🚑 First Responder Guide to Psychedelic Emergencies

Evidence-Based Protocols for EMS, Law Enforcement, and Emergency Department Staff

📋 Target Audience

This guide is specifically designed for:

  • Emergency Medical Services: EMTs, Paramedics, Emergency Medical Responders
  • Emergency Department Staff: Physicians, Nurses, Physician Assistants, Technicians
  • Law Enforcement: Police Officers, Sheriff Deputies, Campus Security
  • Fire Department: Firefighters responding to medical calls
  • Event Medical Staff: Festival medics, concert venue medical teams
  • Crisis Response Teams: Mobile crisis units, psychiatric emergency teams

⚡ Quick Reference: Psilocybin Emergency Essentials

Parameter Key Information
Common Names Psilocybin mushrooms, magic mushrooms, shrooms, psychedelic mushrooms
Active Compounds Psilocybin (pro-drug) → Psilocin (active metabolite). Both are 5-HT2A receptor agonists
Onset Time 20-60 minutes oral ingestion; effects peak at 90-120 minutes
Duration Total 4-8 hours; most acute effects 3-4 hours; residual effects up to 8 hours
Typical Dose Range Threshold: 0.25g | Low: 0.5-1g | Moderate: 1-2.5g | High: 2.5-5g | Heroic: 5g+
Physical Risk Very low toxicity; LD50 extraordinarily high (no documented fatal overdoses from psilocybin alone)
Primary Concerns Psychological distress, behavioral risks (falls, wandering), cardiovascular effects in vulnerable patients
Life-Threatening Risks Rare: serotonin syndrome (with MAOI/SSRI), severe hypertensive crisis (pre-existing CV disease), trauma from impaired behavior

📞 Dispatch & Initial Response

Common Dispatch Descriptions

Calls involving psilocybin may be described as:

  • "Person having bad reaction to mushrooms" - most direct description
  • "Psychiatric emergency" - caller focusing on psychological symptoms
  • "Drug overdose" - technically inaccurate but common caller perception
  • "Person acting strangely/erratically" - behavioral focus
  • "Panic attack" - anxiety-focused description
  • "Seizure-like activity" - may be misperception of intense physical experience
  • "Unconscious person" - rare, but suggests poly-substance use or other emergency

Scene Size-Up & Safety Assessment

Environmental Assessment

  • Scene Safety: Psilocybin-affected individuals typically non-violent, but may be unpredictable. Assess for weapons, hazards, other persons on scene.
  • Multiple Patients: Commonly used in groups. Ask: "Did anyone else take mushrooms?" May have multiple patients at various stages.
  • Substance Evidence: Look for: dried mushrooms, tea preparations, chocolate bars (edibles), empty bags. Photograph if permitted (helps with identification).
  • Polypharmacy Clues: Presence of alcohol, cannabis, other drugs significantly changes clinical picture. Note all substances visible.

Initial Patient Contact

✅ Effective Communication Strategies

  • Calm, Slow Speech: Speak in calm, measured tone. Avoid sudden movements or loud voices.
  • Identify Yourself Clearly: "I'm [Name], a paramedic. I'm here to help you. You're safe."
  • Ask Permission: "Is it okay if I check your pulse?" or "Can I sit near you?" Respects autonomy, reduces anxiety.
  • Reality Orientation: Gently remind: "You took mushrooms. What you're experiencing is temporary. You will return to normal."
  • Avoid Judgment: Never: "Why did you take these?" or "You shouldn't have done this." Focus on medical needs only.
  • Enlist Sober Friends: If present, ask sober companions to help calm patient: "Can you hold their hand and remind them they're safe?"

⚠️ What NOT to Do

  • ❌ Don't use restraints unless absolutely necessary - worsens psychological distress
  • ❌ Don't separate patient from trusted friends without reason - increases anxiety
  • ❌ Don't dismiss their experience - what they're feeling is very real to them
  • ❌ Don't lecture or moralize - not the time or place, damages trust
  • ❌ Don't assume intoxication means unreliable - many can provide accurate history

🩺 Patient Assessment & Vital Signs

Expected Vital Sign Changes with Psilocybin

Parameter Expected Effect Concerning Threshold
Heart Rate Mild tachycardia (80-110 bpm) common, especially during peak >130 bpm sustained or irregular rhythm
Blood Pressure Mild elevation (10-20 mmHg increase) typical during peak SBP >180 or DBP >110, especially with symptoms
Respiratory Rate Usually normal (12-20); may be slightly elevated with anxiety <10 or >30, labored breathing, poor oxygenation
Temperature Usually normal to slightly elevated (98-99.5°F/36.7-37.5°C) >101°F (38.3°C) suggests other pathology
Oxygen Saturation Should remain normal (>94%) <94% - investigate cause unrelated to psilocybin
Pupil Size Mydriasis (dilated pupils) is hallmark - often 6-8mm Pinpoint or unequal pupils suggest other drugs/pathology

