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Researchers from the University of Oxford, the Karolinska Institutet, Stockholm, the University of Colorado and Örebro University, Sweden, studied more than 21,000 individuals in Sweden who received treatment with at least one of four medications used to treat alcohol and opioid use disorders (acamprosate, naltrexone, methadone, and buprenorphine).
They compared rates of suicidal behaviour, accidental overdose, and crime for the same individuals during the period when they were receiving the medication compared with the period when they were not.