Some Indiana's mayors have joined law enforcement officials in urging lawmakers to combat the methamphetamine scourge by making some cold medications available only by prescription. Terre Haute Mayor Duke Bennett told about two dozen officials who gathered for a meth summit that the goal is for Indiana to join Oregon and Mississippi in making cold medicines containing pseudo-ephedrine available only by prescription. Niki Crawford with the Indiana State Police meth suppression unit told attendees at the summit that one box of pseudo-ephedrine-based medicine is purchased every 15 seconds in Indiana. The Hoosier State is among the top states for meth-related incidents.