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Welcome back to The Drop In, DoubleBlind’s newsletter serving up news, culture, and independent journalism about psychedelics straight to your inbox.
Happy belated Mother’s Day! Today’s lead story is about the Deva Collective’s new ketamine-assisted therapy study looking at how the treatment might impact women experiencing postpartum depression. It also dives into why we desperately need data around psychedelic medicine and women’s health. You can find that story immediately below!
If you keep scrolling, you’ll find stories about Saudi Arabia, how to trip in nature safely, capitalism in psychedelics, poaching iboga, and more.
In solidarity with Mothers everywhere🌸,
Mary Carreón
Editor-in-Chief

Together With EdenDirect
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If you’re consuming in this category, this guide is worth reading first.
Featured

Deva Collective Is Working to Make Ketamine Therapy Accessible to New Mothers
The Bay Area nonprofit is launching a first-of-its-kind study into ketamine-assisted psychotherapy for postpartum depression, arguing that current treatments are too expensive, inaccessible, and difficult on nursing mothers.
The Deva Collective, a Bay Area nonprofit dedicated to advancing psychedelic medicine for women’s health, recently announced that it will be launching a ketamine-assisted psychotherapy study for women experiencing postpartum depression. They also announced that their active microdosing study for perimenopausal women, called "Attitudes, Opinions and Experiences of Perimenopausal Women Who Microdose San Pedro”, officially received Institutional Review Board (IRB) approval. Both are major milestones, the organization says, that are part of a broader effort to close the research gap in women’s health.
"I've been wanting to do the postpartum work for a while ... and now we're at the really beginning stages of putting together the lit review and the IRB proposal,” says Melissa Whippo, a licensed clinical social worker and Deva Colective’s founder. “We have amazing people who want to help us with the study, [including] physicians and researchers."
Postpartum depression affects nearly 1 in 8 women in the U.S. following childbirth, according to data from the Centers for Disease Control and Prevention. Across the world, that figure jumps to 1 in 5. Despite the prevalence, the National Institutes of Health estimates that up to 50% of cases remain undiagnosed due to stigma and patients’ reluctance to report symptoms. Left untreated, however, the condition can persist for years. A 2022 systematic review found that up to 40% of mothers reported depression one to 12 years after giving birth.
Whippo tells DoubleBlind in a phone interview that existing treatment options fall far short of what postpartum patients (read: new mothers) need. Antidepressants, the most common intervention, take upwards of six weeks to take effect, and she said their safety profile for breastfeeding mothers remains understudied. One FDA-approved IV drug, brexanolone, shows efficacy for severe cases but requires a mother to be hospitalized, separated from her newborn, and to cease breastfeeding.
"[Brexanolone] costs $30,000," Whippo says. "It feels so unethical to me that this is what we have to offer new moms who are struggling."
Zulresso, the brand-name version of brexanolone, had a list price of $34,000 for a 60-hour IV treatment — not including hospital costs. It has since been discontinued for a replacement drug called Zurzuvae, which is an oral treatment for postpartum.
Whippo says ketamine-assisted therapy delivered intramuscularly in an clinical setting could be a more practical option for new mothers that doesn’t require hospitalization, a six-week window to experience relief, doesn’t cost $34,000, or cessation of breastfeeding. Plus, existing safety data indicate that ketamine levels in breast milk decline rapidly, reaching negligible levels within 12 hours of intramuscular administration. In her clinical practice, Whippo says she’s seen the treatment work.
"The postpartum patients who receive ketamine, they don't need very much," she said. "The medicine experience tends to be powerful enough that it shifts something, and then the therapy can really work with that shift."
Spravato, an FDA-approved ketamine nasal spray, is currently the most available ketamine treatment and is covered by many insurance providers. But breastfeeding is an explicit contraindication for Spravato due to a lack of safety data on whether it passes into breastmilk. Intramuscular ketamine — which Deva Collective’s study uses — has been studied specifically in lactating women. Existing data show that ketamine in breastmilk declines to negligible levels in half a day’s time after administration, suggesting it may be the more viable route for nursing mothers. (Whippo is a co-author on the study showing that ketamine levels are minimal in a woman’s breastmilk after 12 hours.)
Deva Collective is currently developing the IRB proposal for the postpartum study. The primary obstacle, Whippo said, is funding. She explains that those who hold the majority of the capital in the psychedelic space are sought out by many people — everyone working on projects or initiatives — making it difficult to secure necessary fiscal resources.
“We need money,” she says. “I’m so tired of asking other women to work for free.”
She noted that maternal mental health has struggled to attract donors in the psychedelic research space. That shouldn’t come as a surprise, considering that even as overall NIH funding has increased nealy 100% over the past decade, research funding specifically for women’s health grew just 11% and accounts for only between 8.8% and 10.8% of the NIH’s total budget, despite women comprising more than half the the U.S. population, according to a 2024 report from the National Academies of Sciences, Engineering, and Medicine. Without peer-reviewed research looking into ketamine-assisted therapy for postpartum mothers, intramuscular ketamine treatment remains classified as a novel, experimental treatment, giving insurance companies no clinical basis to cover it. That means only people who can pay out of pocket will have access to it. Whippo sees donor investment as the first step toward a future where the treatment will be widely available.
"If there's published evidence-based data, then insurance companies are more likely to reimburse...the research is so important,” Whippo says, “it really does help increase and expand access."
On the perimenopause side, Deva Collective has gathered its first survey responses for its IRB-approved study examining how women who microdose San Pedro cactus describe effects on mood, cognition, and quality of life during the perimenopausal transition. The study, which is among the first of its kind in the U.S., took two years to receive IRB approval, in part because San Pedro contains mescaline, a Schedule I drug.
The survey will remain open until September. Women who are currently microdosing San Pedro during perimenopause can and are encouraged to participate. (You can do so here.)
"These studies reflect a new paradigm for psychedelic research — one that centers women's lived experience, safety, and dignity,” Whippo says. “We are building the clinical and ethical infrastructure needed to ensure these medicines are studied not just for efficacy, but for how they are held, integrated, and woven into real lives."
*This story has been edited to clarify that the 1 in 8 figure for postpartum depression is a U.S. figure, and that the last quote of the story was said by Melissa Whippo.

