The evidence of a family-based treatment for adults who use psychotropic drugs in community setting.

The prevalence of drug use has emerged as a pressing public health concern, particularly in Hong Kong, where hidden drug use negatively affects mental health and family relationships. This quasi-experimental study investigated the effectiveness of family-based treatment for adults using psychotropic drugs in community settings. Significant reductions in drug use frequency (Cohen's d = 0.459, p = .010,) and improvements in mental health (Cohen's d = 0.634, p = .000) were observed. The findings underscore the critical role of family involvement in addressing drug use issues, highlighting the need for social work interventions that not only focus on the individual but also engage family members as active participants in the recovery process.