MDMA is an entactogen and ketamine is a dissociative anesthetic, and they should not be broadly categorized with classic psychedelics like LSD and psilocybin.

“What I think is important to understand because when we hear the word psychedelic a lot of people tend to lump together LSD psilocybin and MDMA if you talk to researchers in these areas they will tell you that MDMA really isn't that much of a psychedelic it's an empathogen with stimulant properties and it also has the serotonergic component that makes it an empathogen or an actogen so MDMA is very different than the other psychedelics and my hunch is that over the next few years we will stop talking about MDMA as a psychedelic because it does not tend to produce visual hallucinations or auditory hallucinations of the sort that classic psychedelics do and in general it is more of a mood impacting drug than it is Mystical”