Focused History Taking

Essential Questions (SAMPLE Format Adapted)

S - Symptoms/Substance Information

  • "What did you take?" (Confirm mushrooms vs. other substances)
  • "How much did you take?" (Estimate in grams if possible, or number of mushrooms)
  • "What time did you take them?" (Calculate time from ingestion)
  • "How did you take them?" (Eaten whole, tea, chocolate, powder?)
  • "Have you taken mushrooms before?" (First-time users often more anxious)
  • "What are you feeling right now?" (Let them describe in their words)

A - Allergies & Other Substances

  • "Do you have any allergies to medications?"
  • "Did you take anything else today?" (Alcohol, cannabis, MDMA, cocaine, prescription meds)
  • "Are you on any psychiatric medications?" (SSRIs, MAOIs, antipsychotics - critical interactions)

M - Medications & Medical History

  • "What medications do you take regularly?"
  • "Do you have any heart problems?" (MI, arrhythmias, uncontrolled HTN)
  • "Any history of seizures?"
  • "Any psychiatric history?" (Schizophrenia, bipolar, severe anxiety)
  • "Are you pregnant?" (If applicable)

P - Past Medical History & L - Last Oral Intake

  • "Have you had medical emergencies with drugs before?"
  • "When did you last eat or drink?" (Empty stomach = faster onset, more intense)

E - Events Leading to Call

  • "What happened that made someone call 911?"
  • "Have you been injured?" (Falls, head trauma common with disorientation)
  • "Where are you in the experience - beginning, middle, or coming down?"

📝 Documentation Tips

  • Be Specific: Document exact substance ("psilocybin mushrooms"), estimated dose ("patient states 3 grams"), timing ("ingested approximately 2 hours prior to EMS arrival")
  • Quote Patient: Use direct quotes for subjective symptoms - "Patient states 'I feel like I'm dying but I know I'm not'"
  • Objective Findings: Vital signs with time stamps, pupil size (mm), behavior observations
  • Third Party Info: Document information from friends/family: "Per friend on scene, patient ingested mushrooms at approximately 1800 hours"
  • Absence of Findings: Note negative findings: "No evidence of trauma, no difficulty breathing, lungs clear bilaterally"

🔍 Differential Diagnosis

🚨 Life-Threatening Conditions to Rule Out

Never assume all symptoms are purely from psilocybin. Always consider:

Serotonin Syndrome

Risk Factors: Concurrent SSRI, MAOI, MDMA, cocaine, or multiple serotonergic drugs

Classic Triad:

  • Altered mental status (confusion, agitation)
  • Autonomic hyperactivity (diaphoresis, tachycardia, hyperthermia)
  • Neuromuscular abnormalities (tremor, rigidity, hyperreflexia, clonus)

Key Differentiator: Temperature >102°F (38.9°C), severe muscle rigidity, sustained clonus

Treatment: Immediate transport, benzodiazepines, cooling, consider cyproheptadine

Anticholinergic Toxidrome

Risk: Patient may have misidentified toxic mushroom species (Amanita muscaria)

Classic Presentation: "Hot as a hare, blind as a bat, dry as a bone, red as a beet, mad as a hatter"

  • Hyperthermia
  • Mydriasis (dilated pupils) - similar to psilocybin
  • Dry mucous membranes
  • Flushed skin
  • Altered mental status, hallucinations
  • Urinary retention

Key Differentiator: DRY skin and mucous membranes (psilocybin users typically have normal secretions)

Sympathomimetic Toxidrome

Consider if: Patient may have taken cocaine, methamphetamine, or other stimulants alongside mushrooms

Presentation:

  • Severe hypertension and tachycardia
  • Hyperthermia
  • Diaphoresis
  • Agitation, paranoia
  • Seizures possible

Key Differentiator: Significantly elevated vital signs (BP >180/110, HR >140), severe agitation

Head Injury/Intracranial Bleed

Risk: Falls common during disorientation; impaired judgment leads to risky behavior

Red Flags:

  • History of fall or head impact
  • Progressive confusion (worsening, not stable)
  • Severe headache (different from typical psychedelic headache)
  • Vomiting (especially projectile or persistent)
  • Unequal pupils
  • Focal neurological deficits

Action: CT head, neuro checks, hospital transport

Acute Psychosis (Not Drug-Induced)

