Which of the following is a common side effect of beta-blockers?

The correct answer is fatigue, which is a well-known and common side effect of beta-blockers. Beta-blockers work by blocking the effects of adrenaline (epinephrine) on the body’s beta receptors, which can lead to a decrease in heart rate and blood pressure. This reduction in sympathetic nervous system activity can result in a feeling of tiredness or fatigue as the body adjusts to the medication. Patients taking beta-blockers may experience this sensation, especially when they start the medication or if their dosage is increased.

In contrast, the other options do not typically align with the known side effects of beta-blockers. Increased appetite and weight loss are not commonly associated with these medications, as beta-blockers often have more of a neutral effect on appetite. Nosebleeds are also not a typical side effect linked to beta-blockers and are more commonly associated with other medications or underlying health conditions. Understanding the expected side effects of medications like beta-blockers is crucial for monitoring patient responses and ensuring appropriate management of any adverse effects.