Atenolol and metoprolol are examples of which kind of beta blocker?

Atenolol and metoprolol are considered selective beta blockers, specifically they are selective for the beta-1 adrenergic receptors. Selective beta blockers primarily target the heart, which helps in reducing heart rate and myocardial contractility, making them useful in managing conditions such as hypertension and angina. By being selective for the beta-1 receptors, these medications minimize the risk of bronchoconstriction and other side effects associated with non-selective beta blockers, which affect both beta-1 and beta-2 receptors.

This selectivity is crucial in clinical practice, especially for patients who may have respiratory issues, as non-selective beta blockers, which affect both types of beta receptors, could exacerbate conditions like asthma or COPD.