Consider if: Patient has no clear substance exposure or symptoms began before drug use

Differentiators:

  • Symptoms persist beyond expected drug duration (>8-10 hours)
  • Patient denies substance use but others confirm none taken
  • Systematic delusions (vs. fluid psychedelic experience)
  • History of psychiatric illness with similar episodes

Management: Psychiatric evaluation, possible antipsychotic, inpatient psych

Cardiac Emergency

Risk: Mild cardiovascular effects of psilocybin can unmask underlying cardiac disease

Do NOT Attribute to Mushrooms:

  • Chest pain/pressure (especially substernal, radiating)
  • Severe dyspnea
  • Diaphoresis out of proportion to anxiety
  • Syncope or near-syncope

Action: ECG, cardiac biomarkers, treat as ACS until proven otherwise

⚠️ The "Psychedelic Masking Effect"

Critical Concept: Patients under influence of psychedelics may not accurately perceive or report physical symptoms. Someone having an MI might attribute chest pain to "anxiety from the trip." Someone with head injury might not realize severity due to altered consciousness.

Clinical Pearl: Trust objective findings over subjective reports. If vital signs, physical exam, or mechanism of injury suggests serious pathology, investigate thoroughly regardless of patient's substance use.

💊 Treatment Protocols

Psychological Support vs. Medical Intervention

Most psilocybin-related EMS calls require supportive care, not aggressive medical intervention. The decision tree:

  1. Scene Safety & ABCs: Ensure scene safe, assess airway, breathing, circulation. If ABCs compromised, treat immediately per standard protocols.
  2. Vital Signs Assessment: Obtain full set of vitals. If within expected ranges (see table above), proceed to supportive care. If abnormal, treat specific findings.
  3. Rule Out Life-Threatening Differentials: Use clinical judgment and findings to exclude serious pathology (serotonin syndrome, head injury, cardiac event, etc.)
  4. Psychological Support as First-Line: For isolated anxiety/panic without medical concerns, provide calm environment, reassurance, grounding techniques before considering medications.
  5. Pharmacological Intervention if Needed: If supportive care insufficient or medical indication present (see below).
  6. Transport Decision: Based on medical necessity, not simply substance use. Many patients can be managed on-scene or refuse transport after stabilization.

Supportive Care Interventions

✅ Non-Pharmacological Interventions (Try First)

Environmental Modification
  • Reduce Stimulation: Dim lights in ambulance, turn off unnecessary equipment beeping, minimize radio chatter
  • Temperature Comfort: Adjust blankets - patient may feel very hot or very cold
  • Safe Space: If on-scene, move to quiet area away from crowds, noise, flashing lights
  • Allow Positioning: Let patient sit/lie in position of comfort (not just supine unless medically indicated)
Verbal De-escalation & Reassurance
  • Reality Orientation: "You took mushrooms about [X] hours ago. The effects usually last 4-6 hours. You're experiencing the peak right now, which is the most intense part."
  • Normalize Experience: "What you're feeling is a normal reaction to psilocybin. Many people experience this."
  • Temporary Nature: "This is temporary. You will return to your normal state. The feeling will pass."
  • Safety Reassurance: "You're physically safe. Your body is okay. What you're experiencing is in your mind, and it will pass."
  • Breathing Guidance: "Let's breathe together. In through your nose for 4 counts, hold for 4, out through your mouth for 4."
Physical Comfort Measures
  • Allow Trusted Companion: If friend/partner present and sober, allow them to accompany patient (in ambulance if possible)
  • Soft Tactile Input: Offer blanket, allow hand-holding with companion if patient wants
  • Hydration: Offer water in small sips (patient may be dehydrated or have dry mouth)
  • Music: If patient requests, soft music can help (their own headphones if available)

Pharmacological Interventions

Indications for Medication

  • Severe anxiety/panic not responding to supportive measures after 15-20 minutes
  • Agitation posing safety risk to patient or crew
  • Cardiovascular instability: Sustained tachycardia (HR >130) or hypertension (BP >180/110) with symptoms
  • Seizure activity
  • Medical necessity for procedures (IV access, transport, etc.) in extremely agitated patient
Medication Indication Dose Notes
Benzodiazepines (Lorazepam, Diazepam, Midazolam) First-line for severe anxiety, agitation, cardiovascular effects Lorazepam: 1-2mg IV/IM/SL
Diazepam: 5-10mg IV/PO
Midazolam: 2-5mg IV/IM 		• Safe, effective for psychedelic-related anxiety
• Reduces intensity without complete termination
• Monitor for respiratory depression
• Can repeat dose if needed
Antiemetics (Ondansetron) Nausea/vomiting Ondansetron: 4-8mg IV/ODT • Safe, no sedation
• Avoid metoclopramide (can worsen anxiety)
• Nausea often self-limited after 1-2 hours
Antipsychotics (Haloperidol, Olanzapine) Severe agitation unresponsive to benzos; suspected psychosis Haloperidol: 5mg IM
Olanzapine: 10mg IM 		• Use cautiously - can worsen experience
• Reserve for true psychiatric emergency
• Benzodiazepines preferred first-line
• Monitor for dystonic reactions
IV Fluids (NS or LR) Dehydration, heat-related illness, facilitate medication administration Standard fluid resuscitation protocols • Many patients mildly dehydrated
• Helpful for orthostatic symptoms
• Consider if prolonged vomiting

