The Tox Lab

The Tox Lab

The Tox Lab is a podcast dedicated to exploring the science of toxicology and its real-world implications. Each week we aim to break down complex research, investigate real-life cases, and discuss emerging trends in toxicology. Disclaimer: All opinions are our own. Find us on instagram: @the_tox_lab Email us here: thetoxlab@gmail.com

  1. 6D AGO

    Episode 77: Novel Synthetic Opioids – An Update on Emerging Trends

    This week on The Tox Lab, we’re back with a long-awaited update on novel synthetic opioids. We begin by discussing the April 2026 UNODC announcement on the increasingly varied forms in which synthetic opioids are being encountered, including vapes, powders, and counterfeit tablets marketed as benzodiazepines, oxycodone, and MDMA. We then turn to the emergence of orphine analogues in both the UK and the US, discussing recent reports and trends associated with these compounds. Finally, we examine a clinical case involving N-propionitrile chlorphine (cychlorphine), exploring the toxicological features and the challenges these emerging opioids present for clinicians, laboratories, and public health systems. Join us as we examine the changing landscape of novel synthetic opioids, consider what these developments may mean for toxicology, harm reduction, and public health, and discuss where the market may be heading next. Hope you enjoy! This episode is very kindly sponsored by Cayman Chemical. Check out their Synthetic Opioid Analytical Standards Panel here: https://www.caymanchem.com/product/44436/synthetic-opioid-analytical-standards-panel-1 Links to papers we discussed: https://www.unodc.org/LSS/Announcement/Details/973e194e-f8d6-4b4e-8aca-166aaec4ac7c https://www.polizei.bayern.de/aktuelles/pressemitteilungen/100413/index.html https://onlinelibrary.wiley.com/doi/10.1111/dar.70081 https://assets.publishing.service.gov.uk/media/69f3343fab602a88957eef2b/Seventh_addendum_to_the_ACMD_report_on_the_use_and_harms_of_2-benzyl-benzimidazole__nitazene__and_piperidine_benzimidazolone__brorphine-like__opioids_FINAL.pdf https://www.cfsre.org/nps-discovery/public-alerts/increase-in-fatal-overdoses-linked-to-novel-synthetic-opioid-n-propionitrile-chlorphine-cychlorphine https://www.tandfonline.com/doi/full/10.1080/15563650.2025.2594070 Link to our paper on N-pyrrolidino Isotonitazene: https://academic.oup.com/jat/advance-article-abstract/doi/10.1093/jat/bkag027/8663758?redirectedFrom=fulltext Disclaimer: All opinions are our own. Find us on instagram: @the_tox_lab Email us here: thetoxlab@gmail.com Support us here: https://buymeacoffee.com/thetoxlab

    21 min
  2. APR 27

    Episode 75: Kratom Is Changing - New Semi-Synthetic Compounds & Rising Harm

    A year after we first took a look at mitragynine (kratom), we are back with an update episode looking at how the landscape surrounding mitragynine is evolving. We begin by examining poison centre data, exploring trends in reported exposures in the US and internationally, and the increase in its use. We then discuss a case involving semi-synthetic mitragynine derivatives, including 7-hydroxymitragynine and mitragynine pseudoindoxyl, highlighting the clinical features including dose escalation, and challenges associated with withdrawal. Finally, we turn to reports of combined use of kratom and kava, and consider how this may influence toxicity and withdrawal. Join us as we examine emerging data, evolving patterns of use, and the clinical implications of mitragynine and its derivatives, and consider what these findings mean for toxicology and public health. Hope you enjoy! If you'd like us to cover an episode on Kava, please let us know in the comments! Links to the papers we discussed: https://www.cdc.gov/mmwr/volumes/75/wr/mm7511a1.htm https://www.cureus.com/articles/467977-severe-early-onset-withdrawal-following-intentional-use-of-mitragynine-pseudoindoxyl-a-case-report-and-emerging-clinical-considerations#!/ https://www.cdc.gov/mmwr/volumes/75/wr/pdfs/mm7512a1-H.pdf https://journals.lww.com/journaladdictionmedicine/abstract/9900/kava_potentiated_withdrawal_in_persons_using.687.aspx Disclaimer: All opinions are our own. Find us on instagram: @the_tox_lab Email us here: thetoxlab@gmail.com Support us here: https://buymeacoffee.com/thetoxlab

    26 min
  3. APR 20

    Episode 74: Codeine – Pharmacogenetics, Breastfeeding and the 2006 Lancet Case

    This week on The Tox Lab, we’re examining the controversial 2006 Lancet paper on codeine and fatal opioid toxicity in a breastfed infant. We begin by introducing the paper and the case at its centre, in which an infant developed fatal opioid toxicity following exposure to codeine via breast milk. We then explore the proposed mechanism, focusing on the role of CYP2D6 metabolism and how variability in this pathway may lead to higher-than-expected morphine concentrations. We also discuss the limitations and criticisms of the paper, including questions around causality, alternative explanations, and the extent to which pharmacogenetics alone can account for the outcome. Finally, we consider the wider impact of this publication, including changes to clinical guidance, prescribing practices, and the ongoing debate around codeine use in breastfeeding individuals. Join us as we examine the pharmacology, pharmacogenetics, and controversy surrounding this landmark case, and consider what this means for clinical toxicology and patient safety. Hope you enjoy! Links to the papers we discussed: https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(06)69255-6/abstract https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(26)00245-X/fulltext https://www.thelancet.com/journals/lancet/article/PIIS0140673608612544/abstract https://ascpt.onlinelibrary.wiley.com/doi/10.1002/cpt.1882 Link to the New Yorker Article : https://www.newyorker.com/magazine/2026/02/02/did-a-celebrated-researcher-obscure-a-fatal-poisoning Disclaimer: All opinions are our own. Find us on instagram: @the_tox_lab Email us here: thetoxlab@gmail.com Support us here: https://buymeacoffee.com/thetoxlab

    18 min

Ratings & Reviews

5
out of 5
2 Ratings

About

The Tox Lab is a podcast dedicated to exploring the science of toxicology and its real-world implications. Each week we aim to break down complex research, investigate real-life cases, and discuss emerging trends in toxicology. Disclaimer: All opinions are our own. Find us on instagram: @the_tox_lab Email us here: thetoxlab@gmail.com

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