^^
Well, one other thing i should mention is for a good while before starting to use DMT i'd been taking piracetam usually every day. Also I take dexedrine..almost daily.
I pretty much stopped using piracetam eventually because, well I would notice after taking it then taking DMT, i had some wierd freaky reactions - piracetam seems to want to stop "dissociation", and although DMT isn't a typical dissociative, and i'm not saying I have any way to prove anything here but I believe from my ...uh..god knows how many experiences with it, it seems to let parts of your mind 'run on their own' (yet still connected, hard to explain), but piracetam interfers with that. It wasn't doing all that much for me either so i dropped the piracetam.
Its not the rewarding effects that have changed or lessened, its the actual psychedelic effects. They have "changed" but also I usually need higher doses than when I first started using DMT (funny, started using dmt muhaha). I've always noticed even at first though, with me and my friends and whoever, sometimes DMT would be more potent and sometimes less potent, seemingly "random". On other DMT forums i've read this is pretty typical. Ayahuasca drinkers say, it sometimes works but sometimes for some reason it just doesn't work, or barely at all. Or you need a higher dose that day (or time of the day).
Friends that have dosed (usually orally with harmala) its usually somewhat erratic, where 60mg would floor my friend one time, then he takes 85mg next, has a weaker experience etc. It seems to happen to everybody..from who i know and what i've read on the net. Anyway, but i've found, not just with me, but other people too.. if i take or they take just a little bit of this l-dopa extract before, it ALWAYS works, at the same dose! - any time of the day/whatever day/etc. Now its like "here ya go, 60mg" and it seems to work every time the same strength.
Me, I've wondered if my amph. use is causing a dopamine 'problem', but then I think well why did DMT work so much better in the beginning? Then, there's piracetam that I was taking, maybe taking it daily for a while..kept my dopamine up/something related to the amphetamine use.
Its definitely a massive difference in all of the effects, i mean not different but its exactly like the first "best" most psychedelic times at the beginning.
The OEV's, the CEV's, everything.. I know DMT doesn't cause tolerance, every time I take it I always "feel it", but maybe not get much effects or lack of certain effects. I don't know how to explain it more really. Smoking for example, I could take a nice big toke and totally "feel it" but, nothing really happens - sometimes things happen - but, it wasn't like the beginning, til now after trying this l-dopa thing.
I should hop on the ayahuasca forums and post something about this, and see if i can get some responses/experiences (users that ..use amphetamine, or whatever). I'm just really curious about this.. whats going on up in our heads here. Not just my head because friends are getting 'stable' effects at the same dose every time (well every time i've tried this so far with whoever).
I'm not sure ..really anyone has any answers why, the brain is a fucking complex machine. I will try taking some major doses of l-tyrosine in place of the l-dopa extract instead and see if that does the job. I don't want to lol, well be taking l-dopa too often, just so I can have my DMT trip

.
One thing i've always noticed on DMT (even if the psychedelic effects are lacking) is my sex drive goes through the roof, and my coordination is excellent - my hand is SO steady compared to sober (I can't think of any other psychedelic or drug that has this effect, it seems to effect my friends also, but i'm the one asking these questions I don't think most people notice every little detail if not asked). I've often thought something was going on causing some sort of "dopamine release" - but thats just my mental "observation" i guess and i couldn't really tell you *why* i've thought that many times and of course wouldnt know if thats at all true.
As for dosages of the l-dopa stuff, it says a 50% extract on the bottle, and it doesn't seem to matter how much of it i put in a capsule - i don't really measure it, but just "some" does the job. More doesn't seem to make it more intense or anything. (but i haven't tried drastically upping the dose)
-- oh yeah, one last thing, i know someone who could not get anything off 100mg orally, and smoking wouldn't do it for him either usually, so i gave him a tiny bit of l-dopa extract to take with the harmaline, then 100mg DMT, and he tripped his ass off hard. Its just got me thinking...%)