The short answer
Both are plant medicines held in ceremony, sought for healing and insight, and both deserve respect. Almost everything else differs: the plant, the tradition, the chemistry, the length of the night and the medical risks.
- Iboga is the root bark of a shrub from Central Africa, held in the Bwiti tradition of Gabon. One ceremony is one long night, usually followed by a full day of rest. Its main medical risk is to the heart's rhythm.
- Ayahuasca is a brew of two Amazonian plants. One ceremony lasts a few hours, and a retreat usually holds several, on following or alternate nights. Its main medical risk is interactions with other medicines, antidepressants above all.
Bwiti Life offers iboga only. This page tries to be fair to both, including when ayahuasca might suit you better.
Two plants, two continents, two traditions
Iboga is the root bark of Tabernanthe iboga, used for generations by the Bwiti of Gabon in initiations and healing ceremonies, around a fire, with Missoko Bwiti Music and sacred Songs, under the guidance of a practitioner. Ayahuasca is a brew of two Amazonian plants, the Banisteriopsis caapi vine and, most often, the leaves of Psychotria viridis, used by indigenous peoples of Peru, Brazil, Colombia and Ecuador and by syncretic churches such as Santo Daime.
The traditions differ in structure as much as in geography. A Bwiti ceremony is usually one long night with a single medicine given in steps; an ayahuasca retreat is typically several ceremonies over consecutive nights, each of a few hours.
Iboga and the Bwiti
Tabernanthe iboga is a forest shrub with small yellow-white flowers and orange fruit; the medicine is in the bark of the root. In Bwiti, iboga is not a drug taken for an effect. It is a teacher, received at the important moments of a life: an initiation, an illness, a question that will not leave you alone. The fire, the music and the songs hold the person through the night.
Our practitioners trained in the Missoko Bwiti tradition at Bwiti House in Gabon. You can read more about the plant itself on iboga root bark, explained, and about the tradition on the Missoko Bwiti tradition.
Ayahuasca and the Amazon
Ayahuasca is cooked from the stems of the vine and, usually, the leaves of a second plant. It lives in the healing work of indigenous curanderos, the hymns of the Brazilian churches Santo Daime and União do Vegetal, and more recent retreat centers. Songs called icaros and a diet before and after are central in many lineages. There is no single ayahuasca tradition.
The chemistry
Iboga acts through ibogaine and the other alkaloids of the bark, and through noribogaine, the long-lived metabolite that keeps working for days. Its targets include NMDA and kappa opioid receptors, the serotonin transporter, and the growth factors that drive neuroplasticity.
Ayahuasca works through DMT, a short-acting tryptamine that the body would normally break down in minutes, made orally active by the harmala alkaloids of the vine, which inhibit the enzyme monoamine oxidase. That MAO inhibition is what makes ayahuasca interact dangerously with SSRIs and several other medicines; iboga has its own interaction list, centered on the heart.
How iboga works in the body, in plain words
After the root bark is swallowed, the liver turns ibogaine into noribogaine, mainly through an enzyme called CYP2D6. Noribogaine leaves the body slowly: in healthy volunteers its half-life was 28 to 49 hours (Glue et al., 2015). That is one reason the effects run into the next day, and one reason the heart is watched after the ceremony ends. Ibogaine touches several systems at once rather than one receptor. More on how iboga works.
How ayahuasca works in the body, in plain words
DMT on its own does nothing when swallowed, because an enzyme in the gut and liver, monoamine oxidase, breaks it down first. The vine's harmala alkaloids (harmine, harmaline and tetrahydroharmine) block that enzyme, so the DMT from the leaf reaches the blood and the brain, where it acts on serotonin 5-HT2A receptors. In a placebo-controlled study, the effects peaked between one and a half and two hours after taking it, at the same time as DMT levels in the blood (Riba et al., 2003). Blood pressure rose modestly at the higher dose.
What the experience is like
No two nights are the same, with either medicine, and the setting changes a great deal. What follows mixes what is known (with sources) and what guests describe. Where it is a description, we say so.
