The following is a list of psychedelic drugs of various classes. Serotonergic psychedelics are usually considered to be the classical psychedelics, whereby the other classes are often only considered to have secondary psychedelic properties. Some of these compounds may be classified differently or under several categories, due to unique structural classification, multiple mechanisms of action, or to the fact that the precise pharmacodynamic actions of psychedelic drugs are not yet completely understood. Also, due to the vast amount of possible substitutions and analogs of psychedelic compounds, their total number is quite large and is not fully reflected within this list, leaving room for many that have not yet been sufficiently investigated and even others that have not yet been discovered.
Entries marked with a '#' are naturally occurring compounds.