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A new insight into ayahuascas adverse effects: Reanalysis and perspectives on its mediating role in mental health from the Global Ayahuasca Survey GAS PLOS Mental Health

Intriguingly, some research has even suggested that ayahuasca might affect the brain’s physical structure. It’s a bit like ayahuasca leaving a protective force field around your neurons after the psychedelic experience has faded. One area of growing interest is ayahuasca’s potential neuroprotective properties. It’s like ayahuasca doesn’t just throw a wild party in your brain – it might actually renovate the whole house. It’s as if ayahuasca temporarily turns your brain into a more malleable, adaptable organ, primed for learning and change. Studies have shown that ayahuasca can increase levels of brain-derived neurotrophic factor (BDNF), a protein that promotes the growth and survival of neurons.

This finding appears counterintuitive considering existing evidence on the positive effects of psychedelic therapy for depressive symptoms . Moreover, the complexity of defensive networks is central in emotional processing and response (e.g., ). This may reflect symptomatic improvements within the sample, though the relatively low prevalence of these disorders (19.7% depressive, 14.2% anxiety, 9.2% substance use, and 10.0% alcohol use disorders) could also explain their diminished importance. This suggests, from a sociological perspective, that individuals who start and continue using ayahuasca are mature, with their personalities already formed, and that ayahuasca use is not merely about seeking to get high.

Does ayahuasca have long term effects?

Thus, 25 individuals were evaluated before and after 24 h of ingestion of ayahuasca, using the Five Faces Mindfulness Questionnaire and the Experiences Questionnaire . The results indicate that ayahuasca consumers showed benefits in some psychological and interpersonal dimensions since the level of grief was lower on the Present Feelings Scale of the Revised Texas Grief Inventory . For this, a control group and a group treated with ayahuasca were used, and it was verified that the latter presented significantly greater results in the traits of impulsivity, compassion, attachment and spiritual acceptance .

  • The participants were asked to rate every item on a seven-point Likert scale, ranging from 1 (Strongly disagree) to 7 (Strongly agree).
  • It takes the shaman a lifetime of training to be able to deal with the ferocity of the trip.
  • Whether ayahuasca will ultimately live up to its promise as a therapeutic tool remains to be seen.
  • This would help to avoid the bias present in retrospective observational studies for which only long-term users were recruited.
  • I can now say that psychiatric medication saved my life.

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I1 binding sites are found throughout the human brain, and the highest density areas include in the striatum, pallidum, hippocampus, amygdala, and substantia nigra . I1 sites are decreased in brains of depressed suicide victims, notably in the hippocampus and prefrontal cortex . More work into the functions of sigma receptors and their role in depression treatment is needed. Past experiments have shown an antidepressant-like effect in mice administered sigma-1 receptor agonists and attenuation of these effects with sigma receptor antagonists . These receptors are found throughout the nervous system, and are concentrated in the hippocampus, frontal cortex, and olfactory bulb, consistent with a possible role in depression . Harmine acts to decrease synaptic glutamate via increased GLT-1/EAAT2 expression and subsequently increasing glutamate transport .

Trigeminal Nerve: The Brain’s Crucial Sensory Pathway

This is considered a cleansing process, helping to release negative energy, toxins, and emotional baggage. One of the most well-known effects of Ayahuasca is purging, which often includes vomiting. This blog explores the common side effects of Ayahuasca and what you should be prepared for before embarking on a journey with this plant medicine.

Assessing participants before and during the acute effects of ayahuasca, the authors found significantly increased divergent thinking while the subjects were on ayahuasca, and suggested this may facilitate psychotherapeutic interventions. Of 32 members belonging to the American Santo Daime church, 19 reported previous psychiatric histories, but all reported good mental health and only two currently had an active psychiatric disorder . Riba et al. found that at least 75% of 18 healthy volunteers with experience in psychedelic use responded positively to 14 selected items in the HRS with a dose of 0.85 mg of DMT/kg of body weight, and described the effects of increased activation, euphoria, and wellbeing. Kjellgren et al. described the “transcendental circle,” a cycle of experiences consistent among different users following ayahuasca ingestion. Some of the psychological effects during ayahuasca ingestion are reported by Mabit and include a powerful sense of self-confidence, a new perspective and reinterpretation of intrapsychic conflicts; users may reveal intimate truths, and ayahuasca may be powerful in facilitating psychotherapy. Motivations included “curiosity, desire to treat mental health problems, need for self-knowledge, interest in psychedelic medicine, spiritual development, and finding direction in life”.

