Less serious side effects of OxyContin include: nausea, lightheadedness, dry mouth, vomiting, constipation, weakness, itching, headache, mood changes, flushing, decrease of pupil size and loss of appetite. If any of these side effects becomes severe or will not go away, call your doctor. Call your doctor right away if you experience more serious side effects, including a rapid or slow heartbeat, fainting, seizure, difficulty breathing or slow breathing, rash or hives, difficulty swallowing, hoarseness, hallucinating, confusion, fainting or swelling of your throat, face, tongue or extremities.
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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.