pills-tablets.jpgIPNews® – Impax Laboratories Inc.’s attempt to bring to market a generic version of the emotional instability treatment Nuedexta drew a new infringement lawsuit on Monday from Aliso Viejo, Calif.-based Avanir Pharmaceuticals Inc., which owns the patent for Nuedexta.

Avanir’s patent for the drug issued in July, and it says Impax’s recently filed abbreviated new