🚨 Medication Contraindications & Cautions

  • Avoid Antipsychotics as First-Line: Can intensify negative experience; benzodiazepines safer and more effective
  • Narcan NOT Indicated: Psilocybin is not an opioid. Narcan will not help and wastes resources. (Exception: if poly-substance including opioids)
  • Avoid Multiple Benzos: Stick to one agent; combining increases respiratory depression risk
  • SSRIs Not Acute Treatment: Patient may be on SSRIs chronically, but don't administer acutely - takes weeks to work

Specific Clinical Scenarios & Management

Scenario 1: "Bad Trip" - Severe Anxiety/Panic

Presentation: Patient extremely anxious, may be crying, hyperventilating, expressing fear of death or losing sanity. Vitals show tachycardia (100-120 bpm), elevated BP (140-160/90-100), but no other concerning findings.

Management:

  1. Scene safety - ensure patient cannot flee or injure self
  2. Calm, reassuring approach - introduce yourself, explain you're there to help
  3. Allow trusted friend to stay with patient if present
  4. Verbal reassurance: "You took mushrooms. This feeling is temporary. You're safe. You will return to normal."
  5. Breathing exercises - guide slow, deep breathing
  6. Reduce stimulation - dim lights, quiet environment
  7. Obtain vital signs without causing more distress (explain each step)
  8. If no improvement after 15-20 minutes: consider lorazepam 1-2mg IV/IM
  9. Transport decision: if stabilized with supportive care, patient may refuse transport (if capacity intact)

Transport: Not always necessary if patient stabilizes, has competent adult supervision, and demonstrates decision-making capacity.

Scenario 2: Agitated/Combative Patient

Presentation: Patient is confused, agitated, possibly trying to leave scene or remove clothing, not responding appropriately to questions. May be combative with attempts to assess.

Management:

  1. Scene safety first - adequate personnel, consider police assistance for safety only (not criminal)
  2. Attempt verbal de-escalation - calm voice, non-threatening posture, give space
  3. Enlist help of friends/family to calm patient
  4. Rule out medical causes: check glucose, temperature, assess for head injury
  5. If patient poses imminent danger and de-escalation fails: chemical sedation
    • Midazolam 5mg IM (faster onset than lorazepam)
    • Alternative: Lorazepam 2mg IM + Haloperidol 5mg IM if severe
  6. Physical restraints only if absolutely necessary for safety - use soft restraints, document medical necessity
  7. Continuous monitoring post-sedation - risk of respiratory depression
  8. Transport to ED for medical clearance and psychiatric evaluation

Documentation Critical: Clearly document behaviors requiring restraint/sedation, medical necessity, attempts at de-escalation, medications given with times.

Scenario 3: Possible Serotonin Syndrome

Presentation: Patient took mushrooms while on SSRI or MAOI. Now presenting with confusion, significant diaphoresis, temperature 102.5°F, HR 135, BP 165/105, tremor, muscle rigidity, hyperreflexia.

Management:

  1. Recognize as medical emergency - requires immediate transport
  2. Obtain full vital signs including temperature
  3. IV access - begin fluid resuscitation
  4. Benzodiazepines for agitation and autonomic symptoms: Lorazepam 2mg IV or Diazepam 10mg IV (may need to repeat)
  5. Cooling measures if hyperthermic: remove excess clothing, cool packs to groin/axilla, set ambient temperature cool
  6. Continuous cardiac monitoring - watch for arrhythmias
  7. Alert receiving facility: "Possible serotonin syndrome from psilocybin + SSRI interaction"
  8. Rapid transport - patient may need ICU-level care, possible intubation if severe

Hospital May Administer: Cyproheptadine (serotonin antagonist), aggressive cooling, sedation/intubation if severe.

Scenario 4: Trauma During Psychedelic Experience

Presentation: Patient fell from height, was in motor vehicle accident, or sustained injury while under influence. Now has obvious trauma (laceration, fracture) but also altered mental status from mushrooms.

