N,N-Dimethyltryptamine (DMT or N,N-DMT) is a tryptamine molecule which occurs in many plants and animals. It can be consumed as a powerful psychedelic drug and has historically been prepared by various cultures for ritual purposes. Rick Strassman labeled it “the spirit molecule”. In most countries, DMT is illegal. DMT has a relatively short duration of action, intense effects and rapid onset. For that reason, DMT was known as the “businessman’s trip” during the 1960s in the United States, as a user could access the full depth of a psychedelic experience in considerably less time than with other substances such as LSD or magic mushrooms. DMT can be inhaled, injected, vaped or orally ingested, and its effects depend on the dose. When inhaled or injected, the effects last a short period of time: about 5 to 15 minutes. Effects can last 3 hours or more when orally ingested along with an MAOI, such as the ayahuasca brew of many native Amazonian tribes. DMT can produce vivid “projections” of mystical experiences involving euphoria and dynamic hallucinations of geometric forms. It is a structural analog of serotonin and melatonin and a functional analog of other psychedelic tryptamines such as 4-AcO-DMT, 5-MeO-DMT, 5-HO-DMT, psilocybin (4-PO-DMT), and psilocin (4-HO-DMT).