I received the following from a friend:
This apparently confirms that mescaline is not the only entheogenic alkaloid found
in cactii. The details are a bit sketchy to say the least but quite interesting
nonetheless.

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My friend performed an extraction on Trichocereus terscheckii
(collected in Argentina), he crystallized all the mescaline and
discarded it. He was  left with an oil containing only the other
PEA's present in Trichocereus terscheckii. He then took some
Trichocereus peruvinaus with an unspecified quantity of this oil.
Glorious! Sometimes he would drink only the oil and it was a
fascinating effect too. I have experienced super potent trips
from T.terscheckii; however I never experienced pure mescaline
so I cannot compare. However, with T.terscheckii it always was
a 16 hours trip, no matter how much tissue I ingested (note:
I always drunk the liquid resulting from the boiling the
tissue - puaj what a beer LOL).

I remember when I first tried a cactus I made a tea out of
T.pasacana, obviously nothing happened! A week later I prepared
and consumed T.terscheckii (i just noticed this was the right one)
and nothing happened again - I was furious and then unexpectedly
paradise came to me!! Oh God! What visions!!


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Originally published on tacethno.com