Metoprolol is a widely prescribed beta-blocker used for conditions like high blood pressure, angina (chest pain), heart rhythm problems, and after heart attacks. Like all medications, it can cause side effects—but many people tolerate it well, especially when the dose is adjusted properly.
Here’s a helpful, realistic guide to the 10 most common side effects of Metoprolol:
1. Fatigue or tiredness
One of the most common effects. Because metoprolol slows the heart rate and reduces blood pressure, some people feel less energetic, especially at the beginning.
2. Dizziness or lightheadedness
This can happen when standing up quickly due to lowered blood pressure (orthostatic hypotension).
3. Slow heart rate (bradycardia)
Metoprolol is designed to slow the heart, but sometimes it can slow it more than desired, leading to fatigue or weakness.
4. Cold hands and feet
Reduced circulation in extremities is common with beta-blockers.
5. Shortness of breath (in some people)
Usually mild, but important—especially in people with asthma or other lung conditions, as beta-blockers can sometimes tighten airways.
6. Sleep disturbances or vivid dreams
Some people report insomnia, unusual dreams, or lighter sleep.
7. Depression or mood changes
Not everyone experiences this, but some users report feeling low or emotionally flat.
8. Nausea or stomach discomfort
Mild digestive upset can occur, especially when starting the medication.
9. Exercise intolerance
Because the heart rate response is blunted, you may notice reduced stamina during workouts.
10. Low blood pressure (hypotension)
If the dose is high or combined with other BP-lowering drugs, it can cause weakness, dizziness, or fainting.