Two medicines, two lanes, in motion
One long night, or several shorter ones
Step 4 · The days afterAfter iboga, a processing day and an integration day follow each ceremony, and noribogaine stays in the body for days. After ayahuasca, the main effects pass within hours; the time between ceremonies is for rest and integration.
- Shaded: night hours
- Iboga, one ceremony
- Ayahuasca, three ceremonies
- Noribogaine fading over days
The night itself
- Iboga: the ceremony runs until sunrise, the practitioner watching how you respond before giving more. Guests describe a long, lucid, introspective state: memories and images pass at speed, often as a review of their own life, while the body is heavy and still, with little visual overload and no sense of leaving themselves. Then a day of deep fatigue, and clearer days after.
- Ayahuasca: the effects peak one and a half to two hours after drinking and last around four hours (Riba et al., 2003; Palhano-Fontes et al., 2019). Guests describe strong visual and emotional content, a sense of presence or of other beings for many, and purging that the tradition treats as part of the cleaning. The ceremony may be repeated the next night.
Guests who have done both often describe ayahuasca as being shown something, and iboga as being made to look at something.
The purge, and the body
Both medicines can make you sick. In the ayahuasca trial for depression, about 57 percent of people who received ayahuasca vomited (Palhano-Fontes et al., 2019), and in a survey of more than 10,000 ayahuasca users, 69.9 percent reported acute physical effects, mainly vomiting (Bouso et al., 2022). Many ayahuasca lineages see the purge as the medicine at work. With iboga, nausea and vomiting are common too, and walking is unsteady for a day or so, so someone helps you whenever you stand.
The mind, in the weeks after
In the Global Ayahuasca Survey, 55.9 percent reported challenging mental effects in the weeks or months after, yet about 88 percent saw them as part of growth or integration (Bouso et al., 2022). Iboga guests describe a few raw, open days, then a gradual settling. Integration matters with both.
Safety and screening
Ayahuasca's main risks are interactions: SSRIs, MAOIs, lithium and some other medications can cause serotonin syndrome or hypertensive crises, which is why retreats ask for a diet and a medication washout. Cardiac risk exists but is lower.
Iboga's main risk is the heart's rhythm, which is why a serious iboga provider screens every guest and keeps a physician in the room: how we protect your heart. Whichever medicine you choose, ask the provider who will be in the room through the night, what medical training they have, and what happens in an emergency. Our answer is a physician on site day and night. Our protocol is on the Safety page.
Iboga and the heart
Ibogaine and noribogaine slow the heart's electrical reset between beats, which shows up on an ECG as a longer QT interval. Researchers propose this, through a potassium channel called hERG, as the mechanism behind the serious heart events reported with ibogaine (Koenig and Hilber, 2015). In a review of 19 deaths after ibogaine between 1990 and 2008, pre-existing illness, mainly of the heart, or other drugs explained or contributed to the death in 12 of the 14 cases with enough data (Alper et al., 2012). Screening looks for exactly those things, and the heart is monitored all night. That lowers the risk; it does not remove it.
Ayahuasca and medicines
The vine's harmala alkaloids are MAO inhibitors. Combined with an SSRI antidepressant, they can cause serotonin syndrome, a reaction that can be severe (Callaway and Grob, 1998). Other medicines and drugs that raise serotonin carry similar concerns, which is why retreats ask for a washout planned with a doctor. Physical health conditions and taking ayahuasca without supervision were both linked to more adverse physical effects in the survey data (Bouso et al., 2022).
What both need
- An honest medical history. Every prescription, supplement and recreational substance.
- A plan for your medicines. Never stop an antidepressant, a heart medicine or any other prescription on your own. A taper is planned with your prescribing doctor. With iboga, some antidepressants, such as paroxetine, also slow the liver enzyme that clears ibogaine, which roughly doubled exposure in a study of healthy volunteers (Glue et al., 2015).
- Mental health screening. A personal or family history of psychosis or bipolar disorder needs a careful conversation with either medicine. Anxiety disorders were linked to more difficult mental effects after ayahuasca (Bouso et al., 2022).
- Someone qualified in the room, and a clear plan to reach a hospital. For iboga, we believe that means a physician and cardiac monitoring.
