Fenoterol

Fenoterol is a bronchodilator from the beta-2 adrenergic agonist class, used for the treatment of acute bronchoconstriction in asthma, COPD, and bronchitis.​‍​​​​​‍​‍‍‍‍​‍‍ Some formulations are also approved for long-term maintenance therapy. Its effects are based on selective agonism at beta-2 receptors in the airways. Onset of action is rapid, and the effect lasts between 3–5 hours. The most common adverse effects include cough and tremor. In some countries, fenoterol is also approved as a tocolytic agent. Fenoterol (ATC R03AC04) has bronchodilatory, sympathomimetic, and tocolytic properties. Its effects are based on selective binding to beta-2 receptors. Onset of action is rapid, within a few minutes, and the effect lasts between 3–5 hours. Mechanism of action of beta-2 adrenergic agonists, click to enlarge. Illustration © PharmaWiki