Mealey's (October 31, 2018, 11:24 AM EDT) -- PHILADELPHIA — A generic drug manufacturer on Oct. 23 filed an antitrust action in Pennsylvania federal court against Martin Shkreli, his drug company and two other drug companies for using a direct-sales pharmacy to keep potential competitors from getting samples of the drug Thiola to develop their own versions of the drug (Spring Pharmaceutics, LLC v. Retrophin, Inc., et al., No. 18-4553, E.D. Pa.)....