@Lou66
Good point.
I have no illusions about substances like this - even under ideal circumstances there can be withdrawals; I just found that taking a whole month for a disciplined, structured detox worked well for me.
My Wife does it in 2 weeks - but, as you correctly point out - she's switching scotch for brandy (to borrow AA's lit.).
However - there is enough difference between her prescription pills and Kratom that rotating keeps her tolerance low when compared to other chronic pain sufferers.
We're hoping amputation will provide enough relief to get her off the pain killers; but that comes with its own problems...