What are the hallucinations brought by cactus juice?
The main hallucinogenic cactus is the peyote cactus. the
psychoactive alkaloid is called mescaline. There is not a term to
specify just cactus hallucinogens, it would just be a
hallucinogen.
please note that hallucinogen are not something to play around
with, definitely not for recreational use. It should only be used
as a spiritual tool.