The brown sticky smelly one, yes, only one I've ever encountered, meaning that there could be any number of unknown and untested structural derivatives formed via slow equilibrial reaction processes occuring during or after synthesis... and I can definitively state that it has been damaging to the mucous membranes of my body - snorting it fucked my nose worse than bad, BAD coke, I thank my lucky stars I never shot it, eating it seemed to hurt my mouth, and the pyrollidine hypothesis seems to be conjecturally valid as I did find my lungs hurt like a biiiatch after smoking cones of it in carrier material through a water bong... and woke up with some of the inner tissues of my mouth blistered.
My immediate reaction to the first dose was, "OH, FUCK," it appears to be a potent norepinephrine reuptake inhibitor, which may indicate that it has dangerous seizure potential and would also explain why it seems to be more enjoyable if one has already depleted their general catecholamine reserves, since excessive NE is associated with feeelings of panic and impending muscular tremor.
Something about this compound reminds me of tramadol... which is also a NRI (fuck nomenclature I'm just communicating).
It seems that people will ingest benzodiazepines to allay the norepinephrinergic SIDE EFFECTS so they can continue to up the 'dopest amine ever'... In subject(s) who have fallen asleep after three days of hardcore use I have heard screams and cries that reminded me of sleep paralysis/panic attacks occuring during the so-called sleep attained at the time, which were not apparently remembered by said subject(s) upon awakening.
I'm sticking with speed, because that still works, over and over and over and over and over and over again, if you take rest breaks and vitamins.... anything that causes a permanent tolerance, well, how'd'ja think that happens?
"There are no weekend warriors on the D, you're either on it or you haven't tried it. How many tabs do you take per day."
"(shaking, tearing up the patty melt) Thats.... very difficult to determine... but not that many."
It makes any research pharmacologist weep to think that the reason why these things CAN be sprung upon a drug using population is because of the inability to regulate the purity and dosage of any compound, let alone ones like this.
It also appears to inhibit its own metabolism, which is why you can take a 4mg dose and stay awake for 6 hours, but if you push it to 12 you'll be up all night.
This, if anything, should be a wakeup call for anyone who thinks that only alcohol and cigarettes should be carefully checked for purity and concentration and distributed with aforehand knowledge of dosage range.
In other words, if all drugs are not LEGALIZED on an international level and subject to the same stringent manufacturing and distribution protocols of these other 'legal' drugs, we may possibly encounter an epidemic if not a pandemic of neurotoxicity and addiction which is totally unstudied and the medical community will have absolutely NO TREATMENT PROTOCOL WHATSOEVER for those who are unfortunate enough to accidentally or casually ingest a 'new' substance.
But hey, it's all gonna disappear in 2012 so let's all just sit on our asses and hopefully make some money, right....?