Updated on February 3, 2023
7 min read

Ayahuasca Effects, Dangers, and Treatment

What is Ayahuasca?

Ayahuasca is a psychedelic tea from South America. It is native to the Amazon Basin and is found in Ecuador, Bolivia, Peru, Brazil, and Colombia. The Amazonian people have used it for religious and spiritual purposes for hundreds of years.

Ayahuasca is a combination of the stalks of the Banisteriopsis caapi vine and leaves of the Psychotria viridis (chacruna) shrub. Shamans, or spiritual leaders, may add other ingredients to the ayahuasca brew to tailor the experience.

P. viridis contains the primary psychoactive ingredient dimethyltryptamine (DMT). The B. caapi vine contains several beta-carboline alkaloids such as harmine and harmaline. These act as MAOIs (monoamine oxidase inhibitors). An MAO inhibitor is necessary for the DMT to be activated when consumed orally.

Ayahuasca's hallucinogenic effects are stronger than other hallucinogens. The intense psychedelic experience is led by a shaman that has dedicated their life to guiding people through the psychedelic experience.

The word “ayahuasca” comes from the Quechua language, spoken in Ecuador, Bolivia, and Peru."Aya" translates to soul or ancestors, and "wasca" or "huasca" means vine or rope. The loose translation is "vine of the soul."

Ayahuasca has increased in popularity in recent years due to several prominent writers. These include:

  • Isabelle Allende
  • Wade Davis
  • Martin Goodman
  • Steven Peck
  • Robin Quivers

Several other notable figures have brought attention to the drug throughout the years, including Richard Evans Schultes, William Burroughs, Claudio Narajo, and Dennis McKenna.

Central and South American indigenous people have formed several modern religious movements with the use of ayahuasca at the center of them. The most popular are Santo Daime and União do Vegetal. These religions usually integrate the ayahuasca experience with Christianity. However, animistic or shamanistic religions are not uncommon.

In some cases, Westerners have teamed up with shamans in the Amazonian rainforest to curate ayahuasca retreats aimed at healing mental or physical illness. Tourists from the United States, UK, and other countries often seek out these retreats in the Colombian, Peruvian, or Brazilian rainforests. These retreats also allow people to communicate with spirits.

In 1970, the U.S. Controlled Substances Act classified DMT as a Schedule I drug. Schedule I drugs have no medicinal value, are likely to be abused by users, and are highly illegal.


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Ayahuasca Experience

Users begin to feel the psychoactive effects approximately 20 to 60 minutes after consuming the ayahuasca tea. The psychedelic effects are dose-dependent, however, full effects last for one to two hours and usually end after four to six hours.

Ayahuasca users typically experience intense alterations to their reality (known as an ayahuasca trip) for hours. In contrast, those who inject DMT directly into the bloodstream may experience a short loss of self-awareness and feel like they “left” this plane of existence.

In most cases, undergo an “ayahuasca ceremony” led by a shaman. This typically lasts for an entire night and is accompanied by a purge that includes vomiting and diarrhea, believed to release pent-up energy and unexpressed emotions.

Many users have described a similar set of experiences that has come to be known as the “transcendental circle.”

Ayahuasca Effects

Around 30 minutes after ingestion, they begin to notice changes in perception, along with trembling or shaking. Users report an increase in vulnerability and ease of influence during this stage.

Following this, psychological defenses are lowered. Users may experience intense feelings of confusion, paranoia, and fear. They will often re-experience traumatic memories and report gaining new insights into personal matters. This state often induces terror and culminates in an intense vomiting session.

After the vomiting session, people report an abrupt shift into an “expanded” state of consciousness. Here, the user experiences an alteration in their perception of time. Many report a transcendental state of mind, where they encounter spirits or higher powers.

Other feelings include:

  • Oneness
  • Peace
  • Ecstasy
  • Insights into life after death

Approximately three to four hours after ingestion, all of these effects begin to fade. People are completely drained of energy and need a long period of rest to recover from their experience

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What Are the Health Benefits of Ayahuasca?

Ayahuasca may provide several potential health benefits, including for brain health and emotional well-being. However, more studies are needed to confirm these findings.

Potential health benefits of ayahuasca include:

Brain Health

The main psychoactive ingredients in ayahuasca are DMT and beta-carbolines, and they may protect and restore areas of the brain. Research suggests that ingesting DMT can result in higher production of antistress and antioxidant proteins.5


Ayahuasca may enhance a person’s ability to have a mindful state. A small study showed that taking ayahuasca once a week for four weeks was as effective as an eight-week mindfulness-focused stress reduction course.6

Mood and Emotions

Ayahuasca may improve the control of mood and emotions. It may also reduce stress and depression.

According to one study, ayahuasca preparations displayed antidepressant activity, likely due to the presence of harmine and other elements that contribute to neurogenesis.7 Neurogenesis refers to the production of neurons.

Post-Traumatic Stress Disorder (PTSD)

A 2018 study suggests that ayahuasca may help people with PTSD.8 It assists with retrieving repressed memories, which allows the brain to reprogram or remove the associated fear response.


Ayahuasca may also help people with substance use disorders. A small study consisting of twelve people with psychological and behavioral problems resulting from substance abuse took part in two ayahuasca ceremonies as part of a four-day treatment program.9 After six months, the attendees continued to report positive and lasting adjustments to their behaviors.

Suicidal Ideation

A 2019 study shows that lifetime psychedelic use can reduce levels of suicidal ideation.10 The study notes that ayahuasca displays promise to treat a wide selection of mental health problems that may lead to suicidal ideation.

Ayahuasca Side Effects and Risk Factors

Nearly all users of ayahuasca will experience intense vomiting and diarrhea. This is considered a part of the ceremony.

