It hits the same receptors in your brain as coke or heroin.
And, my dad is a recovered cocaine addict. So....I don't think he's ever going to get off of this stuff.
And I think 95% of it is placebo effect. He's feet will be shaking around uncontrollably, he mixes up some kratom, drinks it, and literally as it passes his lips, his feet stop moving. Yeah, stuff doesn't work that fast. I've pointed that out and he just becomes incredibly irate. And thats when I quit ordering it for him.