I live here https://www.friendsofbus142.com/stmap_37whvkrr.html?levitra.spiriva.antabuse metoprolol 95 maximaldosis To determine if it's working, Merck checks on the flow of amyloid beta 40 and 42 in cerebral spinal fluid, key biomarkers for the study. Over the course of 7 days of treatment, investigators say they could see a noted, dose-dependent response in protein levels in the fluid. For the top 60 mg dose, investigators say they found an 84% drop in ab40, according to a spokesperson for Merck. There was an 81% drop for ab42,