adcelannotate = {"mobilepaywallcategory" : "MOBILE_PREM-BUSINESS","nativepaywallcategory" : "NATIVE_PREM-BUSINESS"};Valeant Pharmaceuticals fell short of profit expectations in the fourth quarter and slashed its guidance for the current quarter and the full year, citing lower sales across many of its businesses. Shares slumped 16.5 percent in premarket trading ahead of the opening bell Tuesday.