A Simple and Convenient Synthesis of Pseudoephedrine from Meth (2012) [pdf] (maggiemcneill.com)

Abstract: “A novel and straightforward synthesis of pseudoephidrine from readily available N-methylamphetamine is presented. This practical synthesis is expected to be a disruptive technology replacing the need to find an open pharmacy.” :)

Because the government continues to restrict Sudafed supply, while Crystal meth improves in purity while reduces in price over recently!

TIL that one can turn street meth into cold tablets -- if one is so inclined.