Metoprolol is a commonly prescribed beta blocker used to treat high blood pressure, angina (chest pain), heart failure, irregular heart rhythms, and to reduce the risk of future heart attacks. Most people tolerate it well, but like all medications, it can cause side effects.
Here are 10 common side effects of metoprolol:
- Fatigue or tiredness
- One of the most common side effects.
- Often improves after a few weeks as your body adjusts.
- Dizziness or lightheadedness
- Can occur, especially when standing up quickly.
- Rise slowly from sitting or lying down to reduce the risk of falls.
- Slow heart rate (bradycardia)
- Metoprolol works by slowing the heart.
- If your pulse becomes very slow or you experience fainting, contact your healthcare provider promptly.
- Low blood pressure
- May cause weakness, dizziness, or fainting.
- Your clinician may adjust the dose if symptoms are troublesome.
- Cold hands and feet
- Reduced blood flow to the extremities can make them feel cold.
- Shortness of breath
- Although uncommon, metoprolol can sometimes worsen breathing problems, especially in people with asthma or certain other lung conditions.
- Sleep changes
- Some people experience insomnia, vivid dreams, or disturbed sleep.
- Digestive problems
- Nausea, diarrhea, constipation, or stomach discomfort may occur.
- Depression or mood changes
- Some people report low mood or decreased energy, though research on this association is mixed.
- Reduced exercise tolerance
- Because metoprolol limits how fast your heart can beat, strenuous exercise may feel more
