10 metoprolol side effects worth knowing
Metoprolol is a beta-blocker commonly prescribed for high blood pressure, angina, certain abnormal heart rhythms, and some heart conditions. Many people tolerate it well, and side effects are often mild and improve as the body adjusts. nhs.uk+1
Possible side effects include:
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Tiredness or unusual fatigue
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Dizziness or lightheadedness
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Weakness
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A slow heartbeat (bradycardia)
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Low blood pressure
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Cold hands or feet
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Headache
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Nausea, stomach pain, diarrhea, or vomiting
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Sleep disturbances or vivid dreams
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Depressed mood or sexual difficulties — sexual side effects have been reported, although evidence for metoprolol specifically causing them is less certain. nhs.uk+2
Important precautions
Metoprolol can mask some warning symptoms of low blood sugar, which is particularly relevant for people with diabetes. It can also aggravate breathing problems in susceptible people and may worsen symptoms of certain circulation problems. DailyMed+1
Don’t stop metoprolol suddenly. Abrupt withdrawal can worsen heart-related problems, so any dose reduction or discontinuation should be planned with your prescriber. nhs.uk+1
🚨 Get medical help promptly
Seek urgent medical attention for new or worsening chest pain, severe shortness of breath, fainting, a very slow heartbeat with symptoms, or signs of a serious allergic reaction. nhs.uk+1
Bottom line: Feeling tired or dizzy when starting metoprolol can happen, but persistent or troublesome symptoms should be discussed with your doctor or pharmacist rather than stopping the medicine yourself.
