COLLEEN F. ARNOLD

LIMITED POWER OF ATTORNEY FOR

SECTION 16 REPORTING OBLIGATIONS

I hereby make, constitute and appoint each of Ivan K. Fong, John M.

Adams, Jr., Aneezal H. Mohamed and James E. Barnett, each acting

individually, as the undersigned's true and lawful attorney-in-fact, with

full power and authority as hereinafter described on behalf of and in the

name, place and stead of the undersigned to: (1) prepare, execute,

acknowledge, deliver and file Forms 3, 4, and 5 (including any

amendments thereto) with respect to the securities of Cardinal Health,

Inc. an Ohio corporation (the "Company"), with the United States

Securities and Exchange Commission (the "SEC"), any national securities

exchanges and the Company, as considered necessary or advisableunder

Section 16(a) of the United States Securities Exchange Act of 1934 and

the rules and regulations promulgated thereunder, as amended from time

to time (the "Exchange Act"); (2) prepare and execute in the undersigned's

name and on the undersigned's behalf, and to submit to the SEC a Form ID,

including amendments thereto, and any other documents necessary or

appropriate to obtain codes and passwords enabling the undersigned to

make electronic filings with the SEC of reports required by Section 16(a)

Of the Securities Exchange Act of 1934 or any rule or regulation of the

SEC; (3) prepare, execute, acknowledge, deliver and file Form 144s

(including any amendments or supplements thereto) with respect to the

sale of securities of the Company by the undersigned, with the SEC, any

national securities exchanges and the Company, as considered necessary or

advisable under Rule 144 of the Securities Act of 1933 and the rules and

regulations promulgated thereunder, as amended from time to time; (4)seek

or obtain, as the undersigned's representative and on the

undersigned's behalf, information on transactions in the Company's

securities from any third party, including brokers, employee benefit

plan administrators and trustees, and the undersigned hereby authorizes

any such person to release any such information to the undersigned and

approves and ratifies any such release of information; and (5) perform

any and all other acts which in the discretion of such attorney-in-fact

are necessary or desirable for and on behalf of the undersigned in

connection with the foregoing.  The undersigned acknowledges that: (1)

this Power of Attorney authorizes, but does not require, each such

attorney-in-fact to act in their discretion on information provided to

such attorney-in-fact without independent verification of such

information; (2) any documents prepared and/or executed by either such

attorney-in-fact on behalf of the undersigned pursuant to this Limited

Power of Attorney will be in such form and will contain such information and

disclosure as such attorney-in-fact, in his or her discretion, deems

necessary or desirable;  (3) neither the Company nor any such attorney-

in-fact assumes (i) any liability for the undersigned's responsibility to

comply with the requirement of the Exchange Act, (ii) any liability of

the undersigned for any failure to comply with such requirements, or

(iii) any obligation or liability of the undersigned for profit

disgorgement under Section 16(b) of the Exchange Act; and (4) this

Power of Attorney does not relieve the undersigned from responsibility

for compliance with the undersigned's obligations under the Exchange

Act, including without limitation the reporting requirements under

Section 16 of the Exchange Act.  The undersigned hereby gives and

grants each of the foregoing attorneys-in-fact full power and authority

to do and perform all and every act and thing whatsoever required,

necessary or appropriate to be done in connection with the undersigned

and the undersigned also hereby ratifies all that each such attorney-in-

fact shall lawfully do or cause to be done by virtue of this Limited Power

of Attorney.  This Power of Attorney shall remain in full force and effect

until revoked by the undersigned in a signed writing delivered to each such

attorney-in-fact. IN WITNESS WHEREOF, the undersigned has caused this Power

of Attorney to be executed as of this 7th day of August, 2007.

/s/ Colleen F. Arnold

Signature

Colleen F. Arnold

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