COMMERCIAL PAPER DEALER AGREEMENT between MCKESSON CORPORATION, as Issuer and , as Dealer

Exhibit 10.19

4(a)(2) PROGRAM

between

MCKESSON CORPORATION,
as Issuer

and

,
as Dealer

Concerning Notes to be issued pursuant to an Issuing and Paying Agency Agreement dated as of between the Issuer and , as Issuing and Paying Agent

Dated as of

Commercial Paper Dealer Agreement

4(a)(2) Program

This agreement (the “Agreement”) sets forth the understandings between the Issuer and the Dealer, each named on the cover page hereof, in connection with the issuance and sale by the Issuer of its short-term promissory notes (the “Notes”) through the Dealer.

Certain terms used in this Agreement are defined in Section 6 hereof.

The Addendum to this Agreement, and any Annexes or Exhibits described in this Agreement or such Addendum, are hereby incorporated into this Agreement and made fully a part hereof.

1. Offers, Sales and Resales of Notes.

1.1 While (i) the Issuer has and shall have no obligation to sell the Notes to the Dealer or to permit the Dealer to arrange any sale of the Notes for the account of the Issuer, and (ii) the Dealer has and shall have no obligation to purchase the Notes from the Issuer or to arrange any sale of the Notes for the account of the Issuer, the parties hereto agree that in any case where the Dealer purchases Notes from the Issuer, or arranges for the sale of Notes by the Issuer, such Notes will be purchased or sold by the Dealer in reliance on the representations, warranties, covenants and agreements of the Issuer contained herein or made pursuant hereto and on the terms and conditions and in the manner provided herein.

1.2 So long as this Agreement shall remain in effect, and in addition to the limitations contained in Section 1.7 hereof, the Issuer shall not, without the consent of the Dealer, offer, solicit or accept offers to purchase, or sell, any Notes except (a) in transactions with one or more dealers which may from time to time after the date hereof become dealers with respect to the Notes by executing with the Issuer one or more agreements which contain provisions substantially identical to those contained in Section 1 of this Agreement, of which the Issuer hereby undertakes to provide the Dealer prompt notice or (b) in transactions with the other dealers listed on the Addendum hereto, which are executing agreements with the Issuer which contain provisions substantially identical to Section 1 of this Agreement contemporaneously herewith or prior to the offer, solicitation or acceptance of an offer to purchase or sell any Notes. In no event shall the Issuer offer, solicit or accept offers to purchase, or sell, any Notes directly on its own behalf in transactions with persons other than broker-dealers as specifically permitted in this Section 1.2.

1.3 The Notes shall be in a minimum denomination of $250,000 or integral multiples of $1,000 in excess thereof, will bear such interest rates, if interest bearing, or will be sold at such discount from their face amounts, as shall be agreed upon by the Dealer and the Issuer, shall have a maturity not exceeding 397 days from the date of issuance and may have such terms as are specified in Exhibit C hereto or the Private Placement Memorandum. The Notes shall not contain any provision for extension, renewal or automatic “rollover.”

1.4 The authentication and issuance of, and payment for, the Notes shall be effected in accordance with the Issuing and Paying Agency Agreement, and the Notes shall be book-entry notes evidenced by one or more Master Notes, in the form or forms annexed to the Issuing and Paying Agency Agreement.

1.5 If the Issuer and the Dealer shall agree (which agreement may be entered into by telephonic communication, confirmed in writing or by e-mail) on the terms of the purchase of any Note by the Dealer or the sale of any Note arranged by the Dealer (including, but not limited to, agreement with respect to the date of issue, purchase price, principal amount, maturity and, where applicable, interest rate or interest rate index and margin (in the case of interest-bearing Notes) or discount thereof (in the case of Notes issued on a discount basis), and appropriate compensation for the Dealer’s services hereunder) pursuant to this Agreement, the Issuer shall cause such Note to be issued and delivered in accordance with the terms of the Issuing and Paying Agency Agreement and payment for such Note shall be made by the purchaser thereof, either directly or through the Dealer, to the Issuing and Paying Agent, for the account of the Issuer. Except as otherwise agreed, in the event that the Dealer is acting as an agent and a purchaser shall either fail to accept delivery of or make payment for a Note on the date fixed for settlement, the Dealer shall promptly notify the Issuer, and if the Dealer has theretofore paid the Issuer for the Note, the Issuer will promptly return such funds to the Dealer upon notice of such failure. If such failure occurred for any reason other than default by the Dealer, the Issuer shall reimburse the Dealer on an equitable basis as determined by the parties for the Dealer’s loss of the use of such funds for the period such funds were credited to the Issuer’s account.

