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    Health & Fitness

    The Poison Lab

    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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    Copyright: © thepoisonlab

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    Latest Episodes:
    A Morel Dilemma: Bonus — Who Treats Mushroom Poisoning Jun 03, 2026
    Show notes

    Who actually treats mushroom poisoning?

    In this short mini episode, we answer a surprisingly important question: when someone gets sick after eating a mushroom, who do they call, and who helps the doctors figure out what to do next?

    We break down the role of poison centers, medical toxicologists, emergency clinicians, and why the most important number to remember is 1-800-222-1222.

    A Morel Dilemma

    Support the show

    Review the show where ever your listening

    Get Messages from Toxo (Join the Newsletter!)

    Join as a supporting member

    • Ad free episodes
    • Bonus content and early access
    • Discounts 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 show

    • Email: Toxtalk1@gmail.com

    More Show Resources

    • Ryan's Medical Games and Resources
    • Show Website


    A Morel Dilemma: Bonus — Remembering poisonous mushrooms (GOTTA PICCEM) Jun 03, 2026
    Show notes

    In this bonus episode, Dr. Rob Bassett from Philadelphia Poison Control walks us through one of the most useful teaching tools in mushroom toxicology: GOTTA PICCEM.

    This mnemonic organizes toxic mushrooms by their clinical syndromes and, most importantly, by the timing of symptom onset. That timing can be one of the biggest clues toxicologists use to decide whether a mushroom exposure is likely to be mild, dangerous, or potentially life-threatening.

    Dr. Bassett is a gifted educator, and in this episode he breaks down the major mushroom toxins in a way that is practical, memorable, and useful for anyone who might someday need to recognize a serious mushroom poisoning.

    Select Resources:

    1. Richard Hamilton's Original Mnemonic

    A Morel Dilemma

    Support the show

    Review the show where ever your listening

    Get Messages from Toxo (Join the Newsletter!)

    Join as a supporting member

    • Ad free episodes
    • Bonus content and early access
    • Discounts 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 show

    • Email: Toxtalk1@gmail.com

    More Show Resources

    • Ryan's Medical Games and Resources
    • Show Website


    A Morel Dilemma: Bonus — Muscarine Poisoning Jun 03, 2026
    Show notes

    This bonus episode takes a deeper look at the muscarine poisoning case discussed by Dr. Matthew Stanton. We break down how muscarine causes toxicity, why its symptoms can become life-threatening, and why its important for foragers to recognize so they can be treated.

    Select References:

    1. Dr. Stanton's case report
    2. Wisconsin Muscarine Case Series (Not yet available)

    A Morel Dilemma

    Support the show

    Review the show where ever your listening

    Get Messages from Toxo (Join the Newsletter!)

    Join as a supporting member

    • Ad free episodes
    • Bonus content and early access
    • Discounts 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 show

    • Email: Toxtalk1@gmail.com

    More Show Resources

    • Ryan's Medical Games and Resources
    • Show Website


    A Morel Dilemma: Episode 2 — Investigations and Falsehoods Jun 03, 2026
    Show notes

    As reports of severe illness and death come in, the Bozeman outbreak moves from medical mystery to full public health investigation. Local and state investigators race to identify the source, shut down the risk, interview patients, collect food samples, and figure out whether anyone else could still be in danger.

    The early signal points toward one unlikely ingredient: morel mushrooms. But for toxicologists, that raises more questions than answers. Morels are supposed to be edible. Rapid vomiting and diarrhea usually suggest foodborne illness, not a deadly mushroom poisoning. So investigators have to ask the question that will drive the rest of the series: is the morel really the culprit, or is something else hiding in the meal?

    In Episode 2 of A Morel Dilemma, we meet the public health team on the front lines, hear how the outbreak was contained, and begin testing the first theories behind what made diners so sick.

    Select references:

    1. False Morel Text Book
    2. FDA Survey of Imported Mushrooms Contamination with Toxic Species
    3. Dr. Vohra' study
    4. Bonus Episode on Remembering Toxic Mushrooms
    5. Dr. Stanton's Muscarine Case
    6. Bonus Episode on Muscarine

    A Morel Dilemma

    Support the show

    Review the show where ever your listening

    Get Messages from Toxo (Join the Newsletter!)

