Ibogaine Therapy Terms Explained: 12 Words to Know

Every conversation about ibogaine therapy runs on a vocabulary that clinics, researchers and former patients use as if everyone already knows it. Flood dose, noribogaine, QTc, washout, bridge, integration: the words matter, because several of them describe the exact points where people get hurt. This glossary explains twelve of them in plain language, grouped by the stage of treatment where you will hear them, so you can read a clinic's intake form or a forum thread and know what is actually being said.

If you are starting from the beginning, the ibogaine treatment guide home page lays out the whole process, and the what is ibogaine page covers the compound itself. Everything below assumes only that you have heard the word before.

What do flood dose, booster and microdose mean in ibogaine therapy?

1. Flood dose

The single large dose given in a clinic, calculated by body weight, that produces the long, dream-like state ibogaine is known for. This is the medical event the whole treatment is built around, and it is the dose that carries the cardiac risk described further down. Everything a clinic does beforehand, the screening, the ECG, the blood work, is in service of this one administration.

2. Booster

A smaller follow-up dose given hours or days after the flood dose, sometimes to extend the effect on withdrawal symptoms, sometimes as part of a stepped protocol. A booster adds ibogaine on top of ibogaine that has not yet cleared. Ask how the clinic decides whether to give one, what monitoring continues afterwards, and whether the ECG is repeated before it.

3. Microdose

Repeated small doses, far below the flood dose, usually taken over weeks. Microdosing does not produce the full experience and is sometimes offered as maintenance after a flood dose. The evidence for it is thin, and the effect of repeated small doses on the heart over time is not well characterised, so it is not a low-stakes alternative.

4. TA and HCl

Two forms you will see on intake documents and price lists. Ibogaine HCl is the purified hydrochloride salt, with a known ibogaine content per milligram. Total alkaloid extract, or TA, is a less refined preparation from the iboga root that contains ibogaine alongside other alkaloids in varying proportions.

Dosing precision is easier with HCl. A clinic using TA should be able to explain how it standardises the dose, and if it cannot, that is your answer.

What is noribogaine, and why does the half-life matter?

5. Noribogaine

The main metabolite the body makes from ibogaine. It is active, it lasts far longer than the parent compound, and it is thought to account for much of the lingering effect on mood and craving in the days after treatment. It is also one reason the heart risk does not end when the visions do: a clinic that sends you home the next morning is sending you home while noribogaine is still at work.

6. CYP2D6

The liver enzyme that converts ibogaine into noribogaine. Its activity varies widely from person to person, and some common medicines block it, which raises ibogaine levels. That is the mechanism behind the medication rules below. It is not a sign that ibogaine strains the liver, which no source supports.

7. Half-life

The time it takes for the blood level of a substance to fall by half. Noribogaine's long half-life means its effects, including on the heart's electrical cycle, persist for days. When a clinic talks about keeping you under observation after the dose, this is why the observation needs to last days, not a single night.

What do QT interval, ECG and electrolytes mean for safety?

8. QT interval and QTc

On an ECG, the QT interval measures how long the heart's ventricles take to recharge between beats. QTc is the same number corrected for heart rate. Ibogaine lengthens it, and a long QTc can tip into a dangerous rhythm called torsades de pointes.

People have died during and after ibogaine therapy, in clinics as well as outside them, and heart rhythm problems are the suspected cause in many. Monitored hospital patients have reached dangerous QT intervals too.

The QT interval commonly stays long past the first day, and in reported cases for more than a week. Travel home follows a normal ECG, not a set number of days. Fainting, a racing or irregular heartbeat, or a seizure is an emergency at any time, and the risk lasts at least the first week and until an ECG is normal. Until then no new medicine is started, anti-nausea drugs included, without asking a prescriber who knows about the ibogaine whether it affects the QT interval.

9. ECG and telemetry

An ECG is a single recording of the heart's electrical activity. Telemetry is continuous monitoring through leads worn on the chest. A screening ECG before booking and continuous telemetry during and after the dose are what people mean by "cardiac monitoring".

