Kambo

Plant Medicine

Kambo is the dried skin secretion of the giant monkey frog (Phyllomedusa bicolor), applied to small fresh skin burns in an Amazonian purification practice. It is not a psychedelic: it triggers an intense, short-lived physical reaction — flushing, vomiting, and a racing heart — and carries real, documented risks.

Also known as: Sapo, Phyllomedusa bicolor, Giant monkey frog secretion, Giant leaf frog, Acate / frog medicine

Written by Psymerge Editorial Team · Last updated June 4, 2026

Key facts

CategoryPlant Medicine
OnsetSeconds to a few minutes
PeakWithin about 5–20 minutes (the acute reaction)
Total durationAcute effects 20–40 minutes
After-effectsFatigue and a 'washed-out' feeling for hours; burn marks heal over days

Overview

Kambô (also called sapo) is the secretion of the giant monkey or leaf frog, Phyllomedusa bicolor, used in a practice that originates with some Amazonian peoples. In the ritual, small burns are made on the skin and the dried secretion is applied to them, allowing its many bioactive peptides to enter the body — a form of voluntary envenomation (den Brave et al., 2014).

Unlike the other substances on this site, kambo is not psychoactive and does not produce visions or altered states of consciousness. Instead it causes a brief, very intense physical reaction — within minutes the heart pounds, the face flushes and may swell, and strong nausea leads to vomiting, before the acute effects subside. It is promoted for 'detox' and healing, but clinical reviews note it has no proven medical benefit (den Brave et al., 2014).

Importantly, kambo carries genuine risks: severe low blood sodium (hyponatremia), cardiovascular collapse, and at least one documented sudden death (Leban et al., 2016; Aquila et al., 2018). This page summarises what it is, what it does, and its significant safety concerns.

History & origins

The use of Phyllomedusa bicolor secretion is documented among several Indigenous peoples of the western Amazon, such as the Matsés (Mayoruna), who have traditionally used it to sharpen hunting ability, increase stamina, and as a purification practice. Western science first characterised the frog's remarkable peptides in the late twentieth century, and these have been of pharmacological interest in their own right.

In recent decades kambo has spread well beyond the Amazon into urban and Western wellness settings, where it is offered for 'detoxification', healing, and personal growth. This rapid, largely unregulated spread has prompted clinical reviews and case reports warning doctors about its toxicological risks (den Brave et al., 2014; Leban et al., 2016).

Pharmacology & how it works

Kambo is the dried skin secretion of the frog Phyllomedusa bicolor, applied to deliberately burned skin so that its peptides are absorbed into the body. It contains a high concentration of bioactive peptides — including phyllocaerulein, phyllomedusin, sauvagine, dermorphin, and deltorphins — that act on the gut, blood vessels, and other systems to produce the intense physical reaction. It is not a psychedelic and does not cause visions or altered consciousness (den Brave et al., 2014).

Chemical class
Amphibian peptide secretion (not a classical psychoactive drug)
Routes of administration
Transdermal (applied to fresh skin burns)
Tolerance
Kambo is not a drug of dependence; there is no recognised tolerance or addiction syndrome.

Pharmacokinetics

The peptides are absorbed rapidly through the burned skin, producing an acute reaction within minutes that typically subsides within 20–40 minutes, often followed by hours of fatigue.

Effects

Physical Effects

  • Rapid flushing, heat, and a pounding heart
  • Profuse sweating
  • Strong nausea and intense vomiting
  • Swelling of the face and throat
  • A drop in blood pressure, dizziness, and sometimes fainting
  • Abdominal cramps and urgent bowel movements

Psychological Effects

  • A brief but overwhelming sense of physical intensity
  • Disorientation during the acute reaction
  • A feeling of relief or 'lightness' afterward that is often attributed to the experience

Spiritual Effects

  • Use in Amazonian traditions as a purification and strengthening practice
  • A sense of cleansing or renewal
  • A ritual ordeal believed to bring vitality, clarity, or luck in hunting

Dosage Information

Low: 1–3 points 'points' (skin burns) of secretion applied
Medium: 3–7 points 'points' (skin burns) of secretion applied
High: 7+ points 'points' (skin burns) of secretion applied

There is no standardised dose; potency depends on the secretion and the number of 'points', and it is applied by a practitioner. More points and repeated sessions increase risk, and kambo has no proven medical benefit. Educational only and not an endorsement of use.

Risks & safety

Contraindications

Because kambo causes a powerful cardiovascular and fluid-balance reaction, it should be avoided by:

  • People with heart conditions or low blood pressure, given its marked cardiovascular effects and a documented sudden-death case (Aquila et al., 2018).
  • People with a history of seizures or epilepsy, who are at greater risk if hyponatremia develops.
  • People with kidney disease or conditions affecting fluid and salt balance.
  • Pregnant or breastfeeding people, and anyone with a serious medical illness.

Drug interactions

Formal interaction data are limited, but caution is warranted with:

  • Blood-pressure and heart medications: kambo's strong effects on blood pressure and heart rate could combine dangerously.
  • Anything that affects fluid or sodium balance, which can worsen the risk of hyponatremia.

The greatest practical danger, however, is the combination of the secretion with the large volumes of water often consumed during the ritual (see below).

Psychological distress & bad trips

Kambo is not psychedelic, so it does not alter consciousness in the way other substances here do. The acute reaction is, however, physically overwhelming and can be frightening — intense nausea, swelling, a pounding heart, and a sense of losing control — which some people find distressing.

