It looks like you’re asking about metoprolol side effects and when they require urgent medical attention. Here’s a clear overview.

Metoprolol: 10 Side Effects & When to Call Your Doctor

Metoprolol is a beta-blocker commonly used for high blood pressure, chest pain (angina), heart rhythm problems, heart failure, and after certain heart attacks. It works by slowing the heart rate and reducing the heart’s workload.

Common side effects (often mild)

1. Tiredness or low energy
   • Feeling unusually fatigued is one of the most common effects, especially when starting treatment.
2. Dizziness or lightheadedness
   • May happen because blood pressure or heart rate drops.
   • Be careful when standing up quickly.
3. Slow heartbeat (bradycardia)
   • Metoprolol intentionally lowers heart rate, but an excessively slow pulse can be a concern.
4. Cold hands and feet
   • Reduced circulation to the extremities can cause this sensation.
5. Sleep problems or vivid dreams
   • Some people notice changes in sleep patterns.
6. Depressed mood or mood changes
   • Report persistent or troubling mood symptoms.
7. Nausea, diarrhea, or stomach discomfort
   • Digestive symptoms may occur, especially early on.
8. Shortness of breath during activity
   • This may occur in some people, though new or worsening breathing problems need attention.
9. Sexual side effects
   • Some people report reduced libido or difficulty with sexual function.
10. Weight gain

• Can occur in some patients, sometimes related to fluid changes or reduced exercise tolerance.

Seek medical help urgently if you notice:

🚨 Very slow heartbeat

• Fainting
• Severe dizziness
• Confusion
• Extreme weakness
• A pulse that is unusually slow for you

🚨 Signs of worsening heart failure

• New or increasing shortness of breath
• Swelling in the feet, ankles, or legs
• Rapid weight gain from fluid retention
• Trouble breathing when lying down

🚨 Severe allergic reaction

• Swelling of the face, lips, tongue, or throat
• Trouble breathing
• Hives or widespread rash

🚨 Chest pain or new heart symptoms

• New chest pressure
• Irregular heartbeat sensations
• Passing out