What the research says
Neither iboga nor ayahuasca is an approved treatment for any condition. Both have encouraging early research, and both have studies that are small, short or uncontrolled. Here is the best of it, with its limits.
Ibogaine
- Opioid withdrawal and use. Thirty people treated in Mexico: withdrawal scores fell sharply, half reported no opioid use in the month after, and drug use stayed lower for twelve months, less markedly (Brown and Alper, 2018). A New Zealand study followed fourteen people for a year after a single treatment and found lasting reductions in drug use and depression; only eight completed every interview, and one participant died during treatment (Noller et al., 2018).
- Veterans with brain injury. Thirty special operations veterans received ibogaine with magnesium in a Mexican clinic. One month later, disability scores had dropped from 30.2 to 5.1, and PTSD, depression and anxiety scores were down 88, 87 and 81 percent. There were no serious adverse events and no clinically meaningful QT prolongation (Cherian et al., 2024).
- The limits. None of these studies had a control group. They used purified ibogaine in clinics, not root bark in ceremony. Their participants were screened and selected.
Ayahuasca
- Treatment-resistant depression. In a randomized, placebo-controlled trial of 29 people, a single dose of ayahuasca lowered depression scores more than placebo at one, two and seven days. At day seven, 64 percent responded to ayahuasca against 27 percent to placebo (Palhano-Fontes et al., 2019).
- Addiction. In an observational study in a First Nations community in Canada, twelve people took part in retreats combining group counseling with two ayahuasca ceremonies. Six months later, self-reported alcohol, tobacco and cocaine use had declined, with a significant drop in problematic cocaine use; cannabis and opiate use did not change (Thomas et al., 2013).
- The limits. The depression trial was small, followed people for only a week, and keeping a psychedelic blind against placebo is hard. The addiction study had no control group and twelve participants.
Put side by side, the evidence is of the same early kind. Ayahuasca has the stronger trial design in depression; ibogaine has more studies on opioid withdrawal itself. Neither has the large, controlled trials that would settle the question.
What each is used for
Ayahuasca is most often sought for emotional and spiritual exploration, grief, depression and a sense of connection. Iboga is sought for the same, and in addition, more than any other plant medicine, for interrupting physical dependence, on opioids in particular, and resetting craving. There is no comparable research on ayahuasca for withdrawal itself. Iboga is also chosen by people who want one deep night, and a review of their own life rather than visions.
Guests who come to us after ayahuasca often describe wanting to look at their own story directly, with less imagery. Others, after iboga, later seek ayahuasca for its sense of connection. Neither is a ranking.
Side by side
| Aspect | Iboga | Ayahuasca |
|---|---|---|
| The plant | Root bark of Tabernanthe iboga, Gabon | Brew of the B. caapi vine, usually with P. viridis leaves, the Amazon |
| Active compounds | Ibogaine and related alkaloids; noribogaine, made by the liver | DMT, made active by harmine, harmaline and tetrahydroharmine |
| One ceremony | One night until sunrise, about 12 hours at our center, then a processing day | Main effects around 4 hours, peaking at 1.5 to 2 hours |
| A retreat | Seven days with two ceremonies at Bwiti Life; ten or fourteen days with more | Often several ceremonies on following or alternate nights |
| What guests describe | A lucid life review, a heavy body, being made to look | Visions, strong emotion, presence, being shown |
| Main medical risk | Heart rhythm (QT prolongation) | Interactions, above all serotonin syndrome with SSRIs |
| Screening needed | ECG, electrolytes, medication review, cardiac monitoring all night | Medication review and washout, mental health history |
| Strongest research | Open-label studies in opioid dependence and in veterans | One small randomized trial in treatment-resistant depression |
Legal status
The law differs by medicine and by country, and it changes.
- Ayahuasca. DMT is a controlled substance in the United States and many other countries. In 2006 the US Supreme Court allowed one church, the União do Vegetal, to use its tea under religious freedom law. Brazil has long allowed ritual and religious use, set out in a 2010 national resolution, and Peru declared the traditional use of ayahuasca part of its national cultural heritage in 2008.
