Aren't some antipsychotics in very low doses mostly just (central) antihistamines? At least that's the case with Quetiapine.
Ive actually tried Quetiapine at a low dose for like 3 nights, quit it instantly. Both Quetiapine and Promethazine gives me BLACK(!) circles around my eyes because of the antihistamine. Zyprexa doesnt.
I think the antihistamine action of Olanzapine is different but im not sure. And i also dont think its mostly it cause at 2.5mg i get less pleasure from dopamine increasing activities so maybe some antagonizing going on...?
Im no expert in understanding binding profiles. If you'd please check into Olanzapine and see if you can see anything worth noting id really appreciate it, all i see is a long list of receptors(?) :P but im starting to agree that 2.5mg should be no problem

Which form of niacin - nicotinic acid? niacinamide? inositol hexanicotinate?
How much?
Been using nicotinic acid in varying dosage for +10 years, im sure you're familiar with Abram Hoffer. Definitely my favorite supplement. Now i take 200mg before bed every day, the effect is subtle but its there. 99% of the time i dont get the flush.
Maybe once a week (depending on stress level) I increase to 500mg and the effect is stronger. Hard to explain really, i both like it and dont, reality becomes a bit more unreal and distant... i would guess its mostly because of increased serotonin.
These days i only do high dosages of 1-3 grams, maybe a few times a month. I like it when the flush hits, great with a nice warm bath. It feels almost drug like for me at this dosage. Before i sleep i can feel like i should be doing this more often since it feels so good. If i keep taking it at gram dosages i eventually feel like its dulling my cognitive ability during the day, being too uncritical of stuff and feeling less sharp...
Sometimes during the summer i stop taking it entirely for a few weeks and seriously thats when ghosts starts appearing in my mind... nah its not that serious, but the difference is night and day even at 200mg
Edited by bce, 13 January 2022 - 11:17 PM.