alexa Abuse potential and pharmacological comparison of tramadol and morphine.


Journal of Addiction Research & Therapy

Author(s): Preston KL, Jasinski DR, Testa M

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Abstract The purpose of the study was to assess the abuse potential of the opioid analgesic tramadol. Tramadol (75, 150 and 300 mg), morphine (15 and 30 mg) and placebo were tested intramuscularly in volunteer non-dependent opiate abusers. Subjective, behavioral and miotic changes were assessed prior to dosing and intermittently for 12 h after drug administration. Morphine produced typical subjective effects, opiate identifications and miosis. Tramadol 75 and 150 mg were not different from placebo. Although tramadol 300 mg was identified as an opiate, it produced no other morphine-like effects. These findings suggest that tramadol has a low abuse potential by the parenteral route.
This article was published in Drug Alcohol Depend and referenced in Journal of Addiction Research & Therapy

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