Well unlike regular Opiates Kratom also has an adrenergic effect and is partially a stimulant and stimulants can make people aggressive at times.
Even though I don't USUALLY get irritable on Kratom, it can happen at times and did for a minute or two tonight because I mixed it with more coffee than I usually do.
Does he drink coffee also or take other stimulants with it??
If so, that can potentiate it in an aggressive way.
Then there's also the fact that you may not always be aware of exactly when he's on it or coming down off of it and the come down can be harsh at times, or he may not be on the proper dose to get himself feeling the way he wants and be aggressive for that reason.
Kratom usually only lasts 4 hours or so so depending on how often he takes it he may be coming down when you don't realize it and getting aggressive because he needs his next dose or maybe he tried to take a dose that would sedate him or make him feel just right but took too much or too little.
Sometimes when I tried to take the right dose I don't take enough and need more and if I don't take more I might be a bit irritable, or at times I might take too much and feel kind of weird.
All of these could be factors.
One thing I know is that I can't usually fall asleep for hours after my dose wears off but will be wide awake and kind of amped up.
And of course, when in withdrawal one can be very irritable and many people think that Kratom might effect your testosterone like a lot of other opiates (there's no solid evidence it's true yet though) and make him irritable for that reason.
While I HOPE it's not true it might be, and it can sometimes make me irritable, though USUALLY not while on it, but while coming down or a day or two afterwards if I don't take more.
All of these are factors.
I think Kratom is by and large a relatively "good" drug in that I find it pleasurable and AT TIMES helpful with my anxiety and depression but it DEFINITELY has a dark side some people don't recognize which is why I am trying to take a break right now.
Some users try to pretend it's god's gift to the earth in a similar way to how many weed users say the same about marijuanna, but it can effect people badly at times and the greater dependence he forms the more likely he is to have negative side effects.
And being "self centered" is only natural for most drug users, ESPECIALLY an opioid user.
It's a purely self gratifying drug.
I still think it should stay legal and don't want to speak ill of it, but when taking a drug which has both stimulant and depressant qualities and is addictive and in the end doesn't solve anyone's problems (cause no drugs really DO) leads to some irritable and aggressive behavior, well...it's just par for the course and taking too much can sometimes lead to anxiety from the adrenergic effects.
You know you are taking something that feels good without actually helping and that underlying realization can lead to anger at oneself.
I just tossed some of mine in the garbage cause I felt I was overdoing it and whenever I start using too much I do things like that and usually it helps me regulate my use and eventually I can bring it back to a baseline of more "centered" use with less negative effects.
But yeah...he sounds like he could use a break from it if it's even right for him AT ALL...and keeping all these things in mind with it's opiate mixed with adrenalin fueling properties and short life in the system before it needs to be taken again.......I think you have your answers right there.
I'm not saying you should come down on him or tell him to stop because it probably won't work anyways.....but with effects like those, if I were in his position I'd say I need a break....just like I am telling myself right now for not entirely different reasons.
Drugs produce ups and downs and make you feel great while you realize at the same time they aren't solving the problems you really wish they would = Is there ANY reason NOT to understand his reactions??
It's pretty simple really.