My name is Misty Fetko. I am a registered nurse and mom of two. In 2003, I discovered my older son, Carl, unresponsive in his bedroom. He passed away that day from a lethal mix of drugs, including Fetanyl, a prescription narcotic; marijuana; and dextromethorphan (DXM), the active ingredient in many over-the-counter (OTC) cough medicines. The shock was sudden. I am an emergency room nurse. I had recognized signs of substance abuse in patients over the years. But never once did I realize that cough medicine abuse was possible, let alone that my son would be drawn to this dangerous behavior. As...