The top Democrat on a U.S. House of Representatives investigative panel is requesting interviews with a handful of executives at Valeant Pharmaceuticals International who were directly involved in the operations of specialty pharmacy Philidor, according to a letter seen by Reuters. In the Nov 16 letter, House Oversight Ranking Democrat Elijah Cummings asks Valeant CEO J. Michael Pearson to make employees Gary Tanner, Bijal Patel, and Alison Pritchett available for "transcribed" interviews.