Management:

  1. Treat trauma per standard protocols - don't let substance use distract from serious injury
  2. Spinal precautions if indicated by mechanism
  3. Control bleeding, splint fractures, manage injuries
  4. Assess for head injury - CT scan likely needed due to altered mental status (can't differentiate drug from TBI)
  5. Be aware patient may not accurately report pain - assess objectively
  6. If pain management needed: opioids can be used (fentanyl, morphine per protocol). Psilocybin doesn't contraindicate
  7. Consider benzodiazepine to reduce anxiety during painful procedures
  8. Trauma center transport if appropriate - inform receiving hospital of substance use

Key Point: Substance use does not change trauma protocols. Treat injuries appropriately. Mental status exam cannot be reliably assessed until drug effects subside.

🚑 Transport Decisions & Refusals

When Transport is Medically Necessary

Mandatory Transport Situations

  • Altered mental status with concern for organic pathology (head injury, stroke, metabolic emergency)
  • Abnormal vital signs requiring medical evaluation (sustained hypertension, tachycardia, fever)
  • Chest pain or cardiac symptoms
  • Any trauma requiring medical evaluation
  • Seizure activity
  • Signs of serotonin syndrome
  • Suicidal ideation with plan or intent
  • Psychotic symptoms with safety concerns
  • Patient requesting transport for reassurance

When Refusal May Be Appropriate

Criteria for Accepting Refusal

  • Patient stabilized with supportive care or minimal intervention
  • Vital signs within acceptable range or normalized
  • Patient demonstrates decision-making capacity (see below)
  • Responsible, sober adult available to supervise patient
  • Safe environment for patient to remain in
  • Patient understands risks of refusal and agrees to seek help if symptoms worsen
  • No medical or psychiatric red flags

Assessing Decision-Making Capacity

Critical Question: Does this patient have capacity to refuse transport?

Four Components of Capacity:

  1. Understanding: Can patient understand their situation and what you're recommending?
    • Test: "Can you tell me in your own words what happened and why we're here?"
  2. Appreciation: Does patient appreciate how this situation applies to them personally?
    • Test: "Do you understand that you're having a reaction to mushrooms and that we want to take you to the hospital to make sure you're okay?"
  3. Reasoning: Can patient compare options and their consequences?
    • Test: "Can you tell me the risks of going to the hospital versus staying here?"
  4. Choice: Can patient express a clear, consistent choice?
    • Test: Patient states preference and maintains it when re-asked

⚠️ Important: Substance Use ≠ Automatic Lack of Capacity

Many patients under influence of psychedelics retain decision-making capacity, especially if past the peak and stabilized. Focus on functional assessment, not simply presence of intoxication.

Document Thoroughly: If accepting refusal from intoxicated patient, document: patient's responses to capacity questions, vital signs, interventions provided, presence of sober supervisor, and patient's understanding of risks.

Refusal Documentation

Essential Elements:

  • Patient's exact statement of refusal (quote)
  • Capacity assessment findings (responses to questions)
  • Risks explained to patient (document what you told them)
  • Patient's understanding of those risks ("Patient verbalizes understanding that symptoms could worsen and require emergency care")
  • Presence of responsible adult supervisor (name, relationship, contact information)
  • Instructions given: "Patient advised to call 911 if symptoms worsen, including chest pain, difficulty breathing, worsening confusion, or inability to wake"
  • Vital signs at time of refusal
  • Signature on refusal form (if patient willing and able)
Safety Net: Provide written instructions to supervisor: "Call 911 immediately if patient develops: chest pain, difficulty breathing, seizures, worsening confusion, inability to wake, suicidal statements, or if you become concerned about their safety."

👮 Guidance for Law Enforcement

Medical Emergency, Not Criminal Matter

When called to a psychedelic-related medical emergency, law enforcement's primary role is ensuring scene safety and facilitating medical care. Criminal charges for personal use amounts during medical emergencies are counterproductive to public health.

Law Enforcement Best Practices

Scene Safety & Support Role

  • Medical Priority: Person's health takes precedence over any potential charges. Allow EMS to provide care without interference.
  • Non-Threatening Presence: Uniform and presence can increase anxiety in psychedelic-affected individuals. Stand back, allow EMS to take lead.
  • De-escalation Focus: Use calm communication. Avoid aggressive posture, loud commands, or physical contact unless safety requires it.
  • Protect Medical Personnel: If patient is agitated or scene is unsafe, your role is to ensure EMS can work safely.
  • Crowd Control: Keep bystanders at distance to give patient privacy and reduce stimulation.

