Metoprolol is a medication in the beta-blocker class. It is commonly prescribed for conditions such as high blood pressure, angina (chest pain), certain heart rhythm problems, heart failure, and after a heart attack. Like all medicines, it can cause side effects, although many people take it without major problems.
10 common side effects of metoprolol
1. Tiredness or fatigue
- Feeling more tired than usual is one of the most commonly reported effects.
- It may improve as your body adjusts to the medication.
2. Dizziness or lightheadedness
- Can occur, especially when standing up quickly.
- Checking blood pressure and moving slowly from sitting to standing may help.
3. Slow heartbeat (bradycardia)
- Metoprolol intentionally lowers heart rate.
- A very slow pulse, fainting, or unusual weakness should be discussed with a healthcare professional.
4. Cold hands and feet
- Reduced circulation to the extremities can make fingers and toes feel colder.
5. Sleep changes
Some people report:
- Trouble sleeping
- Vivid dreams
- Nighttime restlessness
6. Shortness of breath or reduced exercise tolerance
- Some people notice they tire more easily during activity.
- New or worsening breathing problems should be evaluated.
7. Digestive symptoms
Possible effects include:
- Nausea
- Diarrhea
- Constipation
- Stomach discomfort
8. Low blood pressure
Signs may include:
- Dizziness
- Weakness
- Feeling faint
9. Mood changes
Some people report:
- Low mood
- Reduced energy
- Changes in concentration
10. Sexual side effects
Some people may experience changes in sexual function or interest.
Important: Do not stop metoprolol suddenly
Stopping a beta-blocker abruptly can cause serious problems, including a rapid increase in heart rate, worsening chest pain, or increased risk of heart complications. Any dose change should be discussed with the prescribing clinician.
