Which medication is classified as a non-selective beta-blocker?

Propranolol is the medication classified as a non-selective beta-blocker. Non-selective beta-blockers are capable of blocking both beta-1 and beta-2 adrenergic receptors throughout the body. This dual action can impact various physiological functions, influencing heart rate, blood pressure, and bronchial dilation.

Propranolol is commonly used in clinical settings for conditions such as hypertension, anxiety, and migraine prophylaxis. Its non-selective nature means that it can also affect respiratory function, which is particularly important to consider when prescribing it to patients with underlying respiratory conditions, including asthma.

In contrast, atenolol and metoprolol are selective beta-1 blockers, primarily affecting the heart, and thus have less impact on the bronchial tissues. Bisoprolol also has a more selective action towards beta-1 receptors. Understanding the distinction between selective and non-selective beta-blockers is crucial for safe and effective medication management, particularly in patients with respiratory issues.