Which of the following is a common side effect of albuterol?

• A. Dizziness
• B. Insomnia
• C. Palpitations
• D. Nausea

Answer: (C)

Albuterol can cause the heart to beat faster because, even though it mainly targets beta-2 receptors in the lungs, some of the medication enters the bloodstream and stimulates the heart’s beta receptors. That sympathetic-like stimulation often presents as palpitations or a racing sensation. This side effect is a well-known, fairly common response to inhaled beta-agonists, especially with higher or more frequent dosing or when technique is suboptimal.

Dizziness, insomnia, or nausea can occur, but they’re not as typical for albuterol as palpitations. If palpitations are bothersome or accompanied by chest pain, fainting, or very rapid heart rate, it’s important to review inhaler technique and dosing with a clinician and report any concerning symptoms.