The attorneys general of Connecticut and Pennsylvania have launched investigations into its diversion from the legitimate pharmaceutical market, including Cephalon's "sales and promotional practices for Provigil, Actiq and Gabitril".
Jaksa agung Connecticut dan Pennsylvania mengadakan penyelidikan terhadap penggelapannya dari pasar farmasi yang sah, termasuk "penjualan dan praktik promosi Provigil, Actiq, dan Gabitril" Cephalon.