DUOCETZ should not be administered to patients who have previously demonstrated hypersensitivity to tramadol, paracetamol, any other component of this product or opioids.
It is contraindicated in any situation where opioids are contraindicated, including acute intoxication with any of the following: alcohol, hypnotics, narcotics, centrally acting analgesics, opioids or psychotropic drugs. It worsens central nervous system and respiratory depression in these patients.