There are few negative short or long term effects of ayahuasca. However, like most psychoactive substances it will increase your heart rate and blood pressure, so anyone with an existing heart condition is at high risk.

People with a family history of any psychotic illness or nonpsychotic mania are advised against using the ayahuasca vine, and other psychedelic drugs, as they may increase the chance of psychotic episodes.

There have been approximately 8 deaths at ayahuasca retreats reported in the last decade. The causes of death are often unable to be confirmed. However, many people believe that the mixing of ayahuasca with certain pharmaceutical drugs, especially ones that cause an increase in norepinephrine, can be lethally dangerous.

Deaths are often blamed on poor shamanistic supervision. People wander off, or have negative reactions and may hurt each other during the ceremony.

Another risk factor is that many shamans have their own personal brew of ayahuasca. It may contain several unknown ingredients, making it impossible to know exactly how an individual will react to the brew.

Is Ayahuasca Addictive?

Ayahuasca is not considered addictive.

It does not induce the withdrawal symptoms or drug-seeking behavior associated with addiction symptoms.

Ayahuasca vs. Magic Mushrooms

Both ayahuasca and magic mushrooms have hallucinogenic properties. However, there are differences between the two substances. Most importantly, the psychoactive ingredients are different.

Magic mushrooms feature psilocybin instead of DMT and beta-carbolines in ayahuasca. Many people describe the effects of the substances as similar but still different. However, each person reacts differently.

In one survey, users suggested that ayahuasca had a more powerful effect than magic mushrooms.11 However, they also stated that its adverse effects were more potent too.

Users rated the comedown of ayahuasca as better than that of magic mushrooms. Ayahuasca users also described less of an urge for repeat use in comparison with magic mushroom users.

It is essential to note that the potential health benefits of ayahuasca occur from the effects of its active ingredients. As magic mushrooms have different active ingredients, they may not offer the same benefits for brain health and well-being.

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Addiction Treatment

Some people believe that ayahuasca may be an effective treatment for social or mental disorders, addiction, and a useful tool in psychotherapy to improve your mental health and overall well-being. However, the few medical studies of the drug have been inconclusive, and it is still considered highly illegal and dangerous. Especially due to the remote places and social settings in which most users consume the drug.

If you or a loved one are suffering from substance abuse disorder, the best course of action is to seek help immediately and review professional treatment options.

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Updated on February 3, 2023
11 sources cited
Updated on February 3, 2023
  1. Dos Santos, Rafael G., et al. “Ayahuasca, Dimethyltryptamine, and Psychosis: A Systematic Review of Human Studies.” Therapeutic Advances in Psychopharmacology, Apr. 2017, pp. 141–157, https://pubmed.ncbi.nlm.nih.gov/28540034/
  2. Barbosa, Paulo Cesar Ribeiro, et al. “Health Status of Ayahuasca Users.” Drug Testing and Analysis, vol. 4, no. 7-8, 2012, pp. 601–609, https://pubmed.ncbi.nlm.nih.gov/22761152/
  3. Riba, Jordi, et al. “Human Pharmacology of Ayahuasca: Subjective and Cardiovascular Effects, Monoamine Metabolite Excretion, and Pharmacokinetics.” Journal of Pharmacology and Experimental Therapeutics, vol. 306, no. 1, 2003, pp. 73–83., http://jpet.aspetjournals.org/content/306/1/73/
  4. Hamill, Jonathan et al. “Ayahuasca: Psychological and Physiologic Effects, Pharmacology and Potential Uses in Addiction and Mental Illness.” Current neuropharmacology vol. 17,2 : 108-128, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6343205/
  5. Szabo, Attila et al. “The Endogenous Hallucinogen and Trace Amine N,N-Dimethyltryptamine (DMT) Displays Potent Protective Effects against Hypoxia via Sigma-1 Receptor Activation in Human Primary iPSC-Derived Cortical Neurons and Microglia-Like Immune Cells.” Frontiers in neuroscience vol. 10 423. 14 Sep. 2016, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5021697/
  6. Soler, Joaquim et al. “Four Weekly Ayahuasca Sessions Lead to Increases in "Acceptance" Capacities: A Comparison Study With a Standard 8-Week Mindfulness Training Program.” Frontiers in pharmacology vol. 9 224. 20 Mar. 2018, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5869920/
  7. Morales-García, Jose A et al. “The alkaloids of Banisteriopsis caapi, the plant source of the Amazonian hallucinogen Ayahuasca, stimulate adult neurogenesis in vitro.” Scientific reports vol. 7,1 5309. 13 Jul. 2017, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5509699/
  8. Inserra, Antonio. “Hypothesis: The Psychedelic Ayahuasca Heals Traumatic Memories via a Sigma 1 Receptor-Mediated Epigenetic-Mnemonic Process.” Frontiers in pharmacology vol. 9 330. 5 Apr. 2018,
  9. Thomas, Gerald et al. “Ayahuasca-assisted therapy for addiction: results from a preliminary observational study in Canada.” Current drug abuse reviews vol. 6,1 : 30-42, https://pubmed.ncbi.nlm.nih.gov/23627784/
  10. Zeifman, Richard J et al. “The Impact of Ayahuasca on Suicidality: Results From a Randomized Controlled Trial.” Frontiers in pharmacology vol. 10 1325. 19 Nov. 2019, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6878725/
  11. Lawn, Will et al. “Well-being, problematic alcohol consumption and acute subjective drug effects in past-year ayahuasca users: a large, international, self-selecting online survey.” Scientific reports vol. 7,1 15201. 9 Nov. 2017, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5680239/

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