Brief Report: Predictors of Relapse for Patients With Dextromethorphan Dependence.

This study first identified a high relapse rate among patients with DXM dependence and found that the baseline depression and anxiety status was correlated with the time length of relapse. These findings not only warn us of the vulnerability of DXM-dependent relapse but also reveal the importance of measuring affective disturbance in relapse prevention. (Am J Addict 2020;00:00-00).