I'd be careful with the DXM though mentioned, low dose of DXM like you had a flu, would be slightly beneficial (anecdotally). NMDA antagonists in my experience especially that, has made it a lot easier on tolerance in tapering off of the stuff with kratom.
But I wouldn't do it for long term, or higher dose than what you'd take for a flu. And as a other note, heads up agmatine too is NMDA, mixing all of that, could certainly make ya feel dissociated, and worsen that aspect and other aspects of withdrawal for quite a few people I know, so I'd honestly recommend taking agmatine separately if you choose what Snafu says.