Buprenorphine
Suboxone, Subutex
Ibogaine and Methadone
Also known as: Methadose, Dolophine
Methadone prolongs QTc AND is a long-acting opioid. Ibogaine potentiates opioid effects. Must taper to low dose AND transition off methadone before arrival.
Severity
Major risk
Mechanism
Opioid receptor potentiation
Protocol Status
Pre-arrival transition to a short-acting bridge medication
Restart Delay
Physician discretion
What "Major risk" Means
Serious clinical risk requiring physician-led tapering, washout, and monitoring. Treatment may proceed once the medication is appropriately cleared or transitioned.
Clinical Action
What our medical team does for patients on Methadone.
Pre-arrival physician-supervised taper to ≤30 mg/day, then transition to a short-acting opioid 7-14 days before arrival. Last short-acting bridge dose 36-48 h before flood dose. Baseline EKG and QTc monitoring required.
Where the Washout Happens
Pre-arrival transition to a short-acting bridge medication
The long-acting medication is tapered and transitioned off before arrival under the patient's own prescribing physician. A short-acting bridge medication may continue until 36-48 hours before the flood dose, allowing the patient to arrive in a controlled withdrawal window without the long-acting agent in their system.
Post-Treatment Restart
Restart at physician discretion once acute window closes.
The Pharmacology
How Methadone interacts with ibogaine: opioid receptor potentiation.
Ibogaine resets and re-sensitises the mu-opioid receptor. Any opioid still circulating during dosing is potentiated, raising the risk of respiratory depression. Patients must be in measurable, monitored withdrawal (typically COWS ≥ 8) before ibogaine is administered, and long-acting opioids like methadone or buprenorphine must be tapered or transitioned in advance.
Same Mechanism
Other medications that interact via opioid receptor potentiation.
Same Severity Tier
Other major risk medications (different mechanism).
Common Questions
Methadone and ibogaine treatment.
Can I take ibogaine if I am on Methadone?
Major risk. Methadone prolongs QTc AND is a long-acting opioid. Ibogaine potentiates opioid effects. Must taper to low dose AND transition off methadone before arrival. Pre-arrival physician-supervised taper to ≤30 mg/day, then transition to a short-acting opioid 7-14 days before arrival. Last short-acting bridge dose 36-48 h before flood dose. Baseline EKG and QTc monitoring required.
How long do I need to be off Methadone before ibogaine treatment?
Pre-arrival transition to a short-acting bridge medication. The long-acting medication is tapered and transitioned off before arrival under the patient's own prescribing physician. A short-acting bridge medication may continue until 36-48 hours before the flood dose, allowing the patient to arrive in a controlled withdrawal window without the long-acting agent in their system.
What is the mechanism of the interaction?
Opioid receptor potentiation. Ibogaine resets and re-sensitises the mu-opioid receptor. Any opioid still circulating during dosing is potentiated, raising the risk of respiratory depression. Patients must be in measurable, monitored withdrawal (typically COWS ≥ 8) before ibogaine is administered, and long-acting opioids like methadone or buprenorphine must be tapered or transitioned in advance.
Can I switch to a different medication so I can have ibogaine treatment?
In many cases yes. Our medical team works with your prescribing physician to taper or substitute medications safely before treatment. The right substitution depends on the underlying condition you are treating with Methadone — contact us for an individual review.
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DA
Medically reviewed by Dr. Arellano, M.D.
Clinical Director, MindScape Retreat · Board-certified physician specializing in ibogaine-assisted detoxification with over 900 patients treated.
Last reviewed: May 2026 · See full medical team