MCKESSON CORP — Regulatory Filings 2011

May 3, 2011

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UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 8-K

CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): May 3, 2011

McKesson Corporation

(Exact name of registrant as specified in its charter)

Delaware (State or other jurisdiction of incorporation) 1-13252 (Commission File Number) 94-3207296 (I.R.S. Employer Identification No.)

McKesson Plaza, One Post Street, San Francisco, California (Address of principal executive offices) 94104 (Zip Code)

Registrant’s telephone number, including area code: (415) 983-8300

Not Applicable (Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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link2 "Item 2.02 Results of Operations and Financial Condition."

Item 2.02 Results of Operations and Financial Condition.

On May 3, 2011, McKesson Corporation (the “Company”) announced via press release the Company’s preliminary results for the fourth quarter and fiscal year ended March 31, 2011. A copy of the Company’s press release is attached hereto as Exhibit 99.1.

The information contained in this Form 8-K, including Exhibit 99.1, is furnished to the Securities and Exchange Commission (the “Commission”), but shall not be deemed “filed” with the Commission for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

link2 "Item 9.01 Financial Statements and Exhibits."

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

Exhibit No.	Description
99.1	Press Release issued by the Company dated May 3, 2011.

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link1 " SIGNATURES"

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: May 3, 2011

McKesson Corporation
By:	/s/ Jeffrey C. Campbell
	Jeffrey C. Campbell
	Executive Vice President and Chief Financial Officer

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link1 " EXHIBIT INDEX"

EXHIBIT INDEX

Exhibit No.	Description
99.1	Press
Release issued by the Company dated May 3, 2011.

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