ketamine
Intravenous ketamine versus esketamine for depression: a systematic review and meta-analysis (Elmosalamy, et al, 2025)
"Based on the currently available comparative evidence, which is almost entirely observational, IV ketamine and IN esketamine show comparable acute response and remission rates, though IV ketamine may act faster."
ketamine
Racemic Ketamine vs Esketamine in Treatment-Resistant Depression: The Overlooked Role of Arketamine (Tan, et al, 2025)
Evidence suggests that "IV racemic ketamine is more effective than IN esketamine in TRD; convergent preclinical and clinical findings support the hypothesis that arketamine plays a key role in this superiority and that ketamine’s antidepressant mechanisms extend beyond simple NMDAR antagonism."
iv ketamine
Spotlight: First study to compare two ketamine therapies for patients with severe depression
IV ketamine found to offer faster response with greater improvements than FDA-approved intranasal esketamine (Spravato)
ketamine
Spotlight: Comparative Effects of Repeated Ketamine Infusion Versus Intranasal Esketamine in Patients With Treatment-Resistant Depression: A Retrospective Chart Review (Meisner, et al, 2025)
"In this naturalistic sample of patients with similarly severe TRD treated in a ketamine subspecialty service over a 4–5-week induction period, treatment with IV racemic ketamine was associated with a more rapid response and greater overall efficacy than treatment with IN esketamine."