Monitoring can catch a dangerous rhythm early enough to treat it; it does not prevent one, and it can miss one. Ask what equipment is in the room, who reads it, whether a physician is on site through the night, and what happens if a rhythm changes at three in the morning.

10. Electrolytes

Potassium and magnesium in particular. Low levels make a long QT more dangerous, and vomiting during treatment lowers them further. Ask whether both are checked and corrected before dosing, and again after vomiting. Magnesium is a reasonable precaution, not proven protection against arrhythmia.

What do washout, bridge and tolerance mean if you use opioids?

11. Washout

The period a medicine must be stopped before dosing so that it clears the body. The length depends on the drug, not on the calendar.

Some antidepressants block the enzyme that clears ibogaine and need weeks to wash out, not days. Stopping any prescribed medicine has its own risks and is done only with the prescriber who prescribed it; nothing here is an instruction to stop one. Heavy alcohol or benzodiazepine use must be stabilised first, because withdrawal seizures appear in the fatality reports.

For methadone and buprenorphine, washout is the most dangerous part of the whole plan. Stopping either carries its own overdose risk, and any change before dosing is done by the treating clinic's physicians, where the treatment takes place, never arranged at home. Ask how many days before dosing each must stop and what you take in the meantime. How long buprenorphine takes to clear depends on its form and dose, and a long-acting monthly injection can stay detectable for a year or more; routine urine screens can miss it, so ask how the clinic confirms it has cleared.

12. Bridge

A short-acting opioid that a clinic's physicians may use under monitoring between stopping a long-acting medication and the ibogaine dose, because methadone takes days to clear and itself prolongs the QT interval, while buprenorphine is long-acting and binds tightly. In the United States no prescriber can lawfully write a prescription for morphine, methadone or another Schedule II opioid to treat opioid use disorder, so a bridge is never something your own prescriber arranges before you travel. Never bridge with opioids from any other source: those bought outside a pharmacy may contain fentanyl, and no published ibogaine study has enrolled a fentanyl-using population. Before you leave the clinic, settle with the treating physician whether and when methadone or buprenorphine restarts and who would do it, since methadone for addiction normally comes only from a certified program.

Two more words belong in this section. Tolerance is how much opioid your body has adapted to, and it is the reason the weeks after treatment are dangerous: opioid tolerance falls after treatment, by an amount no one can predict, so a dose used before can be a fatal overdose. Opioids may also act more strongly than expected.

Naloxone is the medicine that reverses an opioid overdose. Leave with it, make sure the people around you know how to use it, and call emergency services at the first sign of an overdose.

What do integration, consent and aftercare mean after ibogaine therapy?

Integration is the work of turning whatever happened during the dose into changes that last: therapy, peer support, sleep, and a plan for the first weeks home. Ibogaine does not do this for you, and a clinic that treats the dose as the finish line is selling half a treatment. If you are comparing how different psychedelic approaches handle the therapy component, the page on ibogaine vs MDMA therapy shows how differently the two are structured around it.

Informed consent is the document you sign acknowledging the risks, including death. A real consent form names the cardiac risk, the medication interactions, and the fact that no outcome is promised. If the form you are handed reads like a waiver of liability instead of a description of risk, that tells you something about the clinic.

Aftercare is who you will talk to in week two, who will prescribe if you need something, and what happens if you use again. You will need help walking for at least a day after the dose, and the practical support should not stop there. Clinics vary enormously here, and the strongest programs are the ones that can describe aftercare in specifics before you pay.

Knowing these twelve terms does not remove the risks of ibogaine therapy; it makes you harder to mislead and better at asking the questions that matter. Keep this list beside the intake form, and when a word comes up that is not here, ask the clinic to define it before you sign anything. The rest of the Ibogaine Treatment Guide covers screening, cost, legality and clinic selection in the same plain language.