I have had the 2mg xanax for years now, and they started off with xanax printed on the top of the tri-score tab, then they changed to U 94 imprinted on the tablet ( 2mg ) , Now i have the 1mg tab with Upjohn 90 on the top of the oval shaped tablet ( blue ). Taking the 1mg tab feels like taking three of the 2mg tabs, it's very confusing please help?