10 Important Side Effects of Metoprolol to Know
Metoprolol is a beta-blocker commonly prescribed for high blood pressure, angina, certain abnormal heart rhythms, and some forms of heart failure. Many people take it without serious problems, but side effects can occur.
10 possible side effects
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Tiredness or fatigue — One of the more common effects, particularly when starting treatment.
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Dizziness or lightheadedness — Blood pressure and heart rate can fall, especially when standing up quickly.
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Slow heartbeat — Metoprolol intentionally lowers heart rate, but an excessively slow rate can be problematic.
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Cold hands and feet — Reduced peripheral circulation can make extremities feel colder.
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Low blood pressure — May cause weakness, dizziness, or fainting.
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Sleep disturbances or vivid dreams — Some people experience changes in sleep.
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Depressed mood — Mood changes have been reported, although depression has many possible causes.
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Shortness of breath or wheezing — This can be particularly important in people with asthma or other airway disease.
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Sexual difficulties — Some people experience decreased libido or erectile difficulties.
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Blood-sugar warning changes — Beta-blockers can sometimes mask warning symptoms of low blood sugar, particularly a rapid heartbeat, in people with diabetes.
🚨 When to seek medical attention
Seek urgent medical help for fainting, severe difficulty breathing, significant swelling, a very slow or irregular heartbeat, or symptoms of a serious allergic reaction.
Don’t stop metoprolol suddenly. Abrupt withdrawal can cause a rapid increase in heart rate and blood pressure and may worsen angina or increase cardiovascular risk. If you think you’re having side effects, contact your prescriber before changing the dose.
Also, not every symptom experienced while taking metoprolol is necessarily caused by the medicine. Your doctor or pharmacist can assess the timing, dose, other medications, and underlying conditions.
