The Poison Lab

Clinical Toxicology LLC

Dive into the captivating world of poisons with The Poison Lab! Hosted by Clinical Toxicologist Ryan Feldman (@EMPoisonPharmD), who has over a decade of managing poisoning and drug overdose via poison centers and in the emergency department. Also occasional co-hosted by his robo cohost Toxo! (@LabPoison). This show unpacks the fascinating history, cutting-edge science, and life-saving medical management of toxins from around the globe. From stories of those impacted to expert insights from pioneers in poisoning treatment, each episode brings you closer to understanding the poisons that lurk in plain sight. Explore episodes, med videos, games, and more at thepoisonlab.com—every poison has a story to tell!

  1. 24 May

    Gas Station Heroin? Kratom, Regulation, and Recovery — A Co-Broadcast with the Kratom Sobriety Podcast

    In this special co-broadcast episode, The Poison Lab joins forces with The Kratom Sobriety Podcast for a deeper conversation about kratom, regulation, addiction, recovery, and what poison center data can tell us about real-world harm. Kratom is a plant-derived substance that contains mitragynine and 7-hydroxymitragynine, compounds with opioid-like effects. It is sold in many forms, including powders, capsules, drinks, tonics, and concentrated extracts, often in gas stations, smoke shops, and online. For many people, kratom is encountered with little warning about its risks, including dependence, withdrawal, and toxicity. Study NewsThis episode grew out of our newly published study in Addiction, which examined kratom-related poison center calls across states with different legal approaches: states with bans, states with kratom consumer protection acts, and states with no specific regulation. The study began with a real policy question in Wisconsin: is the public better protected by prohibition, by regulated access, or by leaving kratom largely unregulated? As clinical toxicologists and poison center clinicians, our goal was not to write policy, but to add objective data to a debate that often moves faster than the evidence. Ryan discusses how that question led to a broader debate within medical toxicology and poison center circles: What are the harms of prohibition? What are the risks of unfettered access? Is regulation safer than a ban? And what can poison center data actually tell us about those questions? After the study was published, people reached out from several directions: journalists, policymakers, people concerned about the risks of prohibition, and people who had experienced harm from easy access to kratom. That included the team behind The Kratom Sobriety Podcast, who wanted to talk about the study and the lived experience of kratom dependence and recovery. The conversation highlights both the data and the human side of the issue: people who developed kratom dependence, struggled to stop, and found their way into recovery. The episode explores why policy decisions around kratom are so difficult, why easy access to opioid-like substances can be dangerous, and why lived experience matters alongside epidemiologic data. Topics covered include:What kratom is and why it is often called a “gas station drug”Mitragynine, 7-hydroxymitragynine, and opioid-like effectsKratom dependence, withdrawal, and recoveryHow poison centers track emerging substancesDifferences between state bans, consumer protection acts, and unregulated accessWhat poison center data can and cannot tell usWhy kratom policy is more complicated than “ban it” versus “leave it alone”The importance of listening to people with lived experience This episode is a longer-form conversation about science, policy, toxicology, and recovery. It is not medical advice, and it is not meant to tell any individual person what they should do. But it is meant to bring more evidence, nuance, and humanity into a debate that needs all three. If you or someone you know is struggling with kratom or any substance use, help is available. In the United States, you can contact the SAMHSA National Helpline at 1-800-662-HELP. Extras Free to read version of the study News articles about the study US Kratom Use Surges 65-Fold in 13 YearsCalls to poison centers over 'natural' supplement have skyrocketed by 6,500% since 2010Kratom Use Soars in US, Alters Lives Dramatically | Mirage NewsKratom use is surging in the US, with life-changing consequences, study revealsKratom use is surging in the US, with life-changing consequences | EurekAlert!

