After a few months of research of various scientific studies, mind/brain theories and experiences of various disorders posted on the forum, mostly in the personality disorder department, attacking this from all angles and perspectives I have come to the following conclusion.
Medicine is in the wrong track and has been for years. That's why they don't work.
The basic root system that causes most of the issues is the fear/desire(approach/avoid) system, this is obvious but they don't seem that focused on figuring it out or are just plain stupid(I suspect myself of cerebral NPD, please dont mind). It an evolunionary very old system and newer more conscious brain regions piggybacked onto it. So, if we ask the question what comprises the basis of the fear/desire system there is no straight answer from medicine. Dopamine is still beleived to be the main desire facilitator while fear isn't even recognized in such a "neurotransmitter" way - thus, there is absolutely no treatment for fear itself except - various sedatives and drive depleters. Similarly there is no treatment for anhedonia as anhedonia is caused by fear. This brings us to the reason why no medicine really works. Most disorders stem from fear and anxiety. No pharmacological medicine touches fear itself. It seems most scientists do not even consider a neurotransmitter responsible for fear as they propose dopamine is the reward chemical.
I will explain why this has happened and how it actually works.
Fear/reward system basic neurotramsitter/receptor networks are based on mu opioid and kappa opioid receptor networks. The opioid receptors have been researched exclusively for pain management. They are a taboo for anything else, thus the constant blunders with the likes of dopamine/serotonine etc. Only recently the kappa opioid system has been found out to be related to fear rather than reward. And this should have really set the ball rolling but it didn't.
Fear response is coordinated via dynorphin and kappa opioid receptors. kappa opioid receptors facilitate many functions depending on brain/body region. In the body, they cause analgesia, just like mu opioid. This is analgesia to prepare for a feared event. In the brain they inhibit dopamine in the mesolimbic structures(decreases perception of reward as we'll see later). This causes acute anhedonia - to distract from rewards in the face of fears. The main function of interest of KORs for me is associating memories with fears. Dynoprhin, by activating KOR (kappa opioid receptors) in the hippocampus causes fear memory recall. Fear memories are recalled and dumped onto the pre-frontal-cortex for resolving a fear avoiding solution. This proces of resolving the fear avoiding solution is also "modulated" by dopamine, just as desire aproaching solutions. Dopamine is perception control. The more dopamine, the more the feared memories seem fearful and the desires seem more desired. Dopamine increases focus on the "task at hand" be it a fear or a desire. Dopamine increases black & white thinking because it increases valence of the memories used to resolve strategies. It also increases the perception of strategies. Dopamine is just a perception control "tool" neurotransmiter. It is drive. Dopamine is the first neurotransmitter to appear in evolution. In single cellular lifeforms level of dopamine is relative to distance to food source(chemical sensing). In humans for example in one brain region dopamine is highest just BEFORE orgasm and plummets as orgasm STARTS. Dopamine is expectation/perception control. Dopamine is involved even in movement. A person moves his hand not by flexing the muscle until the desired position is reached, but by imagining the desired hand position and the "lower tool" networks do the work of flexing the muscle. Dopamine controls the vigor of movement through perception of where the hand needs to be and how soon - when. Dopamine is used to singal "distance to expectation" which results in modulation of drive. This is how dopamine is involved in skeletal muscle movement and why parkisons move the way they do.
Dopamine infact has a single general function in the body and dopamine networks are used by other networks for this function. Dopamine is perception control. Changing perception causes drive. Imaging the hand to be up causes drive for it to happen. Imagining a pot of gold behind the rainbow causes the drive to get it. Imagining a ghost in a dark room causes the drive to exit it or turn on the light. It performs the same function actually in all systems. Thus, playing with dopamine(l-dopa, ritalin, concerta, wellbutrin, amph...) always causes sideeffects, it just depends how the drugs penetrates where and what is the natural level in your body in ceratain systems. Increasing dopamine in a fearful state increases anxiety as many users of the above drugs know. It also often causes compulsive gambling and stuff like that. Decreasing dopamine(antipsychotics) causes various sideeffects, worst of all is tardive dyskenisia but the regular one is numbing of general life drive.
Mu and kappa opioid are systems two sides of the same coin - fear/desire. They compete with each other for "drive"(remember how fear disables dopamine in the reward part of the network). They cause drive by increasing perception of feared/desired possibilites using the dopamine networks. All this is then dumped onto the conscious(prefrontal cortex) for resolving.
Not only do they compete with each other but they also regulate each other asymetrycaly. A reward can seem greater than a fear and override the feeling of fear - acutely, causing the chasing of a reward and ignoring the fear(thus drug use). Long term - the fear system will upregulate because it is not normal for rewards to keep overriding fears(thus long term stimulant use always leads to paranoia and eventualy psychotic paranoia). Reward system is there to prolong life(feeding, breeding and in mammals - playing/friending has piggybacked onto this), fear system is there to stop end of life(destruction). Thus the fear system upregulates to match the activity of the reward system. Unfortunately it doesn't seem to work the other way around and this is infact quite logical. Being in a fearful situation does not validate upgrading the reward system to "comfort" you. Death is threatening, even if it is a chronic threat, the reward system will not upregulate to "match" - this would be maladaptive in nature.
