Metoprolol Side Effects: 10 You Should Know
Metoprolol is a beta-blocker commonly prescribed for conditions such as high blood pressure, angina (chest pain), certain heart rhythm problems, and heart failure. Like all medicines, it can cause side effects, although many people tolerate it well.
Common side effects
- Tiredness or fatigue
- Feeling unusually low on energy is one of the most commonly reported effects.
- Dizziness or lightheadedness
- This can happen, especially when standing up quickly, because metoprolol can lower blood pressure.
- Slow heartbeat (bradycardia)
- A slower pulse is an expected effect, but an unusually slow heart rate may need medical attention.
- Cold hands and feet
- Reduced circulation to the extremities can make hands or feet feel colder.
- Sleep problems or unusual dreams
- Some people report insomnia, vivid dreams, or changes in sleep patterns.
- Nausea or stomach upset
- Digestive symptoms may occur, especially when starting treatment.
- Shortness of breath or reduced exercise tolerance
- Some people notice they tire more easily during physical activity.
- Mood changes
- Rarely, people may experience low mood, depression, or other emotional changes.
- Sexual side effects
- Some people report decreased sexual interest or erectile difficulties.
- Low blood sugar warning signs may be masked
- In people with diabetes, beta-blockers can hide some symptoms of low blood sugar, such as a fast heartbeat.
Seek medical advice urgently if you experience:
- Fainting or severe dizziness
- Very slow or irregular heartbeat
- New or worsening chest pain
- Severe shortness of breath, wheezing, or swelling of the legs
- Signs of an allergic reaction (such as facial swelling or difficulty breathing)
Important safety points
- Do not stop metoprolol suddenly unless a healthcare professional tells you to. Abrupt stopping can worsen some heart conditions and may increase the risk of serious heart problems.
- Take it exactly as prescribed and discuss any bothersome effects with your doctor.
- Your dose may need adjustment depending on your blood pressure, heart rate, kidney/liver health, and other medicines.
If you take metoprolol, tell me your dose (for example 25 mg, 50 mg, 100 mg), why you take it, your age, and any symptoms you’re noticing, and I can help you understand whether they may be related.
