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Tramadol is a mu opioid agonist that also inhibits the reuptake of norepinephrine and serotonin. Because non-medical use of prescription opioids, including tramadol, has increased in the U.S. over the last several years, we sought to profile its subjective, psychomotor, and physiological effects in recreational drug users. Twenty-two subjects received placebo, 50 or 100mg tramadol, morphine, or 2mg...
Hydrocodone (HYD) is a mu opioid agonist. Hydrocodone/acetaminophen HYD/ACET compounds are both widely prescribed and abused prescription painkillers in the United States. In the present study, we profiled the subjective, psychomotor, and physiological effects of the compound. It was of particular interest to determine if HYD/ACET had abuse liability-related subjective effects in a population of recreational...
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