So, this is important with addictions. Addictions keep abusing the reward system, causing the fear system to upregulate. Once the drug/whatever is out of the system the fear system remains upregulated and you have depression/withdrawal because of it. You need the drug again to override the upregulated fear system. Fearful people, PDed people tend to "self medicate" with drugs rather than just use them for fun. This is why it happens and why it helps. The fear system downregulates slowly over time. but disordered people cling onto childhood fears that are subconscious and never let go. these fears are triggered simply by being around people, or having to do something another person will judge. they cause lifelong maladaptive thinking.
The fear-kappa opioid system is responsible for fear memory recall and storage. This infact facilitatetes fear acquiring and fear extinction. In reality, amygdala doesn't forget fears. PFC learns contexts in which it can/should inhibit amygdalas fear. The contexts are the "fear related memories". When standing on the edge of a tall building you inevitably feel fear. If there is a big cushion below - this doesn't really help much with the fear. All this happening is memorized and related to the fear via kappa opioid receptors and dynorphin. When you jump and survive, this too is memorized and associated to the fear by the same receptors. Thus, the same receptors memorise the fear before and after, they memorise the context of extinction, they memorise that the cushion helps to survive. Next time you'll fear less and less becase the recall will invoke the memory of survival and that will reduce the drive to avoid it. But only in that situation. Standing on some different edge of a building with no cushion will invoke the full fear.
So, researching chemicals that effect kappa opioid receptors and reports of use actually confirms everything I postulated. Kappa agonists salvia divinorum and ibogaine cause massive fear recall and extinction visions, even preverbal fear memories. Both cause an afterglow of calmness and content although ibogaine is quite more advanced and epic in its action. Ketamine also touches kappa and is able to provide a few days to a week of nondepression from a single acute use, just as salvia. All three cause instant depression release AFTER they're out of your body. no drug does this. no other drug is able to come near their effectivness even after months of constant use.
Salvia and ibogaine(and i believe ketamine) are the only known substances to actually reverse drug tolerance. Any drug tolerance. Salvia can do it by low dose periodical kappa tickling. Ibogaine can do it in one 36 hour session!!! Ketamine also through low dose periodical kappa tickling. Although noone realises this connection of ketamine to salvia and ibogaine, the effects of ketamine are eerily similar and only after much digging I did find that ketamine does infact also agonize kappa opioid receptors. Main and most researched action of ketamine is basicly NDMA antagonism and it has been noticed that NDMA antagonists reduce the speed of tolerance acquirement(memantine is popular for this) - this is a secondary way to do it - it interferes with LTP processes but is not able to revers tolerance, just slow it down by inhibiting the low-level LTP process that facilitates it).
But the key are much ignored kappa opioid receptors. They connect salvia, ibogaine and ketamine. All three plague the internet with reports of instant antidepression effects of even the treatment resistant depressions. People have resorted to electroconvulsive shocks and failed only to have their depression releived completely after a 40 minute ketamine session. Salvia can often induce the same effect and ibogaine as well. All this is uncontrolled use so there's all kinds of reports, but find me a single report of any medicinal chemical actually treating depression without after a SINGLE use and causing the person to be depression free for the next period of 3 days to a week without any drug in their system - and thus WITHOUT ANY SIDEEFFECTS. No official drug can ever dream of doing this not in 1 case of a million.
Experiences people have on ibogaine > salvia > ketamine confirm all this. Google it. Read erowid. Try and find stories of people who did not use it to get off heroin but to fix mental issues. Unfortunately, neither of these can be patented so... not much profit in research.
Furthermore kappa antagonists have been recently developed and are being tested in animal trials. They can be patented so there is progress. While I do not think simply inhibiting the fear system is better than resolving the fears themselves - the kappa antagonist are very interesting as well. One account of use of JDTic from some person kappazappa sounds insanely good. Google it. The person was in a very bad mental state, wasnt talking or leaving his room. Day 1, first pill, of trial he was happily walking around talking to people looking them in the eyes, feeling connected with them and sharing love, also spontaneous erections(he was ED before). After a few days he developed an urge to finish college and find his calling(!! compare that to a prozac/zoloft/whateverSSRI course, after a few days the suicidal ideation begins - does that really sound like it's going in the right direction?). Only one other account is of the psychonaut dave pearce, he says it's a good nootropic - well, he may not have a PD to solve with it.
Anyway, this is why it all doesnt work, they're on the wrong track for years. They're abusing the lower level control systems like dopamine and serotonin and creating side-effect after side-effect.
Most of my reasoning is gathered from pubmed studies of pharmaceuticals and neurology and theories of mind(theory of mind, empathising-systemising, freud, klein, perceptual control theory) and also trying to pair it up with evolutionary progress. I can't really be bothered to refind all the resources and put urls but I'll be glad to find and provide proof for anything anyone finds suspicious as a fact.