- Iboga. Ibogaine is Schedule I in the United States, and iboga root bark falls under the same prohibition. In Mexico, ibogaine is not named in the controlled-substance lists of the General Health Law reviewed for our guide, which is a narrower finding than permission. Gabon restricts its export; France lists it as a narcotic.
Neither medicine should cross a border with you. Details, country by country, in Is iboga legal? This is a summary, not legal advice.
How to choose
If you are looking for a visionary, communal, multi-night experience with a lighter medical load, ayahuasca may be the better fit. If you want a single, deep, lucid night with your own history, if dependence or a long-standing pattern is what you are trying to break, or if you want the medical safeguards of a clinical frame inside a tradition, iboga is the one. Many people do both in their life, years apart, for different questions. Neither is a shortcut.
Iboga may suit you if
- You are trying to stop opioids or another substance, with a physician beside you.
- You want to look at your own life clearly. Guests often describe iboga as direct, sometimes uncomfortably so.
- You would rather go deep once than return to the ceremony night after night.
- Your heart, your ECG and your medicines allow it.
Ayahuasca may suit you if
- You are drawn to visions, music, connection and a ceremony repeated over several nights.
- A heart finding, such as a long QT, rules iboga out for you, and your own doctor has reviewed ayahuasca against your heart and your medicines.
- Depression is your main question and you want the medicine with a randomized trial behind it, knowing that the trial was small and short.
Wait, with either, if
- You are in a crisis right now, or have thoughts of ending your life. Reach out first: in the United States, call or text 988.
- You have a personal or family history of psychosis or bipolar disorder that no doctor has reviewed.
- You are pregnant or breastfeeding.
- You cannot safely pause a medicine that interacts with the one you are considering.
A week at Bwiti Life
Here is the usual shape of our seven-day program, to compare with the ayahuasca retreats you may be reading about. The physician sets the final plan after screening.
Before you travel
A discovery call, then screening: a 12-lead ECG, a blood panel and a review of your medicines by our physician. Then two to four weeks of preparation.
Day 1, arrival
We pick you up at Cancún airport, twenty minutes from the center. Intake with the physician, your private room, the first fire talk in the evening. Nothing is given on day one.
Day 2, the first ceremony
A quiet day to set your intention and write your questions, counsel with the practitioner, a medical check-in and IV access placed before any dose. Then the fire, the music and the night, with the physician in the palapa until sunrise.
Day 3, the processing day
Rest in your room, light food, journaling, and the team checking on you. Most guests keep feeling the medicine through the day, until a deep sleep closes the ceremony.
Day 4, the integration day
Reflection and guidance from the practitioner, then an afternoon at the cenote. If you are cleared for it, preparation for the second ceremony.
Days 5 to 7, the second cycle
The second ceremony night, its processing day and a last integration day before we drive you back to the airport. Ten-day programs hold three ceremonies; fourteen-day programs, three or four.
Three months after
Four integration calls, one right after the retreat and one at the start of each month, with our psychologist and medical team reachable in between. See how it works and the ceremony.
The difference with many ayahuasca retreats is the rhythm: a ceremony with us is a three-day cycle, so a week holds two.
Questions people ask
Can I do ayahuasca and iboga close together?
Not close together. Both need the body clear of the other, of the diet and the medications involved, and both deserve their own integration. Leave months between them, and tell the physician about any recent ceremony during screening.
Is iboga stronger than ayahuasca?
Longer and more physically demanding, and deeper in a different way. It is not more visual, and it is not more euphoric. Stronger is the wrong word; heavier is closer.
Which is safer?
Each has its own risks. Ayahuasca's are mostly about interactions; iboga's are about the heart. With proper screening and a medical team in the room, an iboga ceremony is run as a monitored medical event. Without them, iboga carries the more serious medical risk of the two.
Do I purge with iboga too?
Often, yes: nausea and vomiting are common with iboga, though the tradition does not frame the purge the way ayahuasca lineages do. Fasting before the ceremony and the electrolyte protocol reduce it.
I take an antidepressant. Can I do either?
Never stop it on your own. With ayahuasca, an SSRI can cause serotonin syndrome. With iboga, several antidepressants matter for the heart and for how the liver clears ibogaine. Declare it on your application; our physician plans any taper with your prescribing doctor, and sometimes the answer is that it is not safe to change.
