MAPLE GROVE, Minn., Jan. 5, 2018 /PRNewswire/ — Upsher-Smith Laboratories, LLC (Upsher-Smith) today reported that on January 3, 2018, its parent company, Japan-based Sawai Pharmaceutical Co., Ltd. (Sawai) successfully completed the sale of a 20 percent stake in Sawai America, LLC (SAL)…