I wonder if there have been any studies to see if other production methods of meth have increased. I’m no expert (let’s be honest, it mostly comes from watching Breaking Bad,) but if that show is to believed, you can use methylamine instead of pseudoephedrine, albiet with a slightly different method. So are all the people who used to buy/steal pseudo now buying/stealing methylamine? I imagine it might be harder to get, cause it’s an industrial chemical, but if you can manage to get a barel of it, that would make a LOT of meth, cmpared to a couple pounds of decongestant.