The 10 Metoprolol Side Effects You Should Know About
Metoprolol is a beta-blocker commonly prescribed to treat high blood pressure, angina (chest pain), certain heart rhythm problems, heart failure (specific forms), and to reduce the risk of future heart problems after a heart attack. Many people take it without major issues, but side effects can occur.
Common Side Effects
1. Tiredness or Fatigue
Feeling more tired than usual is one of the most common side effects, especially when starting the medication or after a dose increase.
2. Dizziness or Lightheadedness
Metoprolol can lower blood pressure, which may cause dizziness, particularly when standing up quickly.
3. Slow Heart Rate (Bradycardia)
Because it slows the heart, some people develop a heart rate that is lower than expected. This may cause fatigue, dizziness, or fainting in some cases.
4. Cold Hands and Feet
Reduced blood flow to the extremities can make your hands or feet feel cold.
5. Digestive Symptoms
Some people experience:
- Nausea
- Diarrhea
- Constipation
- Stomach discomfort
6. Sleep Changes
Vivid dreams, insomnia, or disturbed sleep may occur in some people, although not everyone experiences these effects.
7. Shortness of Breath
Metoprolol is generally more selective for the heart than some older beta-blockers, but it can still occasionally worsen breathing symptoms in susceptible people, particularly those with asthma or certain other lung conditions.
8. Sexual Side Effects
Some people report decreased libido or difficulty with erections, although many factors can contribute to these symptoms.
9. Mood Changes
Less commonly, people may notice:
- Low mood
- Depression
- Reduced energy
The relationship between beta-blockers and depression is not fully established, and many people do not experience mood changes.
10. Masking Low Blood Sugar Symptoms
In people with diabetes, metoprolol can make it harder to notice some warning signs of low blood sugar—such as a rapid heartbeat—although sweating may still occur