Ayahuasca does not show activation in reward-related regions of the striatum or ventral-tegmental area on SPECT imaging 51,70, and only causes increased blood flow in the frontal and paralimbic areas. Any drug that affects dopamine has potential for abuse, and although harmine does, it does not cause dependence. Without the beta-carbolines found in ayahuasca, after oral ingestion of DMT, no psychoactive effects occurred; 97% of recovered compound was IAA, an MAO-dependent metabolite, and 3% was DMT-N-oxide (DMT-NO). Compared to DMT from ayahuasca, smoked, IV and insufflated DMT all have a very rapid onset of activity, with peak cognitive effects lasting 3-10 minutes and episodes 5-15 minutes. Only one case report attempted to quantify and compare concentrations and amounts of harmine and harmaline in an ayahuasca infusion and urine; however, it was difficult to draw any conclusions given the amount of uncertainty surrounding the preparation and ingestion . Harmine also increases superoxide dismutase and catalase activity, and these antioxidant effects may have relevance in depression and several neurodegenerative disorders .

🧠 Final Takeaway: Your Health Is the Foundation of Your Journey

Many participants undergo deep emotional processing, reliving past traumas, suppressed emotions, or unresolved conflicts. While many find these experiences enlightening, they can also be overwhelming or frightening. As Ayahuasca alters brain chemistry, some individuals experience dizziness or a sense of physical weakness.

Another study similarly showed tolerance with heart rate, adrenocorticotropic hormone (ACTH) and prolactin . In a study by dos Santos et al. , acute tolerance failed to develop for any measures aside from growth hormone (GH), which showed decreased release on second administration, legal drinking age in russia as well as a slightly lower response in the systolic blood pressure (SBP) and heart rate (HR). Vomiting results from increased serotonin (5-HT) stimulating the vagus nerve centrally, and diarrhea may be a result of excessive intestinal stimulation by 5-HT peripherally .

  • The drink is becoming more popular in North America, Europe and beyond for religious, spiritual, and recreational use , so it is important that medical practitioners be aware of the subjective and objective effects that could affect patients they may see and understand any adverse effects, as well as explore potential medical uses.
  • As hypothesized, the study found decreases in neuroticism 1 week after the ayahuasca ceremony; the other four traits were unaffected.
  • The depression was accompanied by a strong anxiety, panic attacks, depersonalization, distorted vision, emotional and mental pain, shakes and vomiting.
  • González et al. developed a study where they explored the effects of ayahuasca consumption on grief.
  • The actual lethal oral dose in female Wistar rats could not be determined in this study, but was shown to be higher than the 50X (which corresponds to 15.1mg/kg bw DMT).
  • “It is a spiritual experience, but it is not something you get up and dance to.

This study led to the conclusion that ayahuasca leads to improvements in affection and thinking style since the results showed that convergent thinking improved after the ceremony . Uthaug na vs aa et al. carried out a study whose objective was to evaluate the subacute and long-term effects of ayahuasca on well-being and cognitive thinking style, as well as to evaluate its influence on the degree of ego dissolution. This group also described, in an open-ended question, biographical memories, emotional release and experiences of contact with the deceased . González et al. developed a study where they explored the effects of ayahuasca consumption on grief. In another study developed by Mian et al. , the contribution of behavioral activation and mindfulness to the antidepressant effects of ayahuasca consumption was evaluated.

The morning after the ceremony, participants were asked to retrospectively rate the intensity of various aspects of the acute ayahuasca experience using 10 visual analogue scales (VASs). After being informed about the study and giving their consent, participants completed the baseline assessment in the week before they took part in an ayahuasca ceremony either online, or on-site. The combination of MAOIs and DMT is required to produce the psychedelic effects (Riba et al., 2003), including shifts in cognition, emotional lability, and visionary experiences (Shanon 2002). In that sense, they state that ayahuasca practices can hardly be assessed with the same parameters used for prescription medicines, since the myriad of its effects include challenging experiences that are intrinsic to the experience, some of which are considered as part of its healing process. The researchers also identified several factors that predispose people to the adverse physical events, including older age, having a physical health condition or substance use disorder, lifetime ayahuasca use and taking ayahuasca in a non-supervised context.

This step aims to refine our predictor set, enhancing the clarity of the SEM model by potentially reducing the number of variables involved. As mentioned above, due to the expected relationships between the study variables, we test a hypothesized mediational model. This was based on the PHQ-4 , supplemented with six additional items derived from the ayahuasca literature. Given the opaque nature of the ayahuasca-using population in many countries (where this practice is either prohibited or where its legal status remains unclear) a non-random sampling method was chosen. Survey participation was promoted through websites and email invitations from relevant organizations, ayahuasca retreat centers, ayahuasca churches, online groups and forums, via Facebook, and flyers at conferences and events.

