Metoprolol: The Good, The Bad, and The Common Side Effects You Should Know
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.
Many people take metoprolol safely, but like all medicines, it can cause side effects.
The Good: Why metoprolol is prescribed
- Helps lower blood pressure
- Reduces strain on the heart
- Can help control fast or irregular heart rhythms
- May reduce the risk of complications after certain heart conditions
- Can improve symptoms in some people with heart failure
The Bad: 10 common side effects
1. Tiredness or low energy
- Feeling unusually fatigued is one of the most common complaints, especially when first starting treatment.
2. Slow heartbeat
- Because metoprolol reduces heart rate, some people may notice a slower pulse.
3. Dizziness or lightheadedness
- This may occur, especially when standing up quickly, because blood pressure can drop.
4. Cold hands and feet
- Reduced circulation to the extremities may make hands and feet feel colder.
5. Sleep changes
- Some people report trouble sleeping, vivid dreams, or changes in sleep patterns.
6. Shortness of breath or reduced exercise tolerance
- Some people feel they cannot exercise as intensely as before, particularly when adjusting to the medication.
7. Digestive symptoms
Possible effects include:
- Nausea
- Diarrhea
- Constipation
- Stomach discomfort
8. Mood changes
- Some people report feeling more down, less motivated, or experiencing mood changes, though this is not common for everyone.
9. Sexual side effects
- Some people experience changes in libido or erectile function.
10. Weight changes
- Small weight changes can occur in some people, although many factors influence weight.
The “Ugly”: When to call a healthcare professional
Seek medical advice if you experience:
- Very slow heartbeat, fainting, or severe dizziness
- New or worsening shortness of breath
- Swelling in the legs or sudden weight gain (possible fluid buildup)
- Severe allergic reactions
- Symptoms of very low blood sugar (especially in people with diabetes
