Treatment Issues Related to the Use of Psychedelics, Trichotillomania, Social Anxiety Disorder, Schizophrenia, and Opioid Use Disorder.

An introduction to articles in the issue is presented on topics including efficacy of memantine for treating trichotillomania and skin picking disorder, efficacy of a novel treatment for motivation-related negative symptoms in schizophrenia, and antipsychotic monotherapy versus polypharmacy in relation to nonpsychiatric hospitalizations.