The 10 Metoprolol Side Effects You Should Know About
Metoprolol is a medication in the beta-blocker family. It is commonly prescribed for conditions such as high blood pressure, chest pain (angina), certain heart rhythm problems, heart failure (in specific cases), and after a heart attack. Like all medicines, it can cause side effects, although many people take it without serious problems.
1. Tiredness and Fatigue
Feeling unusually tired is one of the more common side effects, especially when starting treatment or changing the dose. This may improve as your body adjusts.
2. Dizziness or Lightheadedness
Because metoprolol lowers heart rate and blood pressure, some people may feel:
- Dizzy when standing up
- Lightheaded
- Less steady on their feet
3. Slow Heart Rate
Metoprolol works partly by slowing the heart. A heart rate that becomes too slow may cause:
- Weakness
- Dizziness
- Fainting
- Unusual fatigue
4. Cold Hands and Feet
Some people notice colder fingers and toes because beta-blockers can affect blood flow to the extremities.
5. Sleep Changes
Possible sleep-related effects include:
- Vivid dreams
- Difficulty sleeping
- Changes in sleep patterns
6. Digestive Problems
Some people experience:
- Nausea
- Diarrhea
- Constipation
- Stomach discomfort
7. Shortness of Breath or Breathing Changes
Metoprolol is generally heart-selective, but in some people—especially those with certain lung conditions—it may contribute to breathing difficulties.
8. Mood Changes
Some people report:
- Low mood
- Reduced energy
- Changes in emotional well-being
Not everyone experiences these effects, and other health factors can also play a role.
9. Sexual Side Effects
Some people taking beta-blockers report:
- Lower sexual desire
- Difficulty with sexual function
These symptoms can have many possible causes and should be discussed with a healthcare professional.
10. Changes in Blood Sugar Warning Signs
For people with diabetes, metoprolol may make some symptoms of low blood sugar—especially a fast heartbeat—less noticeable
