Par Pharmaceutical (PRX -2.7%) trades lower after saying late Friday that it's challenging a...

|About: Par Pharmaceutical Companie... (PRX)|By:, SA News Editor

Par Pharmaceutical (PRX -2.7%) trades lower after saying late Friday that it's challenging a federal rule that it claims infringes on its first-amendment right to promote its anorexia treatment Megace ES. Doctors feel the drug could benefit a variety of patients outside the FDA approved AIDS-only spectrum, but the company says the FDA is blocking it from discussing treatment options.