What are common side effects of beta-adrenergic agonists?

Beta-adrenergic agonists are commonly used in the treatment of conditions such as asthma and chronic obstructive pulmonary disease (COPD) because they stimulate beta-adrenergic receptors in the lungs, leading to bronchodilation. While these medications are effective for alleviating respiratory symptoms, they often produce side effects related to their mechanism of action on the sympathetic nervous system.

Tremors are a well-known side effect, often resulting from stimulation of beta-2 receptors in skeletal muscles. Palpitations can occur due to increased heart rate and cardiac contractility, which arises from the stimulation of beta-1 receptors in the heart. Additionally, headaches may result from vasodilation or changes in blood flow.

The presence of tremors, palpitations, and headache highlights the typical stimulation of adrenergic pathways when using beta-adrenergic agonists, making this option reflective of the common side effects associated with these medications. Other options listed involve symptoms that are less characteristic of beta-adrenergic agonist therapies. For instance, gastrointestinal disturbances like nausea and diarrhea are more related to other classes of medications. Similarly, dry mouth and metallic taste pertain more to anticholinergic drugs, and hypotension and dizziness are not typical reactions