Company:  MCKESSON CORP (MCK)
Form Type:  S-8
Filing Date:  5/3/2012 
CIK:  0000927653 
Address:  ONE POST ST
MCKESSON PLAZA
 
City, State, Zip:  SAN FRANCISCO, California 94104 
Telephone:  (415) 983-8300 
Fiscal Year:  03/31 
Last Trade
Last Trade: 
$116.99  
Change: 
-0.29 (-0.25%)  
Trade Time: 
12:01 PM EST  
Market Cap: 
$26.51B
Description of Business
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  FORM S-8
    CALCULATION OF REGISTRATION FEE
    PART I
      Item 1. Plan Information
    PART II
      Item 3. Incorporation of Certain Documents by Reference
    Item 4. Description of Securities
    Item 5. Interests of Named Experts and Counsel
      Item 6. Indemnification of Directors and Officers
      Item 7. Exemption from Registration Claimed
      Item 8. Exhibits
      Item 9. Undertakings
    SIGNATURES
  EXHIBIT 5.1
  EXHIBIT 23.2
    CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
  EXHIBIT 24.1
    POWER OF ATTORNEY