Need another reminder of how much drugmakers spend to discover what doctors are prescribing? asks Charles Ornstein on Pro Publica. Look no further than new documents from the leading keeper of such data. IMS Health Holdings Inc. says it pulled in nearly $2 billion in the first nine months of 2013, much of it from sweeping up data from pharmacies and selling it to pharmaceutical and biotech companies. The firm’s revenues in 2012 reached $2.4 billion, about 60 percent of it from selling such information.