PARSIPPANY, N.J.--(BUSINESS WIRE)--The Medicines Company (NASDAQ: MDCO) today announced that Glyn R. Parkin has joined the Company as Senior Vice President, International Operations. Working with other senior leaders of the Company, Parkin will be responsible for the design, implementation and leadership of the international organization. He will be responsible for the establishment of functioning, capable organizations and business operations in new territories, and then transitioning those operations to the current business unit structure of the organization.