Though not widely appreciated, DXM is also unbelievably addictive and may at higher doses cause serotonin syndrome all by itself. Drug interactions are a serious concern.

Sudafed is now illegal in this state. A valid MD prescription is required to obtain it. This move has dramatically reduced the amount of meth production here in OR, so it seems to be working. Unfortunately, all the zillions of folks with allergies and sinus and cold issues get the short end of the stick. Thanks, meth people!