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Careful intake screening for contraindications

Safety / Contraindications

Contraindications Matrix

Certain medical and psychiatric conditions make psychedelic ceremonies unsafe. Below is our contraindications framework, drawn from FDA clinical trial protocols at Imperial College and Johns Hopkins. This is not medical advice: discuss with your doctor.

Tier 1, Absolute Contraindications

Conditions that categorically prevent participation

If any of the following apply, you cannot participate in a Ceremonia retreat. These are not judgment calls, they are clinical safety requirements.

  • Active or untreated psychosis

    Psychedelics can trigger or worsen psychotic episodes. This is a standard absolute contraindication in every FDA-phase psychedelic trial.

  • Uncontrolled bipolar I disorder (active mania or rapid cycling)

    Mania risk is too high. Psilocybin and ayahuasca can destabilize mood in ways that are dangerous and difficult to contain in a retreat setting.

  • Severe uncontrolled hypertension (>160/100)

    Both psilocybin and ayahuasca transiently raise blood pressure. Uncontrolled hypertension creates serious cardiovascular risk during a ceremony.

  • Recent myocardial infarction (<6 months) or severe cardiac arrhythmia

    Cardiac stress during a ceremony is well-documented. Recent MI or unstable arrhythmia makes this risk unacceptable.

  • Acute liver failure or active cirrhosis

    Psilocybin and ayahuasca are hepatically metabolized. Active liver disease significantly alters drug clearance and increases toxicity risk.

  • Uncontrolled seizure disorder or recent seizure (<6 months)

    Psychedelics lower seizure threshold in some individuals. Uncontrolled seizure disorder is a disqualifying condition.

  • Pregnancy or active breastfeeding

    Teratogenic risk is unknown; ethical barriers are absolute. Pregnancy disqualifies participation at any stage.

  • Acute suicidality with active plan

    Active suicidality with a specific plan requires crisis intervention, not a psychedelic retreat. This is a safety-first referral situation.

  • Active uncontrolled substance abuse

    Uncontrolled addiction suggests difficulty with impulse regulation and increases risk of adverse reactions. Addiction in stable recovery is assessed individually.

  • Pharmaceutical MAOI use (not including ayahuasca-containing plants)

    Pharmaceutical MAOIs combined with the serotonergic load of psilocybin or the MAOI in ayahuasca create serious hypertensive crisis and serotonin syndrome risk.

Tier 2, Relative Contraindications

Conditions requiring specialist review or individual assessment

Tier 2 conditions do not automatically disqualify you. They require deeper screening, and in some cases, clearance from a psychiatrist, cardiologist, or pharmacist before we can accept your application.

  • Controlled bipolar II disorder

    Possible with careful screening, psychiatrist involvement, and retreat-type matching. Individual assessment required; active cycling disqualifies.

  • History of psychosis (in remission 2+ years, stable medication)

    Long-term stability on medication and psychiatric clearance are required. We assess relapse risk, medication interaction, and current insight.

  • Hypertension controlled on medication

    Requires pharmacist review of the specific antihypertensive and its interaction profile with psilocybin. Many are compatible with close monitoring.

  • Stable cardiovascular disease with cardiologist clearance

    A history of cardiac events does not automatically disqualify if the condition is stable and a cardiologist has reviewed participation.

  • Controlled seizure disorder (2+ years seizure-free on medication)

    Long-term seizure freedom on a stable medication regimen may allow participation. Anticonvulsant-psilocybin interaction review required.

  • Diabetes (type 1 or type 2)

    Blood glucose management during a ceremony requires a specific protocol. Medication interactions are reviewed individually.

  • SSRI/SNRI use (retreat-type dependent)

    For psilocybin retreats, SSRIs and SNRIs are Tier 2, requiring pharmacist-reviewed tapering. For ayahuasca, they are Tier 1 (serotonin syndrome risk). See medication interactions.

Medication contraindications

Many psychiatric medications interact with psilocybin and ayahuasca. Medication contraindications are handled separately, with pharmacist review, because the risk profile depends on the specific drug, dose, retreat type, and individual health status. See medication interactions and medication tapering.

If you have a Tier 1 contraindication

A Tier 1 condition does not close the door permanently. It means now is not the right time. Options include: integration coaching to work on the underlying condition, referral to a trauma-specialized therapist who can help stabilize you for future consideration, or returning when your condition is in remission.

If you are unsure whether your situation qualifies, start with a connection call. We will tell you honestly.

Go deeper

  • Medication InteractionsPharmacist-reviewed drug interaction matrix.
  • Medication Tapering Guide
  • Our Screening Process
  • Mental Health Considerations

Not sure whether your situation qualifies?

Start with a connection call. We will tell you honestly whether ceremony is right for you right now.

Book a Connection Call

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A nonprofit sanctuary in the Colorado Front Range, dedicated to the safe and ceremonial use of psilocybin under Colorado's regulated framework.

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