Mescaline of the genus "Echinopsis" are technically controlled substances under the Controlled Substances Act, they are commonly sold publicly as ornamental plants. In the United Kingdom, mescaline in purified powder form is a Class A drug. However, dried cactus can be bought and sold legally. Mescaline is considered a schedule 9 substance in Australia under the Poisons Standard (October 2015). A schedule 9 substance is classified as "Substances with a high potential for causing harm at low exposure and which require special precautions during manufacture, handling or use. These poisons should be available only to specialised or authorised users who have
Mescaline experiences but they manifest more clearly with eyes closed and under low lighting conditions. Mescaline may cause Hallucinogen persisting perception disorder. As with LSD, synesthesia can occur especially with the help of music. An unusual but unique characteristic of mescaline use is the "geometricization" of three-dimensional objects. The object can appear flattened and distorted, similar to the presentation of a Cubist painting. Mescaline elicits a pattern of sympathetic arousal, with the peripheral nervous system being a major target for this substance. Mescaline is produced when products of natural mammalian catecholamine-based neuronal signalling such as dopamine and noradrenaline are subjected to