This is called off-label use. Metoprolol and other beta-blockers work by slowing heart rate and relaxing blood vessels. This ...

Metoprolol does not interact with grapefruit ... This means it can increase the risk of side effects, including low blood ...

There is evidence to indicate that full adrenergic blockade by carvedilol improves survival and cardiovascular outcome in patients with heart failure compared with metoprolol treatment ...