Generics There was an active day for US generics drugmaker Watson Pharmaceuticals (NYSE: WPI), first, confirming that its subsidiary, Watson Laboratories, had filed an Abbreviated New Drug Application with the US Food and Drug Administration seeking approval to market rivastigmine transdermal system patches, 4.6mg/24hr and 9.5mg/24hr, a generic version of Swiss major Novartis' Exelon Patch, which is used to treat people with mild to moderate dementia associated with Alzheimer's or Parkinson's disease. 13 November 2011