> Historically, Sudafed has contained pseudoephedrine, the wonder drug equally good at clearing congestion and making crystal meth. It's much better at clearin

> Historically, Sudafed has contained pseudoephedrine, the wonder drug equally good at clearing congestion and making crystal meth. It's much better at clearing congestion than at making crystal meth. And, as the joke goes, it's easier to make an effective decongestant from meth than it is to buy it from a store.