Hallucinogen is a wrong label for psychedelic or psychotomimetic . Hallucino-Gen means 'creator of unreal visions'. That's not the basic. OK, illusions occur ( so term illusiogenic is quite to the point ) and maybe -- with a very high dose -- occasionally a lost 'hallucination'. Hallucinations are just not the basic 'ingredient' of the experience induced by magic mushrooms , the chemical psychedelics , mescaline or LSD . The DEA and other 'war-ondrug-lords' not only label psychedelics as 'hallucinogen'. but also dissociatives ( Ketamnine , PCP ) and empathiogens ( XTC / MDMA ). I think that is wrong because these drugs have a completely different impact.