TERRE HAUTE, Ind. (AP) – Some of 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 Friday in the western Indiana city for a meth summit that the goal is for Indiana to join Oregon and Mississippi in making cold medicines containing pseudoephedrine available only by prescription.

Such medications can be used to make meth.

The Tribune-Star reports summit speaker Niki Crawford of the Indiana State Police meth suppression unit told representatives of state agencies, state police and others that one box of pseudoephedrine-based medicine is purchased every 15 seconds in Indiana.

The U.S. Drug Enforcement Agency says Indiana is among the top states for meth-related incidents.