To the Editor In JAMA Psychiatry, Cubała et al. report that inhaled mebufotenin (GH001) reduced depression severity by 15.5 points more than placebo on the Montgomery-Åsberg Depression Rating Scale (MADRS) at 1 week, with 57.5% of patients achieving remission vs 0% in the placebo group. The effect size (d = −2.0) overwhelmingly surpasses those of selective serotonin reuptake inhibitors,...