10 Metoprolol Side Effects That Are Often Overlooked
Metoprolol is a medication called a beta-blocker. It is commonly prescribed for conditions such as high blood pressure, chest pain (angina), certain heart rhythm problems, and heart failure. Like all medicines, it can cause side effects, although many people take it without serious problems.
1. Fatigue and low energy
- Feeling unusually tired, sluggish, or less able to exercise can occur because metoprolol slows the heart rate and reduces the body’s response to stress hormones.
2. Dizziness or lightheadedness
- This may happen especially when standing up quickly, particularly when first starting treatment or after a dose increase.
3. Slow heartbeat (bradycardia)
- Metoprolol intentionally lowers heart rate, but in some people it may become too slow and cause:
- Weakness
- Dizziness
- Fainting
4. Cold hands and feet
- Reduced circulation to the extremities can make fingers and toes feel colder than usual.
5. Sleep changes or unusual dreams
- Some people report:
- Trouble sleeping
- Vivid dreams
- Nightmares
6. Mood changes
- Less commonly, people may experience:
- Low mood
- Reduced motivation
- Changes in emotional well-being
7. Sexual side effects
- Some people may notice changes in sexual function or reduced libido.
8. Shortness of breath or exercise intolerance
- Because beta-blockers affect heart rate response during activity, some people may feel they cannot increase their exercise intensity as easily.
9. Digestive symptoms
Possible effects include:
- Nausea
- Diarrhea or constipation
- Stomach discomfort
10. Masking signs of low blood sugar
- In people with diabetes, metoprolol may reduce warning signs of hypoglycemia, such as a fast heartbeat. Other symptoms of low blood sugar may still occur