1.6 The Dealer and the Issuer hereby establish and agree to observe the following procedures in connection with offers, sales and subsequent resales or other transfers of the Notes:

(a) Offers and sales of the Notes by or through the Dealer shall be made only to: (i) investors reasonably believed by the Dealer to be Qualified Institutional Buyers, Institutional Accredited Investors and (ii) non-bank fiduciaries or agents that will be purchasing Notes for one or more accounts, each of which is reasonably believed by the Dealer to be an Institutional Accredited Investor.

(b) Resales and other transfers of the Notes by the holders thereof shall be made only in accordance with the restrictions in the legend described in clause (e) below.

(c) No general solicitation or general advertising shall be used in connection with the offering of the Notes. Without limiting the generality of the foregoing, without the prior written approval of the Dealer, the Issuer shall not issue any press release, make any other statement to any member of the press making reference to the Notes, the offer or sale of the Notes or this Agreement or place or publish any “tombstone” or other advertisement relating to the Notes or the offer or sale of the Notes. To the extent permitted by applicable securities laws, the Issuer shall (i) omit the name of the Dealer from any publicly available filing by the Issuer that makes reference to the Notes, the offer or sale of the Notes or this Agreement, (ii) not include a copy of this Agreement in any such filing or as an exhibit thereto and (iii) redact the Dealer’s name and any contact or other information that could identify the Dealer from any agreement or other information included in such filing.

(d) No sale of Notes to any one purchaser shall be for less than $250,000 principal or face amount, and no Note shall be issued in a smaller principal or face amount. If the purchaser is a non-bank fiduciary acting on behalf of others, each person for whom such purchaser is acting must purchase at least $250,000 principal or face amount of Notes.

(e) Offers and sales of the Notes shall be subject to the restrictions described in the legend appearing in Exhibit A hereto. A legend substantially to the effect of such Exhibit A shall appear as part of the Private Placement Memorandum used in connection with offers and sales of Notes hereunder, as well as on each Master Note representing book-entry Notes offered and sold pursuant to this Agreement.

(f) Prior to or concurrent with any offer and sale of any Notes, the Dealer shall make available to each purchaser of Notes for which it has acted as the dealer a copy of the then-current Private Placement Memorandum unless such purchaser has previously had made available to it a copy of the Private Placement Memorandum as then in effect. The Private Placement Memorandum shall expressly state that any person to whom Notes are offered shall have an opportunity to ask questions of, and receive information from, the Issuer and the Dealer and shall provide the names, addresses and telephone numbers of the persons from whom information regarding the Issuer may be obtained.

(g) The Issuer agrees for the benefit of the Dealer and each of the holders and prospective purchasers from time to time of the Notes that, if at any time the Issuer shall not be subject to Section 13 or 15(d) of the Exchange Act, the Issuer will furnish, upon request and at its expense, to the Dealer and to holders and prospective purchasers of Notes information required by Rule 144A(d)(4)(i) in compliance with Rule 144A(d).

(h) In the event that the Issuer becomes aware that any Note offered or to be offered by the Dealer would be ineligible for resale under Rule 144A, the Issuer shall immediately notify the Dealer (by telephone, confirmed in writing, or by e-mail) of such fact and shall promptly prepare and deliver to the Dealer an amendment or supplement to the Private Placement Memorandum describing the Notes that are ineligible, the reason for such ineligibility and any other relevant information relating thereto.

(i) The Issuer represents that it is not currently issuing commercial paper in the United States market in reliance upon the exemption provided by Section 3(a)(3) of the Securities Act. The Issuer agrees that, if it shall issue commercial paper after the date hereof in reliance upon such exemption (a) the proceeds from the sale of the Notes will be segregated from the proceeds of the sale of any such commercial paper by being placed in a separate account; (b) the Issuer will institute appropriate corporate procedures to ensure that the offers and sales of notes issued by the Issuer pursuant to the Section 3(a)(3) exemption are not integrated with offerings and sales of Notes hereunder; and (c) the Issuer will comply with each of the requirements of Section 3(a)(3) of the Securities Act in selling commercial paper or other short-term debt securities other than the Notes in the United States.

