When most people picture ibogaine treatment, they picture the flood dose. The big experience. The visions, the life review, the long night that people who have been through it describe as years of therapy compressed into a day.
That is the part everyone talks about. It is not the part that worries the clinicians.
Ask the people who actually run these clinics where the risk concentrates, and almost none of them point at the flood dose itself. They point at the days before it. The stretch where a patient is still in withdrawal, still has opioids or their metabolites in their system, and is about to be given a substance that puts real stress on the heart. Ibogaine lengthens the QT interval. It can disturb cardiac rhythm. So the job in those first few days is to take someone who has been using fentanyl, or methadone, or Suboxone, and get them into a state where it is safe to hand them that.
That is the bridge to the flood dose. And it turns out nobody fully agrees on how to build it.
I called four clinics and asked each of them the same question: how do you get a patient safely to the flood dose?
A word on those four, because it matters. This is not a ranking, and it is not a list of clinics I am steering you toward. They are four clinics I have profiled for this site, each of which documents a real, specific pre-flood protocol I could ask about in detail. I chose them because, lined up, they show the range of how this is done. Not because I have decided they are the best. There are dozens of clinics I have not profiled, and some of them surely do this as well or better. The point of the piece is the contrast, not the four names.
I expected the four answers to converge on something close to a standard of care. They didn’t.
Here is the short version, because it matters more than anything else in this piece. There is no settled protocol for the days before an ibogaine flood dose. Four clinics, all run by people who have been doing this for years, gave me four different answers. Two of them, for the hardest cases, route a patient through opioids on the way to the flood dose. Two of them have built a way to keep opioids out of it entirely. None of them think the others are reckless. That disagreement is one of the most important things a family weighing this treatment should understand, and almost nobody puts it in front of them.
What everyone agrees on
Start with the floor, because there is one.
Every clinic I spoke with treats the cardiac question as non-negotiable. Nobody gets a flood dose without screening. An EKG is the minimum, run on arrival or before it. Two of the four go further and add a cardiologist’s stress test for higher-risk patients, which catches things a resting EKG can miss. Bloodwork, a medical history, a review of current medications: all standard.
They also agree that the flood dose does not begin until the patient is ready, and that “ready” is decided per person. Not one of these clinics runs a fixed, same-for-everyone detox protocol. Every one of them calibrates to the individual: what they used, how much, for how long, their age, their weight, their physical condition. The disagreement is not about whether to individualize. It is about what the individualized plan should actually contain.
So the floor is real. Everything built on top of it is where the four clinics part ways.
Where they split: the opioid question
The cleanest way to see the divide is to ask one question. On the path to the flood dose, does the clinic use opioids, or does it work around them?
Two of the four say yes, for the hard cases. Two say no, as a matter of design. Here is each approach, described the way each clinic described it to me.
The conversion protocol: New Path Ibogaine
New Path front-loads everything. Addiction patients are required to have a call with the medical director, Dr. Silva, before they ever get on a plane. On Day 1, every patient gets a full medical exam, an EKG, and a blood panel, regardless of why they are there.
For opioid patients, ibogaine does not begin until they have completed what the clinic calls its opioid conversion protocol and tested clean. The timeline is not a fixed number. I asked co-founder Armando Camacho specifically about fentanyl.
“Fentanyl patients need a stabilization protocol before ibogaine can be safe. Dr. Silva determines the timeline based on the patient’s amount used, their body weight, their age. It’s not a fixed number of days, it’s a medical decision he makes individually for every patient.” Armando Camacho, co-founder, New Path Ibogaine
You can see that philosophy in how New Path prices its programs. The runway lengthens with the substance: a fentanyl program runs up to 14 days, Suboxone up to 21, methadone up to 30. The longer the half-life of what the patient is coming off, the longer the bridge New Path builds.
The protocol that refuses opioids: Rite of Passage Mexico
Rite of Passage built its program around the opposite instinct.
Opioid bridging, putting a patient on morphine or oxycodone to manage the transition off a long-acting opioid, has long been one accepted approach to pre-ibogaine detox. Rite of Passage stopped doing it more than six years ago. Co-founder Luis Ortega was direct about it: no opioid bridging, full stop.
What replaces it is a front-loaded, body-first protocol. The first three days are high-dose NAD+ IV infusions alongside kambo, bufo, ibogaine boosters, PEMF therapy, coffee enemas, a clean diet, and daily exercise. The goal, in Luis’s framing, is to flush the body and stabilize blood chemistry so the patient enters ibogaine from the healthiest possible baseline. Benzodiazepine patients are the one exception that still gets a taper: a three-to-five day medically supervised taper, because benzo withdrawal carries real seizure risk and there is no workaround. An EKG is run on day three, and a cardiologist performs a stress test before the flood dose. The whole runway is nine days of preparation before ibogaine. Luis’s claim for the result: they have not seen acute withdrawal in over six years.
The bridge made of ibogaine itself: Ibogaine Clinic
Ibogaine Clinic used to taper patients off short-acting opioids before the flood. They stopped, and what they replaced it with is the most unusual answer of the four.
Instead of an opioid bridge, they give the patient a small, sub-perceptual booster of ibogaine: enough to keep them comfortable and hold off withdrawal until the full dose, not enough to produce a psychoactive experience. The reasoning is cardiac. As lead researcher Gavriel Dardashti explained it, an opioid bridge means adding another substance to a system that ibogaine is about to stress; using ibogaine itself as the bridge, with an EKG run immediately on arrival, carries in his words “very minimal” cardiac risk.
Ibogaine Clinic also offered the single most counterintuitive finding I came across. Drawn from roughly 3,000 patient outcomes over twenty years: patients who arrived deeper into withdrawal tended to respond more effectively to ibogaine, not less. The clinic does not fully know why, and it runs against the conventional instinct to get patients as stable as possible first. It is a useful reminder that a lot of what these clinics believe comes from their own accumulated data, not from a shared evidence base.
The bridge as a screening-and-time problem: IbogaQuest
IbogaQuest treats the bridge as something you mostly solve before the patient arrives, and then, for the hardest cases, with time.
Before a deposit is even accepted, applicants submit a six-test medical panel: blood pressure, EKG with the graph, complete blood count, basic metabolic panel, urinalysis, and a liver function test. The clinical team reviews it and has to approve before anyone travels. Patients over 60, or with specific conditions, add a heart stress test.
And then the honest part. For the hardest cases, IbogaQuest does use a taper. Founder Barry Rossinoff explained that buprenorphine and methadone have long half-lives and bind opioid receptors strongly enough to interfere with what ibogaine is trying to do, so patients on either typically need a structured taper onto short-acting opioids, often over weeks, before ibogaine can be administered. For 7-OH kratom, which the team described as “a real plague” among current cases, the transition onto short-acting opioids can take two to three weeks on its own. IbogaQuest offers medically supported early-arrival stays of up to three weeks for exactly this reason. Every case gets a protocol designed for that individual.