Ethocybin (CEY-39; 4-phosphoryloxy-DET; 4-PO-DET) is a homologue of the mushroom alkaloidpsilocybin, and a semi-synthetic psychedelic alkaloid of the tryptamine family. Effects of ethocybin are comparable to those of a shorter LSD or psilocybin, although intensity and duration vary depending on dosage, individual physiology, and set and setting.
Ethocybin has been studied as a treatment for several disorders since the early 1960s, and numerous papers are devoted to this material. It's short-lived action was considered a virtue.
Effects
Ethocybin is absorbed through the lining of the mouth and stomach. Effects begin 20-45 minutes after ingestion, and last from 2-4 hours depending on dose, species, and individual metabolism. The effects are somewhat shorter compared to psilocybin.
Pharmacology
Ethocybin is probably metabolized mostly in the liver where it becomes ethocin, but is also broken down by the enzyme monoamine oxidase.
Mental and physical tolerance to psilocybin builds and dissipates quickly. Taking ethocybin more than three or four times in a week (especially two days in a row) can result in diminished effects. Tolerance dissipates after a few days, so frequent users often keep doses spaced five to seven days apart to avoid the effect.
Legality
Ethocybin is not controlled in the USA, but possession or sale may be considered illegal under the Federal Analog Act.