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Beta Blockers (cont.)

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What are the side effects of beta blockers?

Beta blockers are usually well tolerated and most adverse events are mild. Beta blockers may cause diarrhea, stomach cramps, nausea and vomiting. Rash, blurred vision, muscle cramps, and fatigue have also been reported. Beta blockers may cause hypoglycemia or hyperglycemia and mask the symptoms of hypoglycemia in diabetic patients. Effects on the heart and circulatory system include bradycardia (slow heart rate), hypotension (low blood pressure), heart failure or heart block in patients with heart problems, cold extremities due to reduced circulation. Abrupt withdrawal of beta blockers may worsen angina (chest pain) and cause heart attacks or sudden death. Effects on the central nervous system include headache, depression, confusion, dizziness, nightmares, and hallucinations. Beta blockers may cause shortness of breath in asthmatics. Sexual dysfunction may also occur.



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