-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 BIz08yTjrx8spCVvdyAWghBvJwN88R50Ud6kUI+WAJeCnn38xwDYDtFkuhc9KPUv
 wvDXN+pQwHXK3CQIPqV+kw==

<SEC-DOCUMENT>0001207007-04-000005.txt : 20040106
<SEC-HEADER>0001207007-04-000005.hdr.sgml : 20040106
<ACCEPTANCE-DATETIME>20040106215724
ACCESSION NUMBER:		0001207007-04-000005
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20040102
FILED AS OF DATE:		20040106

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			NAPIER JAMES V
		CENTRAL INDEX KEY:			0001188422

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13252
		FILM NUMBER:		04511657

	MAIL ADDRESS:	
		STREET 1:		3355 LENOX ROAD
		STREET 2:		SUITE 750
		CITY:			ATLANTA
		STATE:			2Q
		ZIP:			30326

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MCKESSON CORP
		CENTRAL INDEX KEY:			0000927653
		STANDARD INDUSTRIAL CLASSIFICATION:	WHOLESALE-DRUGS PROPRIETARIES & DRUGGISTS' SUNDRIES [5122]
		IRS NUMBER:				943207296
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0331

	BUSINESS ADDRESS:	
		STREET 1:		ONE POST ST
		STREET 2:		MCKESSON PLAZA
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94104
		BUSINESS PHONE:		4159838300

	MAIL ADDRESS:	
		STREET 1:		ONE POST ST
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94104

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MCKESSON HBOC INC
		DATE OF NAME CHANGE:	19990115

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MCKESSON CORP
		DATE OF NAME CHANGE:	19950209

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SP VENTURES INC
		DATE OF NAME CHANGE:	19940728
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType><periodOfReport>2004-01-02</periodOfReport>
    <issuer>
        <issuerCik>0000927653</issuerCik>
        <issuerName>MCKESSON CORP</issuerName>
        <issuerTradingSymbol>MCK</issuerTradingSymbol></issuer><reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001188422</rptOwnerCik>
            <rptOwnerName>NAPIER JAMES V</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>ONE POST STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SAN FRANCISCO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94104</rptOwnerZipCode>
            <rptOwnerStateDescription>GEORGIA</rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>1</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther></reportingOwnerRelationship></reportingOwner><derivativeTable><derivativeTransaction><securityTitle><value>Restricted Stock Units</value></securityTitle><conversionOrExercisePrice><value>0</value></conversionOrExercisePrice><transactionDate><value>2004-01-02</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>156</value><footnoteId id="F1"/></transactionShares><transactionPricePerShare><value>0</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><footnoteId id="F2"/></exerciseDate><expirationDate><footnoteId id="F2"/></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurity
Title><underlyingSecurityShares><value>156</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>1599</value><footnoteId id="F3"/></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></derivativeTransaction></derivativeTable><footnotes><footnote id="F1">Restricted Stock Units credited to reporting person pursuant to his/her irrevocable election under the Issuer's 1997 Non-Employee Directors' Equity Compensation and Deferral Plan regarding the directors' annual retainer.</footnote><footnote id="F2">The units are to be distributed, as elected, after the reporting person leaves the Board.</footnote><footnote id="F3">Includes dividend equivalents paid through January 2, 2004.</footnote></footnotes><remarks/><ownerSignature><signatureName>Lorna Hutcheson, Attorney-in-Fact</signatureName><signa
tureDate>2004-01-06</signatureDate></ownerSignature></ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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