If you’re looking for a patient-friendly guide, here are 10 commonly reported side effects of metoprolol. Not everyone experiences them, and many are mild or improve as the body adjusts:
Tiredness or fatigue — one of the most common effects.
Dizziness or lightheadedness — particularly when standing up quickly.
Slow heart rate (bradycardia) — metoprolol intentionally lowers heart rate, but it can occasionally become too low.
Low blood pressure — may cause weakness, dizziness, or fainting.
Cold hands and feet — reduced circulation to the extremities can cause this sensation.
Shortness of breath — more likely in susceptible people, particularly those with asthma or other lung disease.
Sleep disturbances or unusual dreams — some people report insomnia or vivid dreams.
Depressed mood — mood changes can occur, although they aren’t experienced by everyone.
Nausea or stomach upset — usually mild.
Headache — can occur, especially when beginning treatment.
When to seek medical attention
Contact a healthcare professional promptly for fainting, very slow heartbeat, severe shortness of breath, swelling, chest pain, or a significant worsening of heart symptoms.
Also, don’t stop metoprolol suddenly unless a clinician tells you to. Abrupt withdrawal can cause a dangerous increase in heart rate and blood pressure and can worsen angina or other heart conditions.
If you tell me whether you’re taking metoprolol tartrate or metoprolol succinate, plus the dose, I can explain which side effects are most relevant to that specific formulation.
