Mescaline is a naturally occurring proto-alkaloid psychedelic compound that falls in the class of phenethylamine. It is known for its hallucinogenic impacts, and it exerts effects that are similar to those associated with psilocybin and LSD. This compound is found naturally in the San Pedro cactus, the Bolivian torch Cactus, and the Peruvian Torch. The compound is also found in the Peyote Cactus, where it is frequently incorporated in a lot of religious ceremonies. The compound exerts its hallucinogenic impacts by binding to receptors for dopamine and norepinephrine. It also activates the serotonin 5 HT2A receptor, where it binds with a high degree of strength. Changes in serotonin levels are responsible for the effects that people feel, with some of the most common examples being auditory and visual hallucinations. People usually feel the effects of mescaline in under an hour, with the effects dissipating after ten to 12 hours, depending on the size of the dose someone has taken.