What will remove poision from wall paneling that is not wood paneling?

Depends entirely on the toxin. Asbestos, an integral part of older wallboard, can't be removed -- you need to have a trained crew strip out the board itself. Lead-based paint -- I *think* -- can be removed. If you accidentally spilled Ant Bait on your wall, you can wipe it off carefully yourself.
No way to answer this better without knowing the toxin and ideally the substrate or walling material.