What is a common side effect of beta-blockers?

Bradycardia is a well-known side effect of beta-blockers, which are primarily used to manage hypertension and various cardiac conditions. These medications work by blocking beta-adrenergic receptors, leading to a decrease in heart rate and contractility. Consequently, the effect of reduced sympathetic nervous system activity can result in bradycardia, which is a slower than normal heart rate, typically defined as fewer than 60 beats per minute.

This effect can be particularly beneficial in conditions where a lower heart rate is desirable, such as in certain types of tachycardia or in patients with angina. However, it can also lead to undesired symptoms in some individuals, such as dizziness or fatigue, if the heart rate drops too low. Understanding the side effects of beta-blockers, like bradycardia, is essential for effective patient management and monitoring during treatment.