SECURITIES AND EXCHANGE COMMISSION

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of
The Securities Exchange Act of 1934

May 4, 2004
Date of Report (Date of earliest event reported)

McKESSON CORPORATION

Delaware
(State or other jurisdiction of incorporation)

McKesson Plaza
One Post Street, San Francisco, CA 94104
Address of Principal Executive Offices

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

Item 5. Other Events and Required FD Disclosure.

Employment Litigation Verdict

On May 3, 2004, a Yolo County, California jury rendered a $15 million punitive damages verdict against McKesson Corporation (the “Company”) in an employment action entitled Charlene Roby vs. McKesson Corporation, (Action No. CV 01-573). The punitive damages verdict followed the same jury’s April 30, 2004, award of $3.5 million in compensatory damages against the Company on plaintiff’s claims of wrongful termination, disability discrimination and harassment. An additional $500,000 was awarded against an employee of the Company. The Company believes that these verdicts are not supported by the facts or the law and intends to vigorously pursue all available options to reverse or reduce these verdicts, including appeal, if necessary.

2

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.

3