Beta-2 Adrenergic Agonists
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Overview
Beta-2 adrenergic agonists are bronchodilators that relax airway smooth muscle, making it easier to breathe. They are a cornerstone of asthma and COPD treatment.
How do beta-2 adrenergic agonists work?
These drugs activate beta-2 adrenergic receptors on airway smooth muscle cells, triggering a cascade that increases cyclic AMP levels and causes muscle relaxation, opening up the airways.
Drugs in this class
- Albuterol (ProAir, Ventolin, Proventil)
- Levalbuterol (Xopenex)