    1hr 16min
  2. 7 May

    Outbreak: 75 Fatalities After a Funeral Poisoning in Mozambique

    In this episode of The Poison Lab Outbreak, Ryan talks with Dr. Alaina Steck about a devastating mass poisoning in Mozambique that began at a funeral and ultimately sickened more than 200 people, with a fatality toll of over 70. Early reports blamed crocodile bile. Others suspected intentional poisoning. But as the investigation unfolded, the clinical picture, timeline, and exposure history did not fit neatly with the early theories. Dr. Steck, then a medical toxicology fellow at Emory, joined a CDC-supported outbreak investigation team sent to Mozambique. She walks through what it was like to investigate the outbreak on the ground, including the overwhelmed rural health center, limited medical records, scarce biological and environmental samples, early toxicologic hypotheses, and the eventual role of comparative food testing in identifying the cause. This episode explores the real-world uncertainty of outbreak investigation: incomplete data, competing theories, community fear, and the importance of epidemiology, toxicology, public health, and analytical chemistry working together. Topics CoveredMass poisoning investigation in rural MozambiqueEarly reports of crocodile bile and suspected intentional poisoningClinical presentations including GI symptoms, seizures, pulmonary edema, liver injury, kidney injury, and multisystem diseaseChallenges of interpreting sparse medical records during a mass casualty eventHow toxicologists approach possible intentional poisoningWhy exposure history and timing matter in outbreak investigationThe importance of control samples in analytical testingLessons for clinicians, poison centers, and public health teams GuestDr. Alaina Steck Medical toxicologist, Emory University Former medical toxicology fellow involved in the CDC-supported investigation of the Mozambique outbreak Resources (Spoilers)Outbreak paperU.S. Case Instagram @tox_talk • Twitter @LabPoison • Email toxtalk1@gmail.com Disclaimer: The Poison Lab is for educational purposes only and does not provide medical advice. If you suspect a poisoning, contact your local poison center. In the U.S., call 1-800-222-1222. A Morel DilemmaSupport the showReview the show where ever your listening Get Messages from Toxo (Join the Newsletter!) Join as a supporting member Ad free episodesBonus content and early accessDiscounts and give aways on GOTA PICCEM Mushroom card game The GOTTA PICCEM Poisonous Mushroom Game! The Poisonus Fungus Amongus Children's Book! Full book reading (6 minutes!) Tox trinkets (Rep the show at home!) Reach the showEmail: Toxtalk1@gmail.com More Show Resources Ryan's Medical Games and ResourcesShow Website

    3 min
  3. 4 May

    Rebroadcast: Phenibut. The emerging drug you don’t know about (yet)

    Phenibut is an emerging and unfamiliar drug taking hold in the US that is readily available online and legal to obtain. It acts as a GABA-B agonist and carries risks of dependency and withdrawal. In this episode Ryan interviews phenibut users as well as experts involved in phenibut treatment. They explore the history, current trends, toxicity, and management of phenibut, a novel GABA-B agonist. He is joined by guest Dr. Matthew Stanton PharmD and Dr. Benjamin Weston MD who listen in to an audio documentary that includes clips from Dr. Janessa Graves PhD and Dr. Erica Liebelt MD who wrote a recent report on increasing phenibut exposures, Dr. Dan McCabe MD who is the author of the largest published phenibut case series, and Elliot, a recovered phenibut user who we would like to sincerely thank for sharing his story of use and recovery. +Update- a systematic review of phenibut withdrawal treatment strategies authored by the poison lab host himeself, Ryan!+ More on St Anthony's fire CDC MWR Study documenting increased poison center exposures (Dr. Graves & Dr. Liebelt) Phenibut case series from Dr. McCabe All published cases of phenibut withdrawal, reported baclofen regimens, clinical outcomes, multimodal therapiesTHEORETICAL UNTESTED Phenibut withdrawal treatment schema (Not tested, not intended as treatment, intended to stimulate discussion and highlight key considerations in managing withdrawal) A Morel DilemmaSupport the showReview the show where ever your listening Get Messages from Toxo (Join the Newsletter!) Join as a supporting member Ad free episodesBonus content and early accessDiscounts and give aways on GOTA PICCEM Mushroom card game The GOTTA PICCEM Poisonous Mushroom Game! The Poisonus Fungus Amongus Children's Book! Full book reading (6 minutes!) Tox trinkets (Rep the show at home!) Reach the showEmail: Toxtalk1@gmail.com More Show Resources Ryan's Medical Games and ResourcesShow Website

    1hr 6min

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About

Dive into the captivating world of poisons with The Poison Lab! Hosted by Clinical Toxicologist Ryan Feldman (@EMPoisonPharmD), who has over a decade of managing poisoning and drug overdose via poison centers and in the emergency department. Also occasional co-hosted by his robo cohost Toxo! (@LabPoison). This show unpacks the fascinating history, cutting-edge science, and life-saving medical management of toxins from around the globe. From stories of those impacted to expert insights from pioneers in poisoning treatment, each episode brings you closer to understanding the poisons that lurk in plain sight. Explore episodes, med videos, games, and more at thepoisonlab.com—every poison has a story to tell!

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