✅ Good Samaritan Considerations

Many jurisdictions have Good Samaritan laws protecting individuals who call for help during overdoses. While these laws vary, the spirit is universal: we want people to seek medical help without fear of arrest.

Recommended Approach:

  • Focus on medical emergency, not criminal investigation
  • Avoid searching person or premises for drugs during medical crisis (unless safety concern)
  • Do not interrogate patient or companions during medical emergency
  • Small personal-use amounts of psilocybin typically not worth pursuing while person needs medical help
  • Consider whether arrest serves public interest when person sought help for medical emergency

Long-term Impact: If people fear arrest, they won't call 911 during genuine emergencies, leading to preventable deaths. Public health > minor possession charges.

⚠️ When Law Enforcement Action May Be Needed

  • Violence: Patient is violent toward others and safety of EMS/public at risk
  • Major Crimes: Situation involves other serious crimes (distribution, assault, etc.) beyond personal drug use
  • Public Safety: Patient attempting to drive, operate machinery, or engage in dangerous activity
  • Property Damage: Significant destruction of property occurring
  • Involuntary Commitment: Patient meets criteria for psychiatric hold and refuses necessary treatment

Even in these situations: Medical treatment remains priority. Arrest can wait until person is medically cleared if situation allows.

Special Circumstances

Festival/Event Settings

  • Work collaboratively with event medical staff and harm reduction organizations
  • Recognize medical tents (Zendo Project, DanceSafe) are providing valuable public health service
  • Focus enforcement on trafficking/distribution, not personal possession in medical context
  • Consider whether arrest at festival creates more danger (person fleeing, hiding medical needs) than it prevents

University/College Settings

  • Students often delay seeking help due to fear of disciplinary action - this costs lives
  • Work with university health services to ensure students know they can seek help
  • Consider educational approach over punitive for first-time personal use situations
  • Focus on distribution, not possession by person having medical emergency

🏥 Emergency Department Management

ED Triage & Initial Assessment

Triage Acuity

  • ESI Level 1 (Resuscitation): Requires immediate life-saving intervention
    • Examples: Unresponsive, seizure, severe respiratory distress, cardiovascular instability
  • ESI Level 2 (Emergent): High-risk or severe distress
    • Examples: Severe agitation requiring restraint, suspected serotonin syndrome, head injury with altered mental status, chest pain
  • ESI Level 3 (Urgent): Stable but requires multiple resources
    • Examples: Moderate anxiety/"bad trip" requiring observation and monitoring, mild vital sign abnormalities
  • ESI Level 4-5 (Less Urgent/Non-Urgent): Rare for psychedelic presentations
    • Examples: Essentially recovered, presenting for reassurance only

ED Workup

Basic Workup (Most Presentations)

Labs:
  • Basic Metabolic Panel (BMP) - assess electrolytes, renal function, glucose
  • Complete Blood Count (CBC) - if infection concern
  • Creatine Kinase (CK) - if suspected rhabdomyolysis from agitation/hyperthermia
  • Urinalysis - assess hydration, rule out infection
  • Pregnancy test - if applicable
  • Urine drug screen - typically shows false negative for psilocybin (not routinely tested), but identifies co-ingestants
Imaging:
  • Generally not needed for isolated psychedelic ingestion without trauma or focal findings
Monitoring:
  • Continuous cardiac monitoring if arrhythmia concern
  • Vital signs every 30-60 minutes
  • Serial neurological assessments

Extended Workup (Red Flags Present)

If Cardiovascular Concerns:
  • ECG (12-lead)
  • Troponin (if chest pain or concerning ECG)
  • Consider cardiology consult if abnormalities
If Head Injury or Concerning Neuro Exam:
  • CT Head non-contrast
  • Consider neurology/neurosurgery consult if positive findings
If Suspected Serotonin Syndrome:
  • CK, AST, ALT (liver function)
  • Coagulation studies if severe
  • Continuous monitoring, ICU if severe
If Psychiatric Emergency:
  • Full medical clearance first (labs, imaging as indicated)
  • Psychiatric consultation
  • Safety assessment (suicide risk)

ED Treatment Approach

"The Psychedelic Safe Space"

Ideal ED management mimics therapeutic psychedelic setting principles:

  • Quiet Room: Place patient in private room with minimal stimulation (not hallway, not multi-person bay)
  • Dim Lighting: Lower lights - bright fluorescents worsen experience
  • Minimal Interruptions: Cluster care activities rather than frequent disturbances
  • Calm Presence: Staff should be calm, reassuring, non-judgmental
  • Allow Support Person: If patient has sober, trusted companion, allow them to stay
  • Comfortable Positioning: Let patient sit/lie as comfortable (not just supine unless medically necessary)
  • Time and Space: Often, patient simply needs safe place to wait out the experience (3-6 hours from ED arrival)

