What are the side effects of Avinza?

Narcotic pain relievers like Avinza can have a range of side effects. Call your doctor right away if you experience any of these serious side effects: blue or purple skin, blurred vision, change in heartbeat, difficulty swallowing, fainting, hallucinations, hives, itching, rash, seizures, slow or irregular breathing, swelling of the extremities or tightening of the throat. Less-serious side effects include:

  • agitation
  • chills
  • confusion
  • constipation
  • decrease in sexual desire or sexual ability
  • diarrhea
  • difficult or painful urination
  • dizziness
  • double vision
  • drowsiness
  • dry mouth
  • headaches
  • flu-like symptoms
  • inability to taste food
  • lightheadedness
  • loss of appetite
  • mood changes
  • nausea
  • nervousness
  • red eyes
  • sleep problems
  • small pupils
  • stiff muscles
  • sweating
  • uncontrollable shaking or eye movements
  • vomiting
  • weakness
  • weight loss

Call your doctor if these do not go away with time or become severe.

Avinza is a special formulation of morphine sulfate that is indicated for once-daily pain management. Some common side effects with Avinza include constipation, nausea, vomiting, fatigue and drowsiness. Currently, there is no evidence to suggest that Avinza will hurt your kidney or liver if taken within the recommended dosage range. If you have more concerns about the possible side effects with Avinza, you may want to discuss that 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.