What is the risk of interaction between opioids and monoamine oxidase inhibitors (MAOIs)?

Article considers conflicting information about degree of risk of an interaction and suggests to avoid combination of dextromethorphan, methadone, pethidine, tramadol, fentanyl or tapentadol with an MAOI. Morphine, codeine, oxycodone and buprenorphine are suitable alternatives.

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