Which is better for addiction?
For opioids, ibogaine has more research, all without control groups. Ayahuasca has one small study showing less alcohol, tobacco and cocaine use. Neither is approved, and buprenorphine and methadone remain the best-proven care for opioid use disorder.
Which is better for depression?
Ayahuasca has the one randomized trial, small and a week long. Ibogaine's evidence is an open-label study of veterans, with depression scores sharply lower at one month. Both are early; talk with your own doctor.
Does Bwiti Life offer ayahuasca?
No. We work only with iboga, in the Missoko Bwiti tradition, with a medical team on site. If ayahuasca is the right medicine for you, look for a provider who reviews every medication, asks about your mental health history and can tell you exactly who is in the room.
Is ayahuasca the same as DMT?
No. DMT is one of its active compounds. Ayahuasca also contains the vine's harmala alkaloids, which make the DMT active when swallowed and carry their own effects and interactions. That combination is what makes a ceremony last hours rather than minutes.
Sources
- Riba J, Valle M, Urbano G, Yritia M, Morte A, Barbanoj MJ. Human pharmacology of ayahuasca: subjective and cardiovascular effects, monoamine metabolite excretion, and pharmacokinetics. Journal of Pharmacology and Experimental Therapeutics 2003;306(1):73–83. Read ↗
- Palhano-Fontes F, Barreto D, Onias H, et al. Rapid antidepressant effects of the psychedelic ayahuasca in treatment-resistant depression: a randomized placebo-controlled trial. Psychological Medicine 2019;49(4):655–663. Read ↗
- Bouso JC, Andión Ó, Sarris JJ, et al. Adverse effects of ayahuasca: results from the Global Ayahuasca Survey. PLOS Global Public Health 2022;2(11):e0000438. Read ↗
- Callaway JC, Grob CS. Ayahuasca preparations and serotonin reuptake inhibitors: a potential combination for severe adverse interactions. Journal of Psychoactive Drugs 1998;30(4):367–369. Read ↗
- Thomas G, Lucas P, Capler NR, Tupper KW, Martin G. Ayahuasca-assisted therapy for addiction: results from a preliminary observational study in Canada. Current Drug Abuse Reviews 2013;6(1):30–42. Read ↗
- Glue P, Lockhart M, Lam F, Hung N, Hung CT, Friedhoff L. Ascending-dose study of noribogaine in healthy volunteers: pharmacokinetics, pharmacodynamics, safety, and tolerability. Journal of Clinical Pharmacology 2015;55(2):189–194. Read ↗
- Glue P, Winter H, Garbe K, et al. Influence of CYP2D6 activity on the pharmacokinetics and pharmacodynamics of a single 20 mg dose of ibogaine in healthy volunteers. Journal of Clinical Pharmacology 2015;55(6):680–687. Read ↗
- Koenig X, Hilber K. The anti-addiction drug ibogaine and the heart: a delicate relation. Molecules 2015;20(2):2208–2228. Read ↗
- Alper KR, Stajić M, Gill JR. Fatalities temporally associated with the ingestion of ibogaine. Journal of Forensic Sciences 2012;57(2):398–412. Read ↗
- Brown TK, Alper K. Treatment of opioid use disorder with ibogaine: detoxification and drug use outcomes. American Journal of Drug and Alcohol Abuse 2018;44(1):24–36. Read ↗
- Noller GE, Frampton CM, Yazar-Klosinski B. Ibogaine treatment outcomes for opioid dependence from a twelve-month follow-up observational study. American Journal of Drug and Alcohol Abuse 2018;44(1):37–46. Read ↗
- Cherian KN, Keynan JN, Anker L, et al. Magnesium-ibogaine therapy in veterans with traumatic brain injuries. Nature Medicine 2024;30(2):373–381. Read ↗
- Gonzales v. O Centro Espírita Beneficente União do Vegetal, 546 U.S. 418 (2006). Read ↗
- ICEERS. Ayahuasca in Brazil: general legal situation, including CONAD Resolution 1/2010. Read ↗
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