10 Important Side Effects of
Metoprolol
Metoprolol
is
a beta-blocker commonly used for high blood pressure, angina, certain heart-rhythm problems, and heart failure. Most side effects are mild, but some require
medical attention.
- Slow heartbeat (bradycardia) — Your pulse may become slower than usual, sometimes causing weakness, dizziness, or fainting.
- Low blood pressure — This can cause lightheadedness, especially when standing up quickly.
- Tiredness or fatigue — Feeling unusually tired is one of the more common effects.
- Dizziness — Particularly when starting treatment or after the dose is increased.
- Cold hands and feet — Reduced circulation to the extremities can make them feel unusually cold.
- Shortness of breath — Metoprolol can occasionally worsen breathing problems, particularly in people with asthma or other airway disease.
- Sleep problems or vivid dreams — Some people experience insomnia, unusual dreams, or disturbed sleep.
- Depression or mood changes — Mood changes can occur, although they aren’t common.
- Sexual problems — Reduced libido or erectile dysfunction can occur in some people.
- Worsening heart failure symptoms — Rarely, particularly when treatment is started or the dose is increased, symptoms such as swelling, rapid weight gain, or increasing breathlessness can worsen.
When to seek urgent help
Get urgent medical attention for fainting, severe difficulty breathing, chest pain, a very slow heartbeat, severe swelling, or signs of a serious allergic reaction.
Important: Don’t suddenly stop metoprolol without medical advice. Abrupt withdrawal can cause a dangerous increase in heart rate or blood pressure and may worsen angina or other heart problems.
If you tell me your metoprolol dose (e.g., 25 mg, 50 mg, 100 mg) and whether it’s metoprolol tartrate or succinate, I can also explain the most likely side effects at that dose and which ones are concerning.
