WHITEHOUSE STATION, N.J.--(BUSINESS WIRE)--Merck & Co., Inc. priced today a $2.5 billion public offering of senior unsecured notes. The notes include:
$1.0 billion of 1.100% notes due 2018
$1.0 billion of 2.400% notes due 2022
$500.0 million of 3.600% notes due 2042