    Join as a supporting member

    • Ad free episodes
    • Bonus content and early access
    • Discounts 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 show

    • Email: Toxtalk1@gmail.com

    More Show Resources

    • Ryan's Medical Games and Resources
    • Show Website


    A Morel Dilemma: Episode 1 — Outbreak in Bozeman Jun 03, 2026
    Show notes

    A deadly outbreak begins with a single meal at a sushi restaurant in Bozeman, Montana. Within hours, diners develop severe nausea, vomiting, and diarrhea. Some collapse. Two people die. At first, it looks like food poisoning, but investigators quickly notice one strange ingredient connecting many of the sick patients: morel mushrooms.

    In the first episode of A Morel Dilemma, we meet the people caught in the earliest moments of the outbreak and begin following the investigation as it unfolds in real time. What starts as a suspected restaurant-associated illness quickly becomes a much stranger question: how could a prized edible mushroom, eaten for centuries, suddenly be linked to death?

    This is not a retrospective summary. It is the beginning of a poisoning mystery, told the way investigators experienced it: with urgency, uncertainty, and more questions than answers.

    Select references

    1. CDC Report on Bozeman Morel Mushroom Outbreak
    2. Rat Poison Contaminated synthetic cannabis
    3. E cigarette and vaping assosciated lung injury
    4. Enoki-Listeria outbreak
    5. Aconite outbreak in Canada mentioned in the introduction
    6. Arsenic Coffee Pot Poisoning in Maine
    7. Leongatha Mushroom Murders

    A Morel Dilemma

    Support the show

    Review the show where ever your listening

    Get Messages from Toxo (Join the Newsletter!)

    Join as a supporting member

    • Ad free episodes
    • Bonus content and early access
    • Discounts 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 show

    • Email: Toxtalk1@gmail.com

    More Show Resources

    • Ryan's Medical Games and Resources
    • Show Website


    Introducing: A Morel Dilemma Jun 01, 2026
    Show notes

    Available June 3rd- A deadly outbreak begins at a sushi restaurant in Bozeman, Montana. Diners develop rapid, severe gastrointestinal illness. Some collapse. Two people die. And the only clue pointing investigators toward a cause is also the hardest one to believe: morel mushrooms.

    A Morel Dilemma is a serialized outbreak investigation from The Poison Lab, following the story in real time as clinicians, toxicologists, public health officials, mycologists, and families try to answer one unsettling question:

    How could a prized edible mushroom suddenly be linked to death?

    This is a story about poisoning, public health, uncertainty, and the uncomfortable process of discovering that something we thought we understood may be far more complicated than it seemed.

    A Morel Dilemma

    Support the show

    Review the show where ever your listening

    Get Messages from Toxo (Join the Newsletter!)

    Join as a supporting member

    • Ad free episodes
    • Bonus content and early access
    • Discounts 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 show

    • Email: Toxtalk1@gmail.com

    More Show Resources

    • Ryan's Medical Games and Resources
    • Show Website


    Gas Station Heroin? Kratom, Regulation, and Recovery — A Co-Broadcast with the Kratom Sobriety Podcast May 27, 2026
    Show notes

    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 News

    This 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 effects
    • Kratom dependence, withdrawal, and recovery
    • How poison centers track emerging substances
    • Differences between state bans, consumer protection acts, and unregulated access
    • What poison center data can and cannot tell us
    • Why 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

    1. Free to read version of the study

    News articles about the study

    1. US Kratom Use Surges 65-Fold in 13 Years
    2. Calls to poison centers over 'natural' supplement have skyrocketed by 6,500% since 2010
    3. Kratom Use Soars in US, Alters Lives Dramatically | Mirage News
    4. Kratom use is surging in the US, with life-changing consequences, study reveals
    5. Kratom use is surging in the US, with life-changing consequences | EurekAlert!


