Metoprolol is a medication commonly used to treat high blood pressure, angina (chest pain), and heart failure. It belongs to a class of drugs known as beta-blockers, which work by blocking the effects of certain natural substances in the body, like epinephrine, on the heart and blood vessels. This results in a reduction of heart rate, blood pressure, and strain on the heart.

Metoprolol is usually prescribed in one of two forms: metoprolol tartrate, which is taken multiple times a day, and metoprolol succinate, which is an extended-release form taken once daily. Like all medications, it can have side effects, such as dizziness, tiredness, depression, and gastrointestinal issues. It's important for anyone taking metoprolol to follow their healthcare provider's instructions and discuss any concerns or side effects they experience.