10 Common Side Effects of Metoprolol
Metoprolol is a beta-blocker commonly prescribed for high blood pressure, angina, certain abnormal heart rhythms, and some heart-failure patients. Most people tolerate it well, but side effects can occur.
The 10 to know about
- Tiredness or fatigue — especially when first starting treatment.
- Dizziness or lightheadedness — often related to lower blood pressure.
- Slow heartbeat — metoprolol deliberately lowers heart rate, but an excessively slow pulse can be concerning.
- Low blood pressure — may cause weakness, dizziness, or fainting.
- Cold hands and feet — reduced peripheral blood flow can make extremities feel cold.
- Shortness of breath or wheezing — particularly important if you have asthma or another lung condition.
- Sleep problems or vivid dreams — some people experience insomnia or unusual dreams.
- Depressed mood — mood changes can occasionally occur.
- Sexual difficulties — decreased libido or erectile dysfunction may occur.
- Nausea or stomach discomfort — usually mild, but persistent symptoms should be discussed with a clinician.
One important warning 🚨
Don’t stop metoprolol abruptly. Sudden withdrawal can cause your heart rate and blood pressure to rise and may worsen angina or increase cardiovascular risk. If you need to stop it, your clinician can determine an appropriate taper.
Seek urgent medical attention for fainting, severe breathing difficulty, new/worsening chest pain, or a very slow heartbeat accompanied by significant weakness or dizziness.
If you’re experiencing a particular side effect, tell me your metoprolol dose, whether it’s metoprolol tartrate or succinate, and what symptom you’re having, and I can explain what may be going on.
