<unk>  is a beta-2 adrenergic agonist that is FDA approved for the prophylaxis of exercise-induced bronchospasm and bronchospasm in patients with reversible obstructive airway disease. There is a Black Box Warning for this drug as shown here.  Common adverse reactions include tachyarrhythmia, hypokalemia, nausea, pharyngitis, throat irritation, feeling nervous, headache, tremor, cough, rhinitis, upper respiratory infection, and viral lower respiratory infection.
Albuterol
Tulobuterol
Xamoterol
Pirbuterol
Levalbuterol
Bambuterol
Levosalbutamol
Ipratropium 