Rare but serious risks

Kambo carries real, well-documented risks despite being marketed as a natural 'detox':

  • Severe hyponatremia (low blood sodium): the ritual often involves drinking large amounts of water, which together with the secretion's effects can cause dangerously low sodium, leading to confusion, seizures, and coma (Leban et al., 2016).
  • Cardiovascular collapse and sudden death: a fatal case has been reported, likely due to the secretion's effects on blood pressure and heart rhythm (Aquila et al., 2018).
  • Severe vomiting with risk of choking and dehydration, fainting and injury, and swelling of the face and throat.
  • Wound infection from the skin burns, and no proven medical benefit to offset these risks (den Brave et al., 2014).

Vulnerable populations

Some groups face especially high risk and should avoid kambo:

  • People with heart disease, arrhythmia, or low blood pressure.
  • People with epilepsy or a history of seizures.
  • People with kidney disease or disorders of fluid and salt balance.
  • Pregnant or breastfeeding people, and anyone with a serious medical condition.
  • People taking blood-pressure or heart medication.

Dependency & addiction potential

Kambo is not psychoactive and is not addictive; it does not cause physical dependence or compulsive use. Its dangers are acute and physical — cardiovascular and fluid-balance effects — rather than related to dependence.

Overdose

There is no standard dose, and applying many 'points' or repeating sessions increases the danger. The most serious outcomes are severe hyponatremia (frequently driven by drinking too much water during the ritual) and cardiovascular collapse. If someone has seizures, severe confusion or drowsiness, fainting that does not quickly resolve, chest pain, difficulty breathing, severe throat swelling, or relentless vomiting, seek emergency medical help immediately.

Harm Reduction

  • Be clear-eyed: kambo has no proven medical benefit and carries real risks, including documented deaths (den Brave et al., 2014; Aquila et al., 2018).
  • Do not drink large volumes of water around a kambo session — forced water intake is a key cause of dangerous, even life-threatening, hyponatremia (Leban et al., 2016).
  • Avoid kambo entirely if you have a heart condition, low blood pressure, epilepsy, kidney disease, or are pregnant.
  • Only ever consider it with an experienced practitioner who screens for medical conditions, limits water intake, and works where emergency help is available.
  • Watch for severe swelling, fainting, seizures, confusion, or chest pain, and seek emergency care if they occur.
  • Keep the burn wounds clean afterward to reduce the risk of infection.

Cultural & spiritual context

Among the Amazonian peoples who originated it, kambo is a traditional practice tied to hunting, strength, and purification, embedded in a specific cultural and ecological context. Its modern global popularity as a 'detox' or healing ritual is a recent development that often strips away that context and is delivered by practitioners with widely varying training.

Beyond the health risks to participants, this raises concerns about cultural appropriation and about pressure on the frogs and their habitat. Engaging with kambo responsibly means being honest about the lack of evidence for its health claims, the real dangers involved, and the importance of respecting the Indigenous traditions and ecosystems it comes from.

Legal Status

Laws vary widely by country and change frequently, so we don't track legal status here to avoid showing outdated information.

Check current worldwide legal status on Psychedelic Alpha

Frequently asked questions

What is kambo?

Kambo is the dried skin secretion of the giant monkey frog (Phyllomedusa bicolor). In the ritual, small burns are made on the skin and the secretion is applied to them, allowing its bioactive peptides to enter the body — a form of voluntary envenomation (den Brave et al., 2014).

Does kambo cause visions or a 'trip'?

No. Kambo is not psychoactive and does not produce visions or altered states of consciousness. It causes a brief, very intense physical reaction — pounding heart, flushing, swelling, and vomiting — rather than a psychedelic experience.

Why can kambo be dangerous?

Two risks stand out: severe low blood sodium (hyponatremia), often made worse by drinking large amounts of water during the ritual, which can cause seizures and coma (Leban et al., 2016); and effects on blood pressure and heart rhythm that have been linked to a documented sudden death (Aquila et al., 2018).

Does kambo really 'detox' the body?

There is no scientific evidence that kambo detoxifies the body or treats disease. Clinical reviews describe it as having no proven medical benefit, while carrying real toxicological risks (den Brave et al., 2014).

Is kambo addictive?

No. Kambo is not psychoactive and does not cause physical dependence or compulsive use. Its dangers are acute and physical rather than related to addiction.

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References & further reading

  • den Brave, P. S., Bruins, E., & Bronkhorst, M. W. G. A. (2014). Phyllomedusa bicolor skin secretion and the Kambô ritual. Journal of Venomous Animals and Toxins including Tropical Diseases, 20, 40. https://doi.org/10.1186/1678-9199-20-40
  • Aquila, I., Gratteri, S., Sacco, M. A., et al. (2018). The Biological Effects of Kambo: Is There a Relationship Between its Administration and Sudden Death? Journal of Forensic Sciences, 63(3), 965–968. https://doi.org/10.1111/1556-4029.13641
  • Leban, V., Kozelj, G., & Brvar, M. (2016). The syndrome of inappropriate antidiuretic hormone secretion after giant leaf frog (Phyllomedusa bicolor) venom exposure. Toxicon, 120, 107–109.
  • ICEERS (International Center for Ethnobotanical Education, Research, and Service). Kambo information and safety. https://www.iceers.org/
  • den Brave, P. S., et al. (2014). Phyllomedusa bicolor skin secretion and the Kambô ritual (open-access clinical overview). https://pmc.ncbi.nlm.nih.gov/articles/PMC4582952/
  • Leban, V., et al. (2016). SIADH after Phyllomedusa bicolor venom exposure (PubMed). https://pubmed.ncbi.nlm.nih.gov/27421671/

About this article

Written by:
PE
Psymerge Editorial Team
Last updated June 4, 2026