Long-acting beta-agonists are a kind of medicine called bronchodilators. Bronchodilators work to open constricted airways. Serevent and Foradil are used to control moderate to severe asthma and to prevent nighttime problems. Salmeterol is one of the most commonly prescribed medications in the world. However, in recent years, numerous studies are providing evidence that regular use of beta-agonists are associated with tolerance to the drug's effects and less ability in disease control. Studies also have revealed that the risk of life threatening and fatal asthma attacks increases with use of these medications.

Beta-Agonists may cause thousands of asthma-related deaths each year