i used to do just as many drugs in dreams as i did awake...lol, and at that time i was tripping quite a bit while waking. also, my first consistent lucid dreams always wound up being an attempt at tripping. i remember telling myself there was a blotter in my hand *jedi mind trick style* lol, not sure if it appeared or not though.
i have done drugs in dreams which i would not do in real life, and have experienced effects which are very much along the lines of what i've read about.
my list:
LSD - at least a few acid dreams
Mushrooms - i had a bag of them and it spilled into dirty dish water, which turned blue. needless to say i drank it, lol
Datura - never worked with this in real life, but had a uniquely-delirious effect in the dream. i remember 'seeing' the datura entity within the perception of my surrounding (bleacher at the time), almost like it was in the shadows but i could feel it.
Benedryl - never did this one in real life, but i ate some on my room dreaming, and remember a sensation of having no grasp of my orientation, i was lying on my bed and gravity lost all sense. i remember looking at my jim morrison poster and seeing the symbol lose all meaning, an empty delirious view of something mundane. pretty interesting, definitely what my archetypal delirium experience resembles.
Ketamine - never done this in real life either. in a dream i ate 2 pills of ketamine, and experienced a disassociative state quite unlike my DXM experiences, but definitely what i would imagine ket to be like. but the dream kind of 'fell in the hole' so it was more visual than i imagine ket to be. everything kind of fell apart when it came on. In another dream, i was on a couch in a desert which was connected to a bedroom, lol. our desert coffee table (casual in the moment) had a bong on it, which my friends began to pass around. They were smoking ketamine mixed with vitamin power (like broken up centrum or some shit), i was definitely planning on not partaking, but when it was passed to me i forgot. it tasted minty lol.
Peyote - i'd never met with the peyote at the time of this dream. I was sitting on the front porch with my mom and sister at the place where i grew up. i took a fresh button and carved a conical opening in the top, and then pressed a hole through perpendicularly. we were 'smoking' it, as in the lighter would be pulled down into the conical 'bowl' i'd carved. i remember a feeling coming over me when hitting it, but the dream faded out soon after.
I've had a handful of dreams where drug consumption was the goal, but it wasn't achieved. i had some salvinorin crystals or something that i was going to smoke, i've had a dmt-attempt dream.
Weed-i've always got a J in my dreams
ha, there's more, let me ponder....