Medication Management in ED

Situation First-Line Treatment Alternative/Additional
Anxiety/"Bad Trip" Supportive care, quiet environment

If needed: Lorazepam 1-2mg PO/IV		 Diazepam 5-10mg PO

Can repeat q1-2h if needed
Severe Agitation Lorazepam 2mg IV/IM

May combine with Haloperidol 5mg IM if inadequate response		 Olanzapine 10mg IM

Ziprasidone 10-20mg IM
Nausea/Vomiting Ondansetron 4-8mg IV/PO Prochlorperazine 10mg IV (caution: can worsen anxiety)
Hypertension Usually benzodiazepines sufficient (reduce sympathetic tone)

Lorazepam 2mg IV		 If severe/symptomatic despite benzos: Short-acting antihypertensive (labetalol, hydralazine) per cardiology consult
Tachycardia Typically resolves with anxiety reduction

Benzodiazepines first-line		 If persistent and symptomatic: Beta-blocker (metoprolol 5mg IV) after cardiology consult
Suspected Serotonin Syndrome Benzodiazepines (lorazepam 2-4mg IV)

Aggressive cooling

IV fluids

Cyproheptadine 12mg PO initial, then 2mg q2h (max 32mg/day)		 ICU admission if severe

Intubation/sedation if refractory

Discontinue all serotonergic agents

Disposition Decisions

Discharge Home - Appropriate When:
  • Patient has returned to baseline mental status (or close to it)
  • Vital signs normalized
  • No concerning medical findings
  • No suicidal ideation or psychotic symptoms
  • Responsible adult to accompany and supervise
  • Patient understands discharge instructions and return precautions
  • Follow-up arranged if needed (primary care, psych, cardiology as applicable)
Observation Unit - Consider When:
  • Patient improving but not yet at baseline (needs more time)
  • Mild/moderate persistent symptoms requiring monitoring
  • Awaiting final lab results or serial cardiac markers
  • Late presentation (closer to end of expected duration, likely will resolve within 12-24 hours)
Inpatient Admission - Indicated For:
  • Medical complications: serotonin syndrome, rhabdomyolysis, cardiac arrhythmia, significant injury
  • Persistent symptoms beyond expected duration (>10-12 hours) suggesting other pathology
  • Need for continued IV medications or close monitoring
Psychiatric Admission - Indicated For:
  • Persistent psychosis after medical clearance (symptoms lasting >24 hours post-ingestion)
  • Suicidal ideation with intent/plan
  • Inability to care for self and no support system
  • Grave disability (unable to meet basic needs)

⚠️ Discharge Instructions

Provide Clear, Written Instructions:

  • Rest: No work, school, or major obligations for 24 hours. Need sleep and recovery time.
  • Supervision: Should not be alone for 24 hours. Responsible adult should check on patient regularly.
  • No Driving: Do not drive for at least 24 hours or until fully back to baseline.
  • No Substances: Avoid alcohol, cannabis, or other drugs for at least 1 week.
  • Hydration: Drink fluids, eat light foods as tolerated.
  • Return If: Chest pain, difficulty breathing, worsening confusion, seizures, suicidal thoughts, or any concerning symptoms.
  • Follow-up: See primary care doctor within 1 week. If psychiatric symptoms, follow up with mental health provider.
  • Resources: Provide harm reduction resources, crisis hotlines (Fireside Project, National Suicide Prevention Lifeline)

📚 Education & Training Resources

Continuing Education on Psychedelic Emergencies

As psychedelic medicine expands and decriminalization spreads, first responders will encounter these situations more frequently. Education is essential.

Recommended Training Topics:

  • Psychedelic Pharmacology Basics: Understanding how psilocybin, LSD, mescaline, and DMT work
  • Distinguishing Psychedelic Emergency from Other Toxidromes: Differential diagnosis skills
  • De-escalation Techniques: Specific approaches for psychedelic-affected individuals
  • Medical Management Protocols: Evidence-based treatments, what works and what doesn't
  • Legal and Ethical Considerations: Good Samaritan laws, patient rights, harm reduction principles
  • Cultural Competency: Understanding ceremonial/therapeutic use, respecting diverse approaches

Training Resources:

  • Multidisciplinary Association for Psychedelic Studies (MAPS): Offers training programs for healthcare providers
  • Fireside Project: Provides training for peer support and crisis intervention
  • Zendo Project: Psychedelic peer support training (annual training programs)
  • DanceSafe: Harm reduction training for event staff and first responders
  • American College of Emergency Physicians (ACEP): Toxicology modules including psychedelics
  • National Association of EMS Physicians (NAEMSP): EMS-specific continuing education