After the ayahuasca use, more than 80% of those subjects showed clinical improvements that persisted at 6 months. In the first assessment, nearly half (45%) of the naïve users were found oxycodone and alcohol risks to meet the diagnostic criteria for a psychiatric disorder.

Dos Santos et al. reviewed several clinical trials on ayahuasca, psilocybin, LSD, and their effects and concluded that all these drugs could be beneficial in treatment of depression (especially in treatment-resistant subjects), as well as anxiety and alcohol and tobacco dependence. Confirming these findings, Stuckey also reported similar findings in the Hz bands, frequencies implicated in cross-modal sensory processing, and hypothesized a link between this and the intense synesthesia experienced during ayahuasca experiences. In a study by Cavnar , self-identified gay and lesbian ayahuasca users reported feeling affirmation of their sexual orientation. All participants reported ayahuasca rituals were pivotal to attaining abstinence or achieving less harmful patterns of drug use; they also reported ayahuasca was instrumental in understanding the causes of their addictions. In a questionnaire, 25 Northern European ayahuasca users reported increased self-awareness, being more loving, more empathetic, having greater creativity and new interests especially with nature, and having a more meaningful inner world .

It is notorious that most of the available studies were performed on volunteers in rituals or clinical trials, which is surprising when compared with the small number of existing in vivo and in vitro reports. However, the treatment of substance imbalances and addictions has also had some focus with regard to ayahuasca consumption. Additionally, despite global development, there are still many people in need and without access to basic health care, finding in plant specimens the only available cure. Any disagreement about study eligibility was solved through discussion between authors.

It felt like an illusion and like I was experiencing life from a different dimension. I could feel life escaping my body every passing day. I had an emotional agony that was ripping my soul and psyche apart. The following month I spent it without eating, sleeping and screaming to the top of my lungs from acute emotional pain that I was experiencing.

Machine learning and statistical methods were used to examine the relationship between sample characteristics, post-ayahuasca adverse mental states, and mental health outcomes measured by the 12-Item Short Form Survey (SF-12). On the other hand, Campagnoli et al. developed a double-blind study where they evaluated the effects of ayahuasca at two concentrations in a ritualistic context, using temporal reproduction tasks in participants with experience in ayahuasca consumption. The results revealed that the beneficial effects on the mental health of ayahuasca consumers may be related to non-pharmacological factors (placebo response) but also to pharmacological factors related to the use of ayahuasca . However, the same authors developed another study, this time a placebo-controlled naturalist observational study, where the influence of ayahuasca and the setting on changes in mental health was evaluated. Information on participants’ age, physical and mental health and history and context of ayahuasca use was collected.

Demographic information such as age, sex, education, and country of residence was obtained from participants, in addition to their lifetime history of mental health diagnoses and detailed ayahuasca drinking history, including frequency, patterns, and contexts of use . Moreover, subjective experiences typically experienced by ayahuasca users, such as visual distortions or hallucinations, could be perceived as beneficial rather than adverse effects. Moreover, previous studies analyzing the relationship of ayahuasca’s adverse effects with participants’ health status seem to show contradictory results.

NM, MU, and KO collected the data, MK and NM conducted the statistical analyses, SWT determined the concentrations of the ayahuasca components, MK, NM and KK prepared the first draft of the manuscript, and all authors discussed the results and contributed to the final manuscript. The original contributions presented in the study are included in the article/Supplementary Material, further inquiries can be directed to the corresponding author. That said, it could also be that highly motivated people with a positive attitude were attracted to participate, hence generalisation towards the general population is difficult for this type of studies. The strength of this study, being naturalistic, is also its greatest limitation. This is interesting to think of in light of what individuals report during a psychedelic experience.

Links to NCBI Databases

Ayahuasca is a South American psychoactive brewed drink used in traditional medicine and ceremony. Exposure to ayahuasca did not lead to significant changes in sperm motility and morphology, nor in the number of abnormal spermatozoids, and there were no significant alterations in daily sperm production, although the 8× group presented a reduction in this parameter. Evidence of ayahuasca use dates back 1,000 years , as demonstrated by a bundle containing the residue of ayahuasca ingredients and various other preserved shamanic substances in a cave in southwestern Bolivia, discovered in 2010. People who take ayahuasca show increases in openness and optimism . The use of ayahuasca is contraindicated with drugs or substances inhibiting monoamine oxidase (MAOI After drinking ayahuasca people are breaking up, hooking up, ditching miserable jobs, kickstarting new careers, enrolling in uni, and having babies.

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