Sneak Peek
What Happens When Firefighters Do Ketamine Therapy for PTSD?
Firefighters don't talk about what they see. The fraternal culture of the firehouse demands they tough it out in silence — and for decades, they have, at enormous cost.
"Quiet the Sirens," a new documentary on ketamine-assisted therapy, follows three British Columbia firefighters who wanted to stop suffering and turned to ketamine-assisted therapy. It's advocacy filmmaking, and it knows it — but buried beneath the stock footage and eye-mask imagery are genuinely urgent questions about trauma, healing, and what it means to treat these experimental drug therapies as medicine rather than poison.
Update your subscription here to get the full story in your inbox on Friday!
& More Must-Reads
A never-before-seen archive of letters, photographs, and lab equipment from Ann and Sasha Shulgin is on public display in Berkeley for one month only. Read more.
Most of the iboga used in Western healing ceremonies was likely poached illegally from Gabon's forests, and the plant may disappear from the wild entirely if nothing changes. Read more.
The psychedelic industry is booming, but the Indigenous communities who stewarded these medicines for centuries aren't seeing a cent of it. Read more.
In Saudi Arabia, psychedelics are considered haram, and possession can mean prison or worse, but one woman is building a community anyway. Read more
Tripping in nature can make a psychedelic experience more profound, but a dislocated finger or a wrong turn at dusk can derail even the most transcendent afternoon. Here’s how you can stay safe. Read more.

DoubleBlind Digs
PARTICIPATE ON SAN PEDRO: Are you between 30 and 50, in perimenopause, and microdosing San Pedro? Deva Collective wants to hear about your experience. Take the anonymous 20-minute survey here.
CHECK YOUR SHROOMS: Think your mushroom products contain psilocybin? Some don’t contain any at all. This free guide breaks down how to spot misleading formulations, decode labels, and understand what’s actually inside before you buy. Includes a simple ingredient chart worth saving. 👉 Download Now
READ ON ACID: "The Family Acid: California" is a 192-page hardcover photo book documenting one family's life inside the psychedelic counterculture of the Golden State. Grab a copy here.
CELEBRATE PLEASURE: Foria’s Pleasure Set combines their cult-favorite Awaken Arousal Oil, Sex Oil, and Intimacy Melts for deeper connection and comfort.
👉 Shop NowDONATE TO WIXÁRIKA: Deep in the sierras of Jalisco, Mexico, Tamaatsi Páritsika is a community-built, Indigenous-led high school shaped by Wixárika tradition and peyote cosmology, where students learn everything from ancestral language to agroforestry in a school literally designed in the form of a sacred plant. After 13 generations of students, their funding has run dry, and they need just $7,000 USD to cover basic infrastructure so they can keep their doors open. Donate here.
PARTICIPATE ON MUSHROOMS: Are you microdosing psilocybin? Researchers want to hear from women about how it's affecting their mental health, hormone health, and overall wellbeing. Take the survey here.
Together With EdenDirect
Did you know?
Not all mushroom products actually contain psilocybin.
Many are formulated with adaptogens, stimulants, and “feel-alike” compounds designed to mimic parts of the experience without the primary molecule most people think they’re taking.
That’s why Eden created a 13-page guide to help you decode labels, spot misleading formulations, and better understand what’s actually inside. Includes a simple ingredient breakdown chart you’ll want to save before your next purchase.

Around the Web
A new study out of Switzerland found that psychedelic-assisted therapy with either LSD or psilocybin produced significant reductions in depression and anxiety in treatment-resistant patients, and both substances worked equally well. Read more.
The Trump administration's drug czar is clarifying that the recent federal rescheduling of cannabis doesn't make it broadly legal; it's still illegal, just with new carve-outs for medical use and research. Read more.
A small pilot study found that adults with major depression reported feeling more energetic, creative, and socially connected on days they microdosed LSD, with overall depression severity dropping 60% by the end of the eight-week trial. Read more.
A new study found that the strongest predictor of mystical experiences isn't how often someone uses psychedelics or whether they've had a near-death experience, but rather their willingness to surrender control and their psychological flexibility. Read more.
Johnson & Johnson turned Spravato, a ketamine-derived nasal spray for treatment-resistant depression, into a $1.7 billion blockbuster by cracking the code on insurance reimbursement — and now the entire psychedelic therapy industry is trying to copy the model. Read more.
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