Emerging Evidence & Research

The landscape of psychedelic medicine is rapidly evolving. Key developments:

  • FDA Breakthrough Therapy Designation: Psilocybin for treatment-resistant depression, PTSD
  • Clinical Trials: Ongoing studies at Johns Hopkins, NYU, UCSF, Imperial College London
  • Decriminalization Movements: Denver, Oakland, Santa Cruz, Oregon, and others have decriminalized psilocybin
  • Legalization: Oregon Measure 109 establishes regulated psilocybin therapy program (first in nation)
  • Safety Profile: Accumulating evidence supports very low physiological toxicity, primary risks are psychological and behavioral
  • Therapeutic Potential: Promising results for depression, anxiety, PTSD, addiction, end-of-life distress

Impact on First Responders: As access expands through therapeutic and decriminalized channels, emergency calls may increase. Preparation and education now will improve outcomes.

📇 Quick Reference Cards

🚑 EMS Quick Reference Card

Psilocybin Emergency - Field Guide

SCENE SAFETY: Usually safe. Patient typically not violent. Be calm, move slowly.
EXPECTED PRESENTATION: Dilated pupils, mild tachycardia (90-110), mild HTN, anxiety, visual distortions, emotional lability. Duration: 4-8 hours.
CALL 911 IF: Unconscious, seizure, chest pain, HR >130, BP >180/110, temp >102°F, violent, suicidal with intent.
FIRST-LINE TREATMENT: Calm reassurance, reduce stimulation, breathing exercises. "You took mushrooms. This is temporary. You're safe."
IF MEDICATION NEEDED: Benzodiazepines first-line. Lorazepam 1-2mg IV/IM. Avoid antipsychotics unless severe agitation.
TRANSPORT: Not always required if stabilized, has capacity, and has supervision. Document thoroughly if refusing.
RED FLAGS: Drug interactions (SSRI+psilocybin = serotonin syndrome risk), head injury, sustained abnormal vitals, psychosis, poly-substance use.

👮 Law Enforcement Quick Reference Card

Psilocybin Call - Officer Safety & Response

SAFETY PROFILE: Low violence risk. Psilocybin users typically non-aggressive. Approach calmly, reduce stimulation.
YOUR ROLE: Medical emergency response. Ensure scene safety, let EMS lead. Avoid criminal focus during health crisis.
DE-ESCALATION: Calm voice, no sudden movements, give space. Loud commands increase panic. Be patient - person is not in normal state.
GOOD SAMARITAN: Person called for help during medical emergency. Consider whether arrest serves public interest vs. discouraging future 911 calls.
WHEN ARREST APPROPRIATE: Violence toward others, major crimes, public safety danger (driving), significant property destruction. Medical clearance first.
WHAT NOT TO DO: Don't interrogate during crisis. Don't search premises for drugs while person needs medical help. Don't prevent EMS from providing care.

Summary: Key Takeaways for All First Responders

1. Psilocybin is physiologically safe. No documented deaths from psilocybin overdose alone. Risks are psychological and behavioral, not toxicological.
2. Most calls require supportive care, not aggressive intervention. Calm environment, reassurance, and time are often sufficient. Benzodiazepines if needed.
3. Always consider differential diagnosis. Don't attribute all symptoms to psilocybin. Rule out serious medical conditions (head injury, serotonin syndrome, cardiac events).
4. Communication matters enormously. Calm, non-judgmental approach reduces patient distress and improves cooperation. Harsh treatment worsens outcomes.
5. Transport isn't always necessary. If patient stabilized, has capacity, and has supervision, refusal may be appropriate. Document thoroughly.
6. Good Samaritan principles apply. Encourage people to seek help during emergencies without fear of arrest. Saves lives.
7. Education and preparation improve outcomes. As psychedelic use increases (therapeutic and recreational), first responder knowledge is essential.
8. Patient-centered, harm reduction approach. Treat the person, not just the "drug problem." Respectful care builds trust and improves public health.

Questions or feedback on this guide? Contact your local EMS medical director, emergency department, or public health department.

Disclaimer: This guide provides educational information for healthcare providers and first responders. It does not replace clinical judgment, local protocols, or consultation with medical control. Always follow your agency's protocols and seek medical direction when appropriate.

Acknowledgments: This guide synthesizes information from MAPS protocols, emergency medicine literature, toxicology resources, and first responder best practices. Special thanks to EMS and ED providers on the front lines of compassionate emergency care.

Last Updated: January 2026 | Report Errors or Suggest Updates