McKesson Corporation (NYSE:MCK), a leading North American healthcare services and information technology company, announced today that McKesson has launched the voluntary public takeover offer for the outstanding shares of Celesio (“Takeover Offer”) and tender offers for the outstanding convertible bonds of Celesio (“Tender Offers”) through its indirect wholly-owned subsidiary Dragonfly GmbH & Co. KGaA, in connection with the announcement on October 24, 2013 of McKesson’s agreement to acquire Celesio. The publication of the offer document for the Takeover Offer has been approved by the Bundesanstalt für Finanzdienstleistungsaufsicht and is now available on www.GlobalHealthcareLeader.com in German and in an English translation. Celesio shareholders can now accept the Takeover Offer and tender their shares in Celesio at the offer price of €23 per share. The acceptance period will end on January 9, 2014 at 24:00 (CET) / 18:00 (EST). In parallel to the Takeover Offer, McKesson launched the Tender Offers for Celesio’s outstanding convertible bonds at a price corresponding to the value of the underlying shares implied by a €23 per share offer price, which equals €53,117.78 per bond for Celesio’s convertible bond due 2014 (principal amount of €50,000) and €120,798.32 per bond for Celesio’s convertible bond due 2018 (principal amount of €100,000). The acceptance period for the Tender Offers will also end on January 9, 2014 at 24:00 (CET) / 18:00 (EST). The offer document for the Tender Offers is also available on www.GlobalHealthcareLeader.com in German and in an English translation. About McKesson Corporation McKesson Corporation, currently ranked 14 th on the FORTUNE 500, is a healthcare services and information technology company dedicated to making the business of healthcare run better. McKesson partners with payers, hospitals, physician offices, pharmacies, pharmaceutical companies and others across the spectrum of care to build healthier organizations that deliver better care to patients in every setting. McKesson helps its customers improve their financial, operational, and clinical performance with solutions that include pharmaceutical and medical-surgical supply management, healthcare information technology, and business and clinical services. For more information, visit www.mckesson.com. THIS PRESS RELEASE IS NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION, IN WHOLE OR IN PART, IN, INTO OR FROM ANY JURISDICTION WHERE TO DO SO WOULD CONSTITUTE A VIOLATION OF THE RELEVANT LAWS OF SUCH JURISDICTION.The Takeover Offer and the Tender Offers will be subject to the full terms and conditions to be set out in the respective offer document.Disclaimer This press release is for information purposes only and does not constitute an invitation to make an offer to sell Celesio shares. This announcement does not constitute an offer to purchase Celesio shares and is not for the purposes of McKesson making any representations or entering into any other binding legal commitments.