1.7 The Issuer hereby represents and warrants to the Dealer, in connection with offers, sales and resales of Notes, as follows:

(a) The Issuer hereby confirms to the Dealer that (except as permitted by Section 1.6(i)) within the preceding six months neither the Issuer nor any person other than the Dealer or the other dealers referred to in Section 1.2 hereof acting on behalf of the Issuer has offered or sold any Notes, or any substantially similar security of the Issuer (including, without limitation, medium-term notes issued by the Issuer), to, or solicited offers to buy any such security from, any person other than the Dealer or the other dealers referred to in Section 1.2 hereof. The Issuer also agrees that (except as permitted by Section 1.6(i)), as long as the Notes are being offered for sale by the Dealer and the other dealers referred to in Section 1.2 hereof as contemplated hereby and until at least six months after the offer of Notes hereunder has been terminated, neither the Issuer nor any person other than the Dealer or the other dealers referred to in Section 1.2 hereof (except as contemplated by Section 1.2 hereof) will offer the Notes or any substantially similar security of the Issuer for sale to, or solicit offers to buy any such security from, any person other than the Dealer or the other dealers referred to in Section 1.2 hereof, it being understood that such agreement is made with a view to bringing the offer and sale of the Notes within the exemption provided by Section 4(a)(2) of the Securities Act and shall survive any termination of this Agreement. The Issuer hereby represents and warrants that it has not taken or omitted to take, and will not take or omit to take, any action that would cause the offering and sale of Notes hereunder to be integrated with any other offering of securities, whether such offering is made by the Issuer or on behalf of the Issuer by some other party or parties.

(b) The Issuer represents and agrees that the proceeds of the sale of the Notes are not currently contemplated to be used for the purpose of buying, carrying or trading securities within the meaning of Regulation T and the interpretations thereunder by the Board of Governors of the Federal Reserve System. In the event that the Issuer determines to use such proceeds for the purpose of buying, carrying or trading securities, whether in connection with an acquisition of another company or otherwise, the Issuer shall give the Dealer at least five business days’ prior written notice to that effect. The Issuer shall also give the Dealer prompt notice of the actual date that it commences to purchase securities with the proceeds of the Notes. Thereafter, in the event that the Dealer purchases Notes as principal and does not resell such Notes on the day of such purchase, to the extent necessary to comply with Regulation T and the interpretations thereunder, the Dealer will sell such Notes either (i) only to offerees it reasonably believes to be Qualified Institutional Buyers or to Qualified Institutional Buyers it reasonably believes are acting for other Qualified Institutional Buyers, in each case in accordance with Rule 144A or (ii) in a manner which would not cause a violation of Regulation T and the interpretations thereunder.

2. Representations and Warranties of the Issuer.

The Issuer represents and warrants that:

2.1 The Issuer is a corporation duly organized, validly existing and in good standing under the laws of the jurisdiction of its incorporation and has all the requisite power and authority to execute, deliver and perform its obligations under the Notes, this Agreement and the Issuing and Paying Agency Agreement.

2.2 This Agreement and the Issuing and Paying Agency Agreement have been duly authorized, executed and delivered by the Issuer and constitute legal, valid and binding obligations of the Issuer enforceable against the Issuer in accordance with their terms subject to applicable bankruptcy, insolvency and similar laws affecting creditors’ rights generally, and subject, as to enforceability, to general principles of equity (regardless of whether enforcement is sought in a proceeding in equity or at law).

2.3 The Notes have been duly authorized, and when issued as provided in the Issuing and Paying Agency Agreement, the Notes will be duly and validly issued and will constitute legal, valid and binding obligations of the Issuer enforceable against the Issuer in accordance with their terms subject to applicable bankruptcy, insolvency and similar laws affecting creditors’ rights generally, and subject, as to enforceability, to general principles of equity (regardless of whether enforcement is sought in a proceeding in equity or at law).

2.4 The offer and sale of the Notes in the manner contemplated hereby do not require registration of the Notes under the Securities Act, pursuant to the exemption from registration contained in Section 4(a)(2) thereof, and no indenture in respect of the Notes is required to be qualified under the Trust Indenture Act of 1939, as amended.

