Mescaline is a psychedelic alkaloid that’s found in a number of southwestern cacti like peyote, the San Pedro cactus, and the Peruvian torch. Peyote is popularly used by Native American shaman in religious ceremonies. The drug is illegal in the US but special exceptions are made for groups that use it for religious purposes.
Mescaline causes color enhancements, euphoria, and an increase in introspection. Users often report having personal epiphanies on while on the drug. When ingested, the peyote cactus is bitter and can commonly cause nausea and vomiting. Mescaline, like other psychedelic drugs, has a potential for psychological addiction. However, it isn’t chemically addictive and has a very low physical risk for healthy users.