WHITEHOUSE STATION, N.J.--(BUSINESS WIRE)-- Merck (NYSE:MRK - News), known as MSD outside the United States and Canada, today announced financial results for the fourth quarter and full year of 2010. The company reported non-GAAP (generally accepted accounting principles) earnings per share (EPS) for the fourth quarter of $0.88, which excludes purchase accounting adjustments, restructuring costs and merger-related expenses. The purchase accounting adjustments include a $1.7 billion pre-tax charge related to its vorapaxar clinical research program. Fourth quarter GAAP EPS was $(0.17). Merck also announced full year 2010 non-GAAP EPS of $3.42, excluding certain items, and full year GAAP EPS of $0.28.