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1 study found for:    21467190 [PUBMED-IDS]
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Rank Status Study
1 Completed The Discriminative Effects of Tramadol in Humans
Conditions: Opioid Abuse;   Opioid Addiction;   Stimulant Abuse;   Stimulant Addiction
Interventions: Drug: tramadol;   Drug: hydromorphone;   Drug: methylphenidate;   Drug: placebo

Study has passed its completion date and status has not been verified in more than two years.