The use of these plants is far from to 'fuck you up'. Getting 'fucked up' is what will give their use an even worse name than it already has in mainstream society, These plants have come to us as sacred, and the reasons for this are worth observing. Their effects can indeed be fun, but there is something far more special about them. Tread wisely, maybe read up on shamanism and look into it again from there.
Google = your friend. Try "psychedelic cacti" or some variation thereon. Also, they will indeed "fuck you up" meaning you will almost certainly vomit profusely and wish to god you had never ingested them, they will crack open your psyche and let out all the repressed horrible nightmares you hide from yourself and often last ten to twelve hours. If that sounds unpleasant, well it certainly feels unpleasant. Not for the faint of heart or those wanting a "fun" trip, but rewarding if you approach it with humility and respect.
I didn't try mescaline until I was pretty well experienced with acid and shrooms, so I have never had that hard of a time with it. Once you've gone through all the horrors of exposure to reality and learned those harsh lessons, the intensity fades when experienced again on subsequent trips. I felt the Mescalito presence begin to explain the harshness of reality, but backed off with an acknowledgment of my experience with it from other psychedelics. (But what do I know, I was on mescaline at the time.) As for alleviating your digestive distress, you might want to look into extracting mescaline salts.
I concur. i was just thinking that before i read this post. so many people refer to it as being fucked up. your not fucked up your enlightened.
maybe you just have inner demons? San pedro is a good spirit and is used as an ally in curing ceremonies. it varys from person to person. i have never puked. maybe you have a weak stomach i mean it just varies ya know? If you come at it with an open mind and heart you will probably have a vary good expierience unless you have inner demons or maybe are not the best person you can be.
I'd second that notion. Use meth or coke to get fucked up. Psychedelics demand respect or they lash back with a vengeance. Please choose your words and actions carefully.