Questcor's (NASDAQ:QCOR) flagship drug, Acthar, has been around for over 60 years. Despite its age, the company discovered a way to breathe new life into sales of this old drug. So, why does this remain one of the most controversial companies in the health care space today? In this video, Motley Fool health care bureau chief Brenton Flynn takes us through some of his likes and dislikes with Questcor.