"It is in the realm of consciousness - the psyche, the mind, and the soul - where the results so far seen from MDMA make it one of the most fascinating, mysterious molecules discovered during this century. Its actions are little understood as yet. But it is clear that is has an extraordinary and unprecedented heart-opening or empathy-generating effect..."

- Peter Stafford, Psychedelics Encyclopedia

Name applied to some members of the Phenethylamine family of psychoactive molecules, MDMA (Ecstasy) and 2C-B, in particular. They are so-named due to their positive emotional effect upon the user. It is common to feel an overwhelming sense of love and human kinship towards those around you. It is for this reason that MDMA is sometimes known as the hug-drug.

See also the Ecstasy entry in the Essential Psychedelic Guide.