This study compared how well psilocybin therapy works for people with treatment-resistant depression depending on whether they were already off antidepressants or had stopped taking them for the study. The researchers found that both groups improved similarly in depression and anxiety symptoms after receiving psilocybin with therapy support. These results suggest that stopping antidepressants before psilocybin treatment may not reduce its effectiveness, though more research is needed to fully understand the relationship between medication status and treatment outcomes.