Official Company Name: Merck & Co., Inc.
Stock Symbol: MRK
Stock Market: New York Stock Exchange - NYSE
Currency: United States dollar - USD
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Merck & Company, Inc., known as Merck Sharp & Dohme, or MSD, outside the United States and Canada, is one of the largest pharmaceutical companies in the world. Founded in 1891 in the US, and independent since World War I from its parent company, now one of the largest companies in Germany, Merck provides prescription medicines, vaccines, biologic therapies, and animal health products.