Metoprolol is a beta-blocker commonly prescribed for conditions such as high blood pressure, angina (chest pain), certain heart rhythm problems, heart failure, and after some heart attacks. It works by slowing the heart rate and reducing the workload on the heart.
Like any medication, it can cause side effects. Many are mild and improve as the body adjusts, but some need medical attention.
10 possible side effects of metoprolol
- Tiredness or low energy
- A common effect, especially when starting treatment or changing doses.
- Dizziness or lightheadedness
- Can occur, particularly when standing up quickly.
- Slow heartbeat
- Metoprolol intentionally lowers heart rate, but an unusually slow pulse can be a concern.
- Low blood pressure
- May cause weakness, faintness, or dizziness.
- Cold hands and feet
- Reduced circulation to the extremities can occur.
- Sleep changes or vivid dreams
- Some people notice changes in sleep patterns.
- Digestive symptoms
- Nausea, diarrhea, or stomach discomfort may occur.
- Shortness of breath or wheezing
- More important to report, especially in people with asthma or lung disease.
- Mood changes
- Some people report depression or mood changes; discuss persistent symptoms with a clinician.
- Sexual side effects
- Some people experience reduced sexual function or changes in libido.
Seek medical advice promptly if you experience:
- Fainting or severe dizziness
- Very slow heartbeat or unusual irregular heartbeat
- New or worsening shortness of breath
- Swelling of the legs or sudden weight gain
- Chest pain that is new or worsening
- Signs of an allergic reaction (such as facial swelling or trouble breathing)
Important:
- Do not stop metoprolol suddenly unless instructed by your healthcare professional. Stopping abruptly can worsen certain heart conditions.
- Tell your clinician about all medicines and supplements you take, because some combinations can affect heart rate or blood pressure.
If you take metoprolol, tell me your dose (for example 25 mg, 50 mg, 100 mg), why it was prescribed, and any symptoms you’re having, and I can help you understand what is common versus what needs attention.
