agonist, and Symbicort includes a corticosteroid with a fast-acting beta-agonist. While they are also used for asthma management, the question specifically asks for an inhaled corticosteroid alone for asthma treatment, making Flixotide the most appropriate answer. Azithromycin, in contrast, is an antibiotic and not classified as a corticosteroid, thus not suitable for asthma treatment.