A cactus plant found in northern Mexico and the southwest of the. Its dried blossoms are used to prepare the hallucinogenic drug mescaline.
Derived from the Mexican peyote cactus, Anhalonium lewinii, this is a hallucinogen used for many centuries by Indian tribes in Mexico as an intoxicant to produce ecstatic states for religious celebrations. In recent times its ability to produce temporary psychotic symptoms has been used to investigate the mechanism of PSYCHOSIS. Mescaline has similar effects to those of LSD: changes in mood and thought, illusions, self-absorption and an altered perception of time. Experience of the drug may subsequently provoke panic attacks, deliberate self-injury, real psychosis and sometimes addiction (see DEPENDENCE).... mescaline
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