A common adverse effect of beta blockers is which of the following?

A common adverse effect of beta blockers is which of the following?

• A. Dizziness
• B. Weight gain
• C. Insomnia
• D. Nausea

Answer: (A)

Dizziness is a common adverse effect of beta blockers because these drugs lower overall blood pressure by reducing heart rate and the force of heart contraction. This systemic BP decrease can lead to reduced blood flow to the brain, especially when standing up, causing lightheadedness or dizziness. You’ll often see this early in therapy or after dose increases, which is why dose titration and advising patients to stand up slowly are important. While some beta blockers can cause insomnia, nausea, or even weight changes in certain individuals, these effects are less consistently seen across the whole class. The dizziness you’re testing for reflects the primary hemodynamic action of beta blockers.

Dizziness is a common adverse effect of beta blockers because these drugs lower overall blood pressure by reducing heart rate and the force of heart contraction. This systemic BP decrease can lead to reduced blood flow to the brain, especially when standing up, causing lightheadedness or dizziness. You’ll often see this early in therapy or after dose increases, which is why dose titration and advising patients to stand up slowly are important.

While some beta blockers can cause insomnia, nausea, or even weight changes in certain individuals, these effects are less consistently seen across the whole class. The dizziness you’re testing for reflects the primary hemodynamic action of beta blockers.