10 Often-Overlooked Metoprolol Side Effects
Metoprolol is a beta-blocker used for conditions including high blood pressure, angina, certain heart-rhythm problems, and heart failure. Side effects vary between people and can depend on the dose and formulation.
Some effects that can be overlooked include:
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Fatigue or unusual tiredness — metoprolol can slow the heart rate and may make some people feel less energetic.
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Dizziness or lightheadedness — particularly when standing up quickly.
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Cold hands and feet — reduced circulation to the extremities can cause a noticeable change in temperature.
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Sleep disturbances — some people report difficulty sleeping or unusual/vivid dreams.
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Headache — can occur, particularly when starting treatment.
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Nausea or stomach discomfort — gastrointestinal symptoms are possible.
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Shortness of breath — this can occasionally occur and deserves attention, especially in someone with asthma or another lung condition.
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Depressed mood — mood changes have been reported, although the relationship with beta-blockers can be complex.
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Reduced exercise tolerance — because the medication limits how much the heart rate rises during physical activity.
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Sexual difficulties — decreased libido or erectile difficulties can occur in some people.
When to seek medical attention
Do not suddenly stop metoprolol without medical advice. Abrupt discontinuation can cause serious heart-related problems in some people.
Seek urgent medical help for fainting, severe difficulty breathing, chest pain, a very slow or irregular heartbeat, or swelling accompanied by worsening shortness of breath.
If you’re taking metoprolol and tell me your dose, formulation (metoprolol tartrate or succinate), and the symptom you’re experiencing, I can explain whether that symptom is a recognized side effect and what is generally recommended.
