Oneirogen

An oneirogen, from the Greek ὄνειρος óneiros meaning "dream" and gen "to create", is a drug that induces a dream-like state of consciousness, also known as oneirophrenia. The term oneirogen, oneirophrenic, or oneiric, was introduced to refer specifically to ibogaine- and harmaline-type hallucinogens by William Turner and Claudio Naranjo in the 1960s and 1970s. Subsequently, the term has also sometimes been used to refer to non-hallucinogenic drugs that facilitate dreaming.