A patient is having an asthmatic attack.

Albuterol, a common beta-2 adrenergic agonist used in inhalers, stimulates bronchial smooth muscle relaxation. However, stimulation of beta receptors can also produce systemic effects such as:

Tachycardia (due to beta-1 cross-reactivity)

Nervousness (from central stimulation)

Coughing (a local airway response)

Confusion and drowsiness are not typical side effects of beta-agonists. Hypotension is rare unless severe overdose occurs.