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    Peyote is a small, spineless cactus, Lophophora williamsii, whose principal active ingredient is the hallucinogen mescaline. From earliest recorded time, peyote has been used by native peoples in northern Mexico and the southwestern United States as a part of traditional religious rites. Mescaline can be extracted from peyote or produced synthetically.[1]

    Plants may be blue, green, yellow or a combination of reds and greens. The “crown” of the peyote cactus consists of disc-shaped buttons that are cut from the roots and dried. The dried buttons are generally chewed or soaked in water to produce an intoxicating liquid.[2]

    Hallucinogens like peyote (mescaline) create altered states of perception and feeling.

    Understand the risks

    Once ingested, peyote can cause feelings of nausea before the desired mental effects appear. Other effects can include increased body temperature, heart rate and blood pressure; loss of appetite, sleeplessness, numbness, weakness and tremors. Effects can be different during each use due to varying potency, the amount ingested, and a person’s expectations, mood and surroundings.

    A person using peyote may sometimes experience enjoyable sensations, but also report terrifying thoughts and anxiety, fear of insanity, death and of losing control. Some people experience “flashbacks,” or hallucinogen persisting perception disorder (HPPD), which are recurrences of hallucinations long after ingesting the drug. The causes of these effects, which in some people occur after a single experience with the drug, are not known.[3]

    Identify & address use

    Signs of use include sleep problems, uncoordinated movement, panic, paranoia, sensory confusion, disoriented thinking or detachment from reality. If you’re concerned your child may be using peyote or other substances, the following can help you address the behavior more effectively.

    A few simple tips and guidelines can go a long way toward spotting issues with drug use earlier rather than later.
    Learn more
    It can be scary if your child is using drugs or alcohol, and it's important to confront it. We're here to give you tips and strategies on how to do it.

    Last Updated

    October 2023

    [1]NIDA. “Hallucinogens and Dissociative Drugs.” National Institute on Drug Abuse, 1 Feb. 2015, Accessed 19 Dec. 2018

    [2]“Peyote and Mescaline.” DEA,

    [3]“Get Smart About Drugs.” Find Help | Get Smart About Drugs,

    Additional Sources:

    NIDA. “Hallucinogens.” National Institute on Drug Abuse, 11 Jan. 2016, Accessed 19 Dec. 2018