Thar Pharmaceuticals Inc. plans to go public in a $50 million offering, according to a filing the company made with the U.S. Securities and Exchange Commission. Based in O'Hara Township, Thar spun out of Thar Technologies in 2007. The company plans to trade on Nasdaq using the ticker symbol THAR. The clinical stage biopharmaceutical company develops oral versions of existing drugs that are only delivered to patients through an IV. Thar's lead product candidate is T121, a treatment for CRPS,...