10 Side Effects of Metoprolol You Should Know

Metoprolol is a beta-blocker commonly prescribed for high blood pressure, angina, certain abnormal heart rhythms, and heart failure. Many people have no side effects or only mild ones. (MedlinePlus)

Possible side effects

1. Tiredness or weakness
2. Dizziness or lightheadedness
3. Slow heartbeat
4. Headache
5. Cold hands or feet
6. Nausea
7. Diarrhea or stomach discomfort
8. Sleep problems or unusual dreams
9. Shortness of breath, particularly in people susceptible to breathing problems
10. Sexual difficulties in some people. (nhs.uk)

Most mild effects improve as the body adjusts to the medication. (nhs.uk)

⚠️ When to seek medical attention

Contact a healthcare professional promptly if you develop fainting, significant swelling of the legs, worsening shortness of breath, an unusually slow or irregular heartbeat, or unexplained bruising. (nhs.uk)

Severe breathing difficulty, chest pain that is new or doesn’t go away, or signs of a serious allergic reaction require urgent emergency care. (nhs.uk)

🚫 Don’t stop metoprolol suddenly

This is particularly important. Suddenly stopping metoprolol can cause serious heart problems or make the underlying condition worse. If side effects are bothering you, speak with your doctor about adjusting the dose or changing treatment. (MedlinePlus)

Bottom line: Metoprolol can cause fatigue, dizziness and a slower heart rate, but it provides important cardiovascular benefits for many patients. Don’t discontinue it based on an online list of side effects.