2.5 The Notes will rank at least pari passu with all other unsecured and unsubordinated indebtedness of the Issuer.

2.6 No consent or action of, or filing or registration with, any governmental or public regulatory body or authority, including the SEC, is required to authorize, or is otherwise required in connection with the execution, delivery or performance of, this Agreement, the Notes or the Issuing and Paying Agency Agreement, except as may be required by the securities or Blue Sky laws of the various states in connection with the offer and sale of the Notes.

2.7 Neither the execution and delivery of this Agreement and the Issuing and Paying Agency Agreement, nor the issuance of the Notes in accordance with the Issuing and Paying Agency Agreement, nor the fulfillment of or compliance with the terms and provisions hereof or thereof by the Issuer, will (i) result in the creation or imposition of any mortgage, lien, charge or encumbrance of any nature whatsoever upon any of the properties or assets of the Issuer, or (ii) violate or result in a breach or a default under any of the terms of the Issuer’s charter documents or by-laws, any material contract or instrument to which the Issuer is a party or by which it or its property is bound, or any law or regulation, or any order, writ, injunction or decree of any court or government instrumentality, to which the Issuer is subject or by which it or its property is bound, which breach or default might have a material adverse effect on the condition (financial or otherwise), or operations of the Issuer or the ability of the Issuer to perform its obligations under this Agreement, the Notes or the Issuing and Paying Agency Agreement.

2.8 Except as disclosed in the Company Information, there is no litigation or governmental proceeding pending, or to the knowledge of the Issuer threatened, against or affecting the Issuer or any of its subsidiaries which might result in a material adverse change in the condition (financial or otherwise) or operations of the Issuer or the ability of the Issuer to perform its obligations under this Agreement, the Notes or the Issuing and Paying Agency Agreement.

2.9 The Issuer is not an “investment company” within the meaning of the Investment Company Act of 1940, as amended.

2.10 Neither the Private Placement Memorandum nor the Company Information contains any untrue statement of a material fact or omits to state a material fact required to be stated therein or necessary to make the statements therein, in light of the circumstances under which they were made, not misleading.

2.11 Policies and procedures have been implemented and maintained by or on the Issuer’s behalf that are designed to achieve compliance by it and its Subsidiaries and its directors, officers, employees and agents with Anti-Corruption Laws and applicable Sanctions, giving due regard to the nature of such person’s business and activities. The Issuer and its Subsidiaries, and to the knowledge of the Issuer their respective directors, officers and employees, are in compliance with Anti-Corruption Laws and applicable Sanctions, in each case in all material respects. Neither it nor any of its Subsidiaries nor, to its knowledge any of their respective directors, officers, employees, agents or affiliates, is a person that is, or is owned or controlled by any person that is: (i) the subject of any international economic sanctions administered or enforced by the U.S. Department of Treasury’s Office of Foreign Assets Control, the U.S. Department of State, the United Nations Security Council, the European Union, Her Majesty’s Treasury or any governmental authority or regulatory body in Canada (collectively, “Sanctions”), or (ii) located, organized or resident in a country or territory that is, or whose government is, the subject of Sanctions.

2.12 The Issuer shall not, directly or indirectly, use the proceeds of any Notes, or lend, contribute or otherwise make available such proceeds to any Subsidiary, joint venture partner or other person, in each case, (A) to fund any activities or business of or with any person, or in any country or territory, that, at the time of such funding, is, or whose government is, the subject of Sanctions, or (ii) in any other manner that would result in a violation of Sanctions by any person.

2.13 Except as would not, individually or in the aggregate, have a material adverse effect, the operations of the Issuer and its Subsidiaries are conducted in compliance with applicable financial recordkeeping and reporting requirements of the Currency and Foreign Transactions Reporting Act of 1970, as amended, the money laundering statutes of all applicable jurisdictions, the rules and regulations thereunder and any applicable related or similar rules, regulations or guidelines issued, administered or enforced by any governmental agency (collectively, the “Money Laundering Laws”) and no action, suit or proceeding by or before any court or governmental agency, authority or regulatory body or any arbitrator involving the Issuer or any of its Subsidiaries with respect to the Money Laundering Laws is pending or, to the knowledge of the Issuer, threatened.

