Pharma Wars: Shares of Vertex Pharmaceuticals (VRTX -7.9%) and Achillion Pharmaceuticals (ACHN...

|About: Achillion Pharmaceuticals... (ACHN)|By:, SA News Editor

Pharma Wars: Shares of Vertex Pharmaceuticals (VRTX -7.9%) and Achillion Pharmaceuticals (ACHN -5.4%) move lower after separate announcements from Pharmasset (VRUS +2.2) and Inhibitex (INHX +14.3%) on drug treatments look set to affect sales for the firms of their competing products. Trading volume on all four companies is high.