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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Opioid with rnonoarnine action is?
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The correct answer is  Tramadol REF: Principles and practice of palliative care and suppoive oncology By Ann M. Berger, John L. Shuster, Jamie H. Von Roenn page 51 "Tramadol is synthetic analog of codeine that binds to the MOR (Mu opioid receptor) and blocks reuptake of serotonin and nor epinephrine. As a result of monoamine action naloxone cannot completely reverse its respiratory depression"