2.14 Each (a) issuance of Notes by the Issuer hereunder and (b) amendment or supplement of the Private Placement Memorandum shall be deemed a representation and warranty by the Issuer to the Dealer, as of the date thereof, that, both before and after giving effect to such issuance and after giving effect to such amendment or supplement, (i) the representations and warranties given by the Issuer set forth in this Section 2 remain true and correct on and as of such date as if made on and as of such date, (ii) in the case of an issuance of Notes, the Notes being issued on such date have been duly and validly issued and constitute legal, valid and binding obligations of the Issuer, enforceable against the Issuer in accordance with their terms, subject to applicable bankruptcy, insolvency and similar laws affecting creditors’ rights generally and subject, as to enforceability, to general principles of equity (regardless of whether enforcement is sought in a proceeding in equity or at law), (iii) in the case of an issuance of Notes, since the date of the most recent Private Placement Memorandum, there has been no material adverse change in the condition (financial or otherwise) or operations of the Issuer which could reasonably be expected to affect the Issuer’s ability to perform its obligations hereunder or under the Notes which has not been disclosed to the Dealer in writing or publicly available and (iv) the Issuer is not in default of any of its obligations hereunder, under the Notes or under the Issuing and Paying Agency Agreement.

3. Covenants and Agreements of the Issuer.

The Issuer covenants and agrees that:

3.1 The Issuer will give the Dealer prompt notice (but in any event prior to any subsequent issuance of Notes hereunder) of any amendment to, modification of or waiver with respect to, the Notes or the Issuing and Paying Agency Agreement, including a complete copy of any such amendment, modification or waiver.

3.2 The Issuer shall, whenever there shall occur any change in the Issuer’s condition (financial or otherwise), or operations or any development or occurrence in relation to the Issuer that would be material to holders of the Notes or potential holders of the Notes (including any downgrading or receipt of any notice of intended or potential downgrading or any review for potential change in the rating accorded any of the Issuer’s securities by any nationally recognized statistical rating organization which has published a rating of the Notes), promptly, and in any event prior to any subsequent issuance of Notes hereunder, notify the Dealer (by telephone, confirmed in writing, or by e-mail) of such change, development, or occurrence, provided, that the Issuer shall not be required to notify the Dealer of any such change, development or occurrence that has been publicly disclosed either on the Company’s website or on the SEC’s website or otherwise.

3.3 The Issuer shall from time to time furnish to the Dealer such information (other than confidential or proprietary information that would not otherwise have been disclosed to the public pursuant to applicable securities laws) as the Dealer may reasonably request, including, without limitation, any press releases or material provided by the Issuer to any national securities exchange or rating agency, regarding (i) the Issuer’s operations and financial condition, (ii) the due authorization and execution of the Notes, and (iii) the Issuer’s ability to pay the Notes as they mature. If the Issuer determines that any such information is material, non-public information, the Issuer and the Dealer shall agree on such procedures as the Issuer may reasonably request to safeguard the confidentiality of such information before it is required to furnish such information to the Dealer.

3.4 The Issuer will take all such action as the Dealer may reasonably request to ensure that each offer and each sale of the Notes will comply with any applicable state Blue Sky laws; provided, however, that the Issuer shall not be obligated to file any general consent to service of process or to qualify as a foreign corporation in any jurisdiction in which it is not so qualified or subject itself to taxation in respect of doing business in any jurisdiction in which it is not otherwise so subject.

3.5 The Issuer will not be in default of any of its payment obligations hereunder, under the Notes or under the Issuing and Paying Agency Agreement, or material nonpayment obligations under such agreements, at any time that any of the Notes are outstanding.

3.6 The Issuer shall not issue Notes hereunder until the Dealer shall have received (a) an opinion of counsel to the Issuer, addressed to the Dealer, satisfactory in form and substance to the Dealer, (b) a copy of the executed Issuing and Paying Agency Agreement as then in effect, (c) a copy of resolutions adopted by the Board of Directors of the Issuer, satisfactory in form and substance to the Dealer and certified by the Secretary or similar officer of the Issuer, authorizing execution and delivery by the Issuer of this Agreement, the Issuing and Paying Agency Agreement and the Notes and consummation by the Issuer of the transactions contemplated hereby and thereby, (d) prior to the issuance of any book-entry Notes represented by a Master Note, a copy of the executed Letter of Representations among the Issuer, the Issuing and Paying Agent and DTC and of the executed Master Note, (e) prior to the issuance of any Notes in physical form, a copy of such form (unless attached to this Agreement or the Issuing and Paying Agency Agreement), and (f) such other certificates, opinions, letters and documents as the Dealer shall have reasonably requested.

