Which bronchodilator is commonly used in the treatment of asthma?

Salbutamol is a commonly used bronchodilator in the treatment of asthma because it belongs to a class of medications known as short-acting beta-2 agonists (SABAs). These drugs work quickly to relax the muscles around the airways, which helps to open them up and makes it easier for individuals with asthma to breathe, especially during an asthma attack or exacerbation. Its fast action makes it particularly effective for acute relief of symptoms.

The other medications listed are used in asthma management but serve different roles. Beclomethasone and fluticasone are corticosteroids, which are anti-inflammatory agents that help reduce swelling and mucus production in the airways but do not act as bronchodilators. Montelukast is a leukotriene receptor antagonist that helps to prevent asthma symptoms by reducing inflammation and bronchoconstriction, but it is not classified as a bronchodilator like salbutamol. Thus, while all these medications can play a role in managing asthma, salbutamol is particularly recognized for its immediate bronchodilator effect.