Metoprolol is a beta-blocker commonly prescribed for 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.
Like all medicines, it can cause side effects. Many are mild and improve as the body adjusts, but some should be discussed with a healthcare professional.
10 common or important side effects of metoprolol
- Tiredness or low energy
- Feeling more fatigued than usual is one of the most commonly reported effects.
- Dizziness or lightheadedness
- May occur, especially when standing up quickly, because blood pressure can drop.
- Slow heartbeat
- Metoprolol intentionally lowers heart rate, but an unusually slow pulse should be discussed with a clinician.
- Cold hands and feet
- Reduced circulation to the extremities can make hands or feet feel colder.
- Sleep changes
- Some people report trouble sleeping, vivid dreams, or changes in sleep patterns.
- Digestive symptoms
- Nausea, diarrhea, constipation, or stomach discomfort can occur.
- Shortness of breath or reduced exercise tolerance
- Some people notice they tire more easily during activity.
- Mood changes
- A small number of people report low mood or other emotional changes.
- Sexual side effects
- Some people experience changes in sexual function.
- Weight changes
- Changes in weight can occur, although the cause may involve appetite, activity level, or other factors.
Seek medical advice promptly if you experience:
- Fainting
- Severe dizziness
- Very slow heartbeat
- New or worsening shortness of breath
- Chest pain
- Swelling of the legs or sudden weight gain
Important reminders
- Do not stop metoprolol suddenly unless your healthcare professional tells you to. Stopping abruptly can worsen some heart conditions.
- Take it consistently and at the prescribed dose.
- Tell your clinician about all medicines and supplements you use, as some can affect heart rate or blood pressure.
If you share your metoprolol dose (for example 25 mg, 50 mg, or 100 mg), why you take it, and any symptoms you’ve noticed, I can help you understand whether they may be related.
