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What are possible side effects of beta blockers?

Donna Hill Howes, RN
Family Practitioner

Side effects may include dizziness, fatigue, sleep disturbances, nausea, diarrhea, and abdominal discomfort. Other side effects include wheezing, shortness of breath, and worsening of symptoms of asthma and COPD (chronic obstructive lung disease). Some beta blockers may increase the risk for type 2 diabetes, worsen glucose control, and mask the symptoms of low blood sugar.

People with coronary artery disease should not skip doses or stop taking a beta blocker. This can lead to unstable angina or, in rare cases, a heart attack. The drug dosage should be reduced gradually as directed by a doctor over a period of 2 to 3 weeks.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.