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EXHIBIT 24.1
POWER OF ATTORNEY
KNOW ALL MEN BY THESE PRESENTS THAT the undersigned directors and
officers of McKesson HBOC, Inc., a Delaware corporation (the "Company") do
hereby constitute and appoint Ivan D. Meyerson and Kristina Veaco his or her
true and lawful attorney and agent, each with full power and authority (acting
alone and without the other) to execute in the name and on behalf of the
undersigned as such Director and/or Officer, a Registration Statement on Form
S-8 under the Securities Act of 1933, as amended, with respect to the
registration of shares of the Company's Common Stock, par value $.01 per share,
that may be issued by the Company under the 1999 MediVation, Inc. Stock Option
and Grant Plan and to execute any and all amendments to such Registration
Statement, whether filed prior or subsequent to the time such Registration
Statement becomes effective. The undersigned hereby grants unto such attorneys
and agents, and each of them, full power of substitution and revocation in the
premises and hereby ratifies and confirms all that such attorneys and agents may
do or cause to be done by virtue of these presents.
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<S> <C>
/s/ Tully M. Friedman /s/ James V. Napier
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Director Director
/s/ William R. Graber /s/ David S. Pottruck
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Senior Vice President Director
and Chief Financial Officer
/s/ John H. Hammergren /s/ Carl E. Reichardt
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Co-President and Director
Co-Chief Executive Officer and Director
(Co-Principal Executive Officer)
/s/ M. Christine Jacobs /s/ Alan Seelenfreund
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Director Chairman of the Board and Director
/s/ Martin M. Koffel /s/ Jane E. Shaw
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Director Director
/s/ David L. Mahoney
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Co-President and
Co-Chief Executive Officer and Director
(Co-Principal Executive Officer)
/s/ Gerald E. Mayo
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Director
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Dated: July 26, 2000
