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What side effects of morphine controlled release should I report?

Taking morphine controlled release may cause a variety of side effects. Tell your doctor about any that become serious and persistent. Contact your doctor immediately if you develop any of the following:
  • breathing difficulty
  • changes in skin color (your skin turns blue or purple, for example)
  • rapid or slow heartbeat
  • seizures
  • hallucinations (you see or hear things that do not exist)
  • vision problems
  • fainting
  • hives, rash, itchiness or other skin problems
  • tightness in your throat or difficulty swallowing
  • swollen arms, hands, feet, ankles or lower legs
These effects may linger even after stopping the controlled release dosage form of the medication.

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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.