title: State of the art in beta2-agonist therapy: a safety review of long-acting agents.
abstract: Despite concerns in the 1970s and 1980s about the safety of short-acting beta2-agonists, it is now generally accepted that these agents, used at appropriate doses, provide safe and effective treatment for asthma symptoms. After their introduction, beta2-agonists with a long duration of action--formoterol and salmeterol--became widely used as maintenance therapy with inhaled corticosteroids (ICS). Both beta2-agonists are well tolerated in long-term studies, with no reduction in lung function observed over time, indicating a lack of clinically relevant tolerance development in patients with asthma and COPD. High-dose studies have indicated that formoterol produces systemic effects of similar duration to, but less pronounced than, salbutamol and terbutaline. Formoterol produces long-lasting bronchoprotection against exercise-induced bronchoconstriction, even in patients receiving regular maintenance therapy; its fast onset of effect (similar to salbutamol) allows formoterol to be used as a reliever. Clinically the safety of formoterol and salmeterol has been demonstrated in several studies, both with ICS and alone.
authors: Department of Pulmonology, University Medical Centre, Leiden, The Netherlands.
authors: K F
authors: KF
authors: Rabe
mesh_terms: D000318:Adrenergic beta-Agonists / Q000009:adverse effects / Q000627:therapeutic use*; D000420:Albuterol / Q000009:adverse effects / Q000031:analogs & derivatives* / Q000627:therapeutic use; D001249:Asthma / Q000188:drug therapy*; D001993:Bronchodilator Agents / Q000009:adverse effects / Q000627:therapeutic use; D004359:Drug Therapy, Combination; D004361:Drug Tolerance; D004983:Ethanolamines / Q000009:adverse effects / Q000627:therapeutic use; D000068759:Formoterol Fumarate; D006801:Humans; D029424:Pulmonary Disease, Chronic Obstructive / Q000188:drug therapy*; D000068299:Salmeterol Xinafoate; D016896:Treatment Outcome
chemical_list: D000318:Adrenergic beta-Agonists; D001993:Bronchodilator Agents; D004983:Ethanolamines; D000068299:Salmeterol Xinafoate; D000420:Albuterol; D000068759:Formoterol Fumarate