Common side effects (most people may notice)

These are usually mild and often improve with time:

• Fatigue or tiredness
• Dizziness or lightheadedness
• Slow heart rate
• Cold hands and feet
• Mild nausea
• Reduced exercise tolerance

⚠️ Less common side effects

These may need monitoring:

• Low blood pressure
• Sleep problems or vivid dreams
• Depression or low mood
• Shortness of breath (in sensitive individuals)
• Sexual dysfunction

🚨 Rare but serious side effects (seek medical attention)

These are uncommon but important:

• Very slow heartbeat (bradycardia) with fainting or weakness
• Worsening shortness of breath (especially in asthma/COPD patients)
• Severe dizziness or collapse
• Swelling of legs or sudden weight gain (possible heart issue)
• Allergic reactions (rash, swelling, difficulty breathing)

🧠 Important medical context

Metoprolol is widely prescribed because it:

• Lowers risk of heart attack and stroke
• Helps control blood pressure
• Stabilizes heart rhythm
• Reduces chest pain (angina)

So doctors always balance:

✔ Proven heart benefits
vs
⚠️ Manageable side effects

⚠️ Very important safety note

• ❌ Do NOT stop metoprolol suddenly
• It can cause rebound effects like:
  • Increased heart rate
  • High blood pressure
  • Chest pain

Any changes should be done under medical supervision.