I found a clean source, I get it tested independently. I take a few milligrams once every 1-4 weeks, depending on my stress / trauma load. Early on, I'd take some whenever the voice came back. Now I've learned what the edge feels like, I dose early enough to maintain silence.
I understand why pharmaceutical companies wanna keep this as a last resort. I've seen the treatment programs -- they're k-hole doses; nothing like what's been working for me. But there's no profit regimines like mine. And maybe it won't work more often than a placebo. But it's worked for me and that's what matters.
Walking on a line of dynamic webbing that kind of forces you to not to think about anything else.
https://en.m.wikipedia.org/wiki/Changa_(drug)
I have a post somewhere else in this thread where I describe it.