Here are 10 known side effects of Metoprolol:
- Fatigue / tiredness – very common due to lowered heart rate and blood pressure
- Slow heart rate (bradycardia) – heart may beat slower than normal
- Dizziness or lightheadedness – especially when standing up quickly
- Low blood pressure (hypotension) – can cause weakness or faintness
- Cold hands and feet – reduced circulation to extremities
- Shortness of breath – more likely in people with asthma or lung disease
- Sleep problems or vivid dreams – some people notice unusual dreaming
- Mood changes (rare) – including low mood or depression-like symptoms
- Sexual dysfunction – reduced libido or erectile difficulties
- Digestive issues – nausea, diarrhea, or stomach discomfort
Important note: Most people tolerate metoprolol well, and side effects—if they occur—are often mild and dose-related. Never stop it suddenly without medical advice, because it can trigger rebound high blood pressure or heart rhythm issues.
If you want, I can also tell you which side effects are “normal adjustment” vs which ones need urgent medical attention.