CORDELIA MOLLOY / SCIENCE PHOTO LIBRARY CORDELIA MOLLOY / SCIENCE PHOTO LIBRARY
Beta blocker pills for the treatment of heart disease. Beta blockers are used to treat hypertension (high blood pressure) and arrhythmia (irregular heartbeat). Beta blockers block the beta-adrenergic receptors of the sympathetic nervous system, which decreases the activity of the heart.
Model release not required. Property release not required.