    Outbreak: 75 Fatalities After a Funeral Poisoning in Mozambique May 07, 2026
    Show notes

    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 Covered

    • Mass poisoning investigation in rural Mozambique
    • Early reports of crocodile bile and suspected intentional poisoning
    • Clinical presentations including GI symptoms, seizures, pulmonary edema, liver injury, kidney injury, and multisystem disease
    • Challenges of interpreting sparse medical records during a mass casualty event
    • How toxicologists approach possible intentional poisoning
    • Why exposure history and timing matter in outbreak investigation
    • The importance of control samples in analytical testing
    • Lessons for clinicians, poison centers, and public health teams

    Guest

    Dr. Alaina Steck

    Medical toxicologist, Emory University

    Former medical toxicology fellow involved in the CDC-supported investigation of the Mozambique outbreak

    Resources (Spoilers)

    1. Outbreak paper
    2. U.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 Dilemma

    Support the show

    Review the show where ever your listening

    Get Messages from Toxo (Join the Newsletter!)

    Join as a supporting member

    • Ad free episodes
    • Bonus content and early access
    • Discounts 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 show

    • Email: Toxtalk1@gmail.com

    More Show Resources

    • Ryan's Medical Games and Resources
    • Show Website


    Rebroadcast: Phenibut. The emerging drug you don’t know about (yet) May 04, 2026
    Show notes

    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 therapies
    • THEORETICAL UNTESTED Phenibut withdrawal treatment schema (Not tested, not intended as treatment, intended to stimulate discussion and highlight key considerations in managing withdrawal)

    A Morel Dilemma

    Support the show

    Review the show where ever your listening

    Get Messages from Toxo (Join the Newsletter!)

    Join as a supporting member

    • Ad free episodes
    • Bonus content and early access
    • Discounts 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 show

    • Email: Toxtalk1@gmail.com

    More Show Resources

    • Ryan's Medical Games and Resources
    • Show Website


    If I had a Nickel (Mystery Case) & Toxicologist vs The internet (#13) with Dr. Damilola Idowu-Ellsworth Feb 11, 2026
    Show notes

    In this episode of The Poison Lab, host Ryan Feldman is joined by medical toxicologist Damilola Idowu‑Ellsworth for a fast-moving, case-heavy conversation packed with clinical pearls, listener participation, and classic toxicology weirdness.

    The show opens with listener guesses for the previously released mystery case before diving headfirst into a rapid-fire series of Stump the Toxicologist cases—questions pulled straight from the internet and real-world toxicology problem-solving. Along the way, Ryan and Dami cover everything from rodenticides and drug-testing myths to how to clean a benzodiazepine bottle, plus one of the most toxic substances you’ve probably never heard of.

    One lucky listener also wins a copy of Poisonous Fungus Amongus, and a shout-out to the newly released second edition featuring photography from expert mycologists.

    Skip the listener guesses and jump straight to the mystery toxin: 38:15

    Mystery toxin case

    The rest of the episode is Dr. Idowu and Ryan discuss the topics below. Looking for timestamps? Join the supporting member feed!

    • Looking for time stamps for the rest of the show? Join as a supporting member

    Stump the Toxicologist – Case Discussions

    (Looking for timestamps? Join the supporting member feed!)

    Case #1

    • A methemoglobinemia, renal failure inducing enema

    Case #2

    • Wide-complex dysrhythmia from an over-the-counter topical
    • Bonus - Paper from Ryan on the topical toxicity (or lack there of) of this product

    Case #3

    • Black stools, seizures, high sodium and low potassium after trying to beat a drug test.

    Case #4

    • GCS 15 and normal vitals… until they’re not — delayed seizures, neurologic collapse, and a toxicologic time bomb.
    • Paper from Ryan on this tricky toxic time bomb

    Internet & Listener Questions

    • Do GLP-1 agonists release toxins from fat and how might that impact drugged driving laws with THC?
    • Why do sedatives make you twitch?
    • Not all benzos are Xanax
    • What shape is a ketamine crystal

    A Morel Dilemma

    Support the show

    Review the show where ever your listening

    Get Messages from Toxo (Join the Newsletter!)

    Join as a supporting member

    • Ad free episodes
    • Bonus content and early access
    • Discounts 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 show

    • Email: Toxtalk1@gmail.com

    More Show Resources

    • Ryan's Medical Games and Resources
    • Show Website


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