Metoprolol: 10 Common Side Effects to KnowMetoprolol is a beta-blocker commonly prescribed for conditions such as high blood pressure, chest pain (angina), certain heart rhythm problems, and heart failure. Like all medicines, it can cause side effects, although many people take it without serious problems.
1. Tiredness or low energy
- Feeling more fatigued than usual is one of the more common effects.
- This may improve as your body adjusts.
2. Dizziness or lightheadedness
- Can occur, especially when standing up quickly, because metoprolol can lower heart rate and blood pressure.
3. Slow heartbeat
- Metoprolol is designed to slow the heart rate, but a heart rate that becomes unusually low may need medical attention.
4. Cold hands and feet
- Reduced circulation to the extremities can make hands and feet feel colder.
5. Sleep changes
- Some people report unusual dreams, difficulty sleeping, or changes in sleep patterns.
6. Digestive symptoms
Possible effects include:
- Nausea
- Diarrhea
- Constipation
- Stomach discomfort
7. Shortness of breath or reduced exercise tolerance
- Some people notice they tire more easily during activity.
- New or worsening breathing problems should be discussed with a healthcare professional.
8. Mood changes
- Some people report low mood or changes in how they feel emotionally.
9. Sexual side effects
- Beta-blockers may contribute to sexual difficulties in some people.
10. Weight changes
- Some people notice changes in weight or appetite, though this varies.
Seek medical advice promptly if you experience:
- Fainting or severe dizziness
- Very slow heartbeat
- New or worsening chest pain
- Severe shortness of breath, wheezing, or swelling
- Signs of an allergic reaction
Important:
Do not stop metoprolol suddenly unless instructed by your healthcare professional. Abruptly stopping beta-blockers can cause serious heart-related problems in some people.
If you are taking metoprolol, the dose, reason it was prescribed, and other medications you use can affect which side effects are most relevant.
