Cannabis Related Emergencies

In this episode, Sam Ashoo, MD and T.R. Eckler, MD discuss the December 2025 Emergency Medicine Practice article, Diagnosis and Management of Cannabis-Related Emergencies

Episode Outline:

  • [0:00] Introduction
    • Welcome and show overview by Sam Ashoo
    • Mention of resources at ebmedicine.net
  • [0:46] Episode Start
    • Hosts introduce themselves: Sam Ashoo and Dr. T.R. Eckler
    • Dr. Eckler’s background and experience with cannabis cases in Colorado
  • [1:16] Topic Introduction
    • Focus on diagnosis and management of cannabis-related emergencies
    • Prevalence and importance in emergency medicine
  • [1:34] Legal Landscape
    • Overview of cannabis legality across states
    • Medicinal vs. non-medicinal use
  • [3:03] Increase in ED Visits
    • Statistics: ~1 million cannabis-related ED visits annually
    • Demographics: younger population most affected
  • [3:52] Synthetics and Challenges
    • Discussion of synthetic cannabinoids and their risks
    • Issues with detection and legality
  • [4:50] Clinical Spectrum
    • Range of presentations: from nausea/vomiting to psychosis and seizures
    • Impact on different age groups
  • [6:34] FDA-Approved Uses
    • Cannabis-derived products approved for specific medical conditions
  • [7:20] Physiology and Pathophysiology
    • Cannabinoid receptors (CB1 and CB2) and their effects
    • Differences between plant-derived and synthetic cannabinoids
  • [9:10] Chronic Use and Withdrawal
    • Downregulation of receptors, withdrawal symptoms, and persistent nausea
  • [10:20] Product Forms and Delivery Methods
    • Smoking, edibles, oils, tinctures, suppositories, topicals, etc.
    • Risks associated with concentrated forms (e.g., wax, oils)
  • [12:00] Clinical Effects by System
    • Psychiatric: anxiety, psychosis, paranoia
    • Cardiovascular: tachycardia, MI risk, QT prolongation
    • Pulmonary, renal, metabolic, dental, and ocular effects
  • [13:50] Cannabinoid Hyperemesis Syndrome (CHS)
    • Phases: prodrome, hyperemesis, recovery
    • Hot showers as a diagnostic clue
  • [16:00] Withdrawal Syndrome
    • Symptoms and timeline
    • Exacerbation with synthetic cannabinoids
  • [18:15] Counseling and Management
    • Importance of cessation and patient education
    • Timeline for symptom improvement
  • [18:42] Differential Diagnosis
    • Broad differential for persistent nausea/vomiting and abdominal pain
    • Importance of considering other causes
  • [20:55] Diagnostics and Testing
    • Limitations of drug screens (false positives/negatives)
    • Importance of EKG, labs, and imaging as indicated
  • [23:10] Treatment Approaches
    • First-line: benzodiazepines, antiemetics (ondansetron, metoclopramide)
    • Second-line: butyrophenones (haloperidol, droperidol), olanzapine
    • Capsaicin as adjunct therapy
  • [29:50] Complications and Special Considerations
    • Risks of undertreatment (e.g., Boerhaave syndrome, aspiration)
    • Pediatric and pregnant populations: unique risks and reporting requirements
  • [36:00] Five Practice-Changing Takeaways
    • Elicit cannabis use history
    • Know testing limitations
    • Consider ECG and appropriate labs
    • Use butyrophenones when indicated
    • Admit if symptoms are refractory
  • [39:00] Conclusion

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