Peyote Effects on The Brain

Edmund Murphy
Dr. Tomas Salinas
Written by Edmund Murphy on 24 February 2022
Medically reviewed by Dr. Tomas Salinas on 02 December 2024

Peyote is a psychoactive cactus native to North and South America, known for its active compound, mescaline (3,4,5-trimethoxyphenethylamine). Mescaline induces powerful hallucinogenic effects, long used in spiritual ceremonies, and explored for its therapeutic potential. Below, we delve into how peyote affects the brain, its hallucinogenic experience, and its modern applications.

Key takeaways:
  • Hallucinogens such as mescaline primarily affect serotonin receptors (5-HT2A), altering mood, sensory perception, hunger, body temperature, and muscle control.
  • The effects of peyote vary but often include vivid visual hallucinations, synesthesia, and profound emotional states.
  • Peyote is integral to Native American religious practices and is currently being studied for its potential in treating mental health conditions like PTSD and depression.
Green cactus with pinkish-white flower in bloom, set against a blurred background.

What is peyote?

Peyote (Lophophora williamsii or Lophophora diffusa) is a species of cactus found in parts of South America and on the southern border of North America. The plant has been used for thousands of years for its hallucinogenic effects caused by the plant's high mescaline content, both recreationally and as part of religious and cultural ceremonies.

The cactus is consumed in various forms, most commonly through chewing or brewing into tea.

How does peyote affect the brain?

Mescaline, the primary psychoactive compound in peyote, interacts with the brain’s neurotransmitters, particularly serotonin. It binds to serotonin receptors, notably the 5-HT2A receptor, which is known to regulate mood, sensory perception, and cognition. This interaction disrupts normal brain activity, leading to hallucinations and alterations in perception.

Mescaline also affects other neurotransmitter systems, influencing mood, hunger, body temperature, and motor control, leading to profound distortions of a person's perceptions and sensory relation to reality. This is what is commonly referred to as a "mescaline trip" and can include seeing, feeling, and hearing things that aren’t really there. The effects are often compared to those of other psychedelics, such as psilocybin and LSD, though mescaline’s experience tends to be less intense and more grounded in visual and emotional sensations.

Click here to learn more about how long mescaline lasts.

What is a peyote trip like?

The "high" or "trip" felt from the mescaline can vary greatly between individuals, with experiences ranging from deeply spiritual to unsettling. Common effects include:

  • Visual Hallucinations: Distorted shapes, vibrant colors, and geometric patterns often accompany a peyote trip. Users may also experience visual distortions of objects and people.
  • Synesthesia: Many report a blending of senses, where sounds may be "seen," or colors may be "felt." This sensory fusion is a hallmark of mescaline's effects.
  • Emotional Shifts: Emotions can become heightened, with some users experiencing deep introspection, while others may confront painful memories or unresolved trauma. Those who promote the use of the drug suggest it produces a connection with the universe, as well as a floating, dream-like state.

The peak of a peyote trip typically occurs around 2 hours after ingestion and can last for up to 12 hours. During the onset, users may experience physical discomfort such as nausea, chills, or sweating. These effects are often temporary and subside as the hallucinogenic experience intensifies.

While the drug has notoriety as a spiritual substance, long used by the Native American Church for spiritual journeys, not everyone will have a positive experience with peyote use. Mescaline has the potential to heighten emotions as well as force people to live painful memories in vivid sensory visions. Depending on an individual's mental health history, past trauma, current emotional state, and other co-occurring conditions; a mescaline trip may turn into a bad experience that can be upsetting and traumatic.

Potential risks and negative experiences

Not everyone has a positive experience with peyote. While some users describe the experience as enlightening or spiritually profound, others may experience distressing or “bad trips.” These can include feelings of anxiety, paranoia, intense emotional discomfort, and living painful memories in vivid sensory visions. People with a history of mental health conditions or trauma may be more susceptible to these negative effects.

A person may also have a negative trip if they are combining mescaline with other substances like alcohol or opioids, and conversely if they have had limited exposure to hallucinogenic substances in the past.

Are there any benefits to peyote use?

Much like ayahuasca, the use of peyote as a means of spiritual practice in ceremonies has been dated back nearly 6,000 years to South American cultures like the Aztecs. While mescaline is classed as a Schedule I controlled substance and therefore illegal, it is legal to be used in religious ceremonies carried out by the Native American Church after the AIRFA bill was passed.

Ceremonies involving mescaline within the Native American Church are carried out by a healer known as a “Roadman” who guides participants through their mescaline trip so they may commune with a universal deity, often referred to as the Creator or Great Spirit.

For the people of the Native American Church, the practice of using mescaline from peyote plants as a way of deepening spiritual connection is a sacred and treasured process. Though not everyone who belongs to the church will take part in these ceremonies, those who do believe the drug will bring them closer to their spiritual leader.

Therapeutic potential of peyote

Aside from the religious dimension of peyote use, Native Americans also use the drug as a means of healing and treatment for mental and physical ailments.

In recent years, research into the therapeutic benefits of mescaline has gained traction. Preliminary studies suggest that peyote and other psychedelics could play a role in treating mental health disorders, including PTSD, depression, and addiction. One area of growing interest is microdosing, where small, sub-hallucinogenic doses are taken to potentially improve mood, creativity, and cognitive function.

Peyote’s historical role in Native American healing practices underscores its potential in modern medicine.

Conclusion

Peyote, through its active compound mescaline, offers profound effects on the brain and has a rich history in both spiritual and therapeutic contexts. While it is a powerful tool for those seeking spiritual insight, it should be approached with caution due to its unpredictable psychological effects. Ongoing research into its potential therapeutic uses, including microdosing and treatment for psychological disorders, promises to illuminate its place in modern medicine.

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Activity History - Last updated: 02 December 2024, Published date:


Reviewer

Tomas Salinas is a primary care physician with over three years of experience managing chronic diseases and mental health disorders. As an advocate for telehealth, Tomas has embraced digital healthcare to improve access and patient outcomes. Currently, Tomas is developing his medical writing skills, with a focus on raising awareness about the importance of chronic and mental health disease management. Tomas aims to contribute to the medical community through health communication and advocacy.

Activity History - Medically Reviewed on 25 November 2024 and last checked on 02 December 2024

Medically reviewed by
Dr. Tomas Salinas

Dr. Tomas Salinas

GP

Reviewer

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