
Episode 64 - What the Research Says About Ketamine for Postpartum Depression
Clinical Disclaimer: This episode is for educational purposes for licensed healthcare professionals and is not individual medical advice. Ketamine and esketamine are not FDA‑approved for preventing or treating postpartum depression; any use in this population is off‑label and should be considered investigational and undertaken only with appropriate training, collaboration, and adherence to current standards of care. Postpartum depression affects roughly 10 to 20 percent of mothers and remains one of the most undertreated conditions in medicine. As public awareness of maternal mental health grows, providers in the ketamine and psychedelic therapy space are increasingly asking: is there a role for ketamine or esketamine here? This episode is our evidence-based answer to that question. We walk through the current clinical literature on ketamine and esketamine for perinatal depression, drawing on randomized controlled trials, meta-analyses, and expert commentary from institutions including the Center for Women's Mental Health at Massachusetts General Hospital. The research landscape is more nuanced than most providers realize, and understanding it clearly matters both for patient conversations and for how you think about your practice's scope. One distinction shapes everything that follows in this episode, and it's an important one: virtually all of the existing trial data involves perioperative prevention in cesarean delivery populations, not outpatient treatment of established postpartum depression . Knowing what the evidence actually supports and where the gaps remain is essential context for any provider working in this space. What You’ll Gain · A clear breakdown of what current ketamine and esketamine trials actually show for postpartum depression prevention , and what limited data exist for treatment . · An understanding of why racemic ketamine and esketamine tell different stories in the peripartum literature. · The key ethical and practical considerations for any provider thinking about this population. · An honest framework for how to talk with patients who ask about ketamine for postpartum depression. · Context on what the research gaps mean for where this field is heading. Review the research behind this episode, including full citations for every study discussed, in the Clinical References and Further Reading . 📖 Prefer to read? We turned this episode into a full blog post with structured tables comparing the racemic ketamine and esketamine evidence side by side, plus a research gaps summary you can reference and share with your team: Read the Blog Post Episode 64 show notes: 00:00:06 Episode Introduction 00:02:02 Clinical Context: Defining PPD, Postpartum Psychosis, and Perinatal Depression 00:03:34 Prevalence, Public Health Burden, and Why Cesarean Delivery Matters Here 00:04:40 Why Ketamine and Esketamine Are Conceptually Interesting in This Population 00:05:38 Prevention vs. Treatment: A Critical Framing Point Before the Research 00:06:32 Racemic Ketamine in the Peripartum Setting: Mixed and Conflicting Signals 00:09:22 What the Meta-Analyses Tell Us: Darwish et al. 2025 and Li et al. 2024 00:11:18 Bottom Line on Racemic Ketamine in the Peripartum Setting 00:12:05 Esketamine: Why It May Outperform Racemic and Why This Is Not About Spravato 00:13:32 The Esketamine Trials: From Early Signals to the 2024 BMJ Landmark Study 00:18:51 Treatment vs. Prevention: What About Established PPD? 00:21:29 Ethical and Practical Considerations 00:21:40 Lactation and Infant Exposure 00:22:14 Neurodevelopment Data: The Long-Term Unknown 00:22:35 Informed Consent in the Peripartum Period 00:23:04 The Tension Between Rapid Relief and Premature Clinical Adoption 00:24:10 Clinical Takeaways, Research Gaps, and What Cautious Optimism Looks Like in Practice 00:24:27 What the Evidence Supports: Esketamine Summary 00:25:23 What the Evidence Does Not Yet Support: Outpatient PPD Use 00:25:41 Bottom Line on Racemic Ketamine: Summary 00:26:07 Five Research Gaps the Field Needs to Address 00:27:56 What This Data Means for Ketamine Therapy Providers Right Now 00:30:03 Closing Remarks Thanks for Listening 📝 For Complete show notes along with the the research behind this episode, including full citations for every study discussed, please visit http://www.ketaminestartup.com/podcast/episode-064















