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What are the undesirable side effects of propranolol?

Some possible, less serious side effects of propranolol include:
  • nausea
  • vomiting
  • abdominal cramps
  • constipation
  • diarrhea
  • impotence
  • low sex drive
  • insomnia
  • fatigue
Some people may be allergic to propranolol. Symptoms of an allergic reaction include:
  • troubled breathing
  • rash
  • hives
  • swelling of face, throat and mouth
  • sore throat
  • fever
Some less common, but more serious, symptoms include:
  • irregular heartbeat
  • fainting
  • lightheadedness
  • shortness of breath
  • fever, sore throat, skin rash or peeling and headaches
  • jaundice with pale stools, dark urine, fever, nausea and loss of appetite
  • depression
  • hallucinations or confusion
  • swollen hands and feet
  • coldness in hands and feet
Seek immediate medical attention if you experience any of the serious symptoms or an allergic reaction. Because other side effects may occur, you should notify a doctor about any new symptoms you experience so that a doctor can determine if they are related to the use of propranolol.

Less than 1% of iGuard patients taking propanolol reported weight gain as a side effect. Since weight gain is an undesirable side effect you should discuss your symptoms with your doctor.

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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.