Metoprolol is best classified as which type of cardiovascular drug?

Metoprolol is a cardioselective (beta-1 selective) blocker that lowers heart rate and contractility, generally safer in patients with reactive airway disease than non-selective agents.Other options: Propranolol is non-selective; calcium channel blockers (e.g., amlodipine) and ACE inhibitors (e.g., lisinopril) are different classes.Key exam takeaway: Metoprolol = cardioselective (beta-1) blocker; propranolol = non-selective.