3.7 The Issuer shall reimburse the Dealer for all of the Dealer’s reasonable out-of-pocket expenses related to this Agreement, including reasonable expenses incurred in connection with its preparation and negotiation, and the transactions contemplated hereby (including, but not limited to, the printing and distribution of the Private Placement Memorandum), and, if applicable, provided that the Dealer’s counsel fees and out-of-pocket expenses do not exceed $10,000, for the reasonable fees and out-of-pocket expenses of the Dealer’s counsel.

3.8 The Issuer shall not file a Form D (as referenced in Rule 503 under the Securities Act) at any time in respect of the offer or sale of the Notes.

3.9 Without limiting any obligation of the Issuer pursuant to this Agreement to provide the Dealer with credit and financial information, the Issuer hereby acknowledges and agrees that the Dealer may share the Company Information and any other information or matters relating to the Issuer or the transactions contemplated hereby with affiliates of the Dealer, including, but not limited to, Bank of America, National Association and that such affiliates may likewise share information relating to the Issuer or such transactions with the Dealer.

4. Disclosure.

4.1 The Private Placement Memorandum and its contents (other than the Dealer Information) shall be the sole responsibility of the Issuer. The Private Placement Memorandum shall contain a statement expressly offering an opportunity for each prospective purchaser to ask questions of, and receive answers from, the Issuer concerning the offering of Notes and to obtain relevant additional information which the Issuer possesses or can acquire without unreasonable effort or expense.

4.2 The Issuer agrees to promptly furnish the Dealer the Company Information as it becomes available, provided that the Issuer shall not be required to furnish the Dealer any Company Information that is publicly available either on the Company’s website or on the SEC’s website or otherwise.

4.3 The Issuer further agrees that:

(a) The Issuer shall notify the Dealer promptly upon the occurrence of any event relating to or affecting the Issuer that would cause the Company Information then in existence to include an untrue statement of a material fact or to omit to state a material fact necessary in order to make the statements contained therein, in light of the circumstances under which they are made, not misleading.

(b) In the event that the Issuer gives the Dealer notice pursuant to Section 4.3(a) and the Dealer notifies the Issuer that it then has Notes it is holding in inventory, the Issuer shall promptly supplement or amend the Private Placement Memorandum so that the Private Placement Memorandum, as amended or supplemented, shall not contain an untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in light of the circumstances under which they were made, not misleading, and the Issuer shall make such supplement or amendment available to the Dealer.

(c) In the event that (i) the Issuer gives the Dealer notice pursuant to Section 4.3(a), (ii) the Dealer does not notify the Issuer that it is then holding Notes in inventory and (iii) the Issuer chooses not to promptly amend or supplement the Private Placement Memorandum in the manner described in clause (b) above, then all solicitations and sales of Notes shall be suspended until such time as the Issuer has so amended or supplemented the Private Placement Memorandum, and made such amendment or supplement available to the Dealer.

(d) Without limiting the generality of Section 4.3(a), the Issuer shall review, amend and supplement the Private Placement Memorandum on a periodic basis to ensure that the information, including financial information, provided in the Private Placement Memorandum does not contain an untrue statement of a material fact or omits to state a material fact necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading.

5. Indemnification and Contribution.

5.1 The Issuer will indemnify and hold harmless the Dealer, each individual, corporation, partnership, trust, association or other entity controlling the Dealer, any affiliate of the Dealer or any such controlling entity and their respective directors, officers, employees, partners, incorporators, shareholders, servants, trustees and agents (hereinafter the “Indemnitees”) against any and all liabilities, penalties, suits, causes of action, losses, damages, claims, costs and expenses (including, without limitation, reasonable fees and disbursements of counsel) or judgments of whatever kind or nature (each a “Claim”), imposed upon, incurred by or asserted against the Indemnitees arising out of or based upon (i) any allegation that the Private Placement Memorandum, the Company Information or any written information provided by the Issuer to the Dealer for dissemination to investors or potential investors of the Notes included (as of any relevant time) or includes an untrue statement of a material fact or omitted (as of any relevant time) or omits to state any material fact necessary to make the statements therein, in light of the circumstances under which they were made, not misleading or (ii) the breach by the Issuer of any agreement, covenant or representation made in or pursuant to this Agