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) : June 21, 2007

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	94104
(Address of principal executive offices)	(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))

Item 7.01    Regulation FD Disclosure.

On June 21, 2007, in connection with its annual Investor Day in New York City, McKesson Corporation issued a press release reaffirming its financial outlook for the fiscal year ending March 31, 2008. A copy of the press release is attached hereto as Exhibit 99.1. This information shall not be deemed “filed” 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.

Item 9.01    Financial Statements and Exhibits.

     (d)   Exhibits.

Exhibit No.	Description
99.1	McKesson Corporation June 21, 2007 Press Release

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: June 21, 2007

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

EXHIBIT INDEX

Exhibit No.	Description
99.1	McKesson Corporation June 21, 2007 Press Release