The Alzheimer's epidemic: Where we stand By: CNBC.com News July 11, 2014 at 11:45 AM EDT Although treatments for Alzheimer's have struggled, drugmakers are still working in the space, with 67 medicines currently in development. Read More >> Related Stocks: Biogen Idec Eli Lilly Gsk Plc ADR Johnson & Johnson Merck & Co Pfizer Rogers Corp