10 Common Side Effects of Metoprolol: A Helpful Guide for People Taking This Medication
Metoprolol is a beta-blocker used to treat conditions such as high blood pressure, chest pain (angina), certain heart rhythm problems, and heart failure. It works by slowing the heart rate and reducing the heart’s workload.
Many people take metoprolol safely, but some experience side effects—especially when starting treatment or after a dose change.
1. Tiredness or low energy
- Feeling more fatigued than usual is one of the most commonly reported effects.
- This may improve as your body adjusts to the medication.
2. Dizziness or lightheadedness
- Lower blood pressure or a slower heartbeat can cause dizziness, especially when standing up quickly.
3. Slow heartbeat
- Metoprolol is designed to reduce heart rate, but in some people it can become too slow and cause:
- Weakness
- Faintness
- Unusual fatigue
4. Cold hands and feet
- Reduced circulation to the extremities may make fingers and toes feel colder.
5. Sleep changes or vivid dreams
- Some people report:
- Trouble sleeping
- Nightmares
- More vivid dreams
6. Digestive problems
Possible symptoms include:
- Nausea
- Diarrhea
- Constipation
- Stomach discomfort
7. Mood changes
- Some people notice changes in mood, such as feeling less motivated or experiencing low mood.
8. Shortness of breath or reduced exercise tolerance
- A slower heart rate may make exercise feel more difficult.
- New or worsening breathing problems should be checked by a healthcare professional.
9. Sexual side effects
- Some people may experience reduced sexual desire or erectile difficulties.
10. Weight changes
- Some people notice mild weight gain or changes in weight while taking beta-blockers, though this does not happen to everyone
