Moprolol is a beta-adrenergic antagonist, or beta blocker, typically prescribed to treat hypertension, high blood pressure, angina pectoris, arrhythmias, anxiety, and glaucoma. Moprolol has been the subject for many clinical trials to study the effect moprolol has on both blood pressure and glaucoma. In clinical trials, Moprolol shows some effect on lowering blood pressure with no effects on the heart rate. Moprolol is currently off the market, most likely due to the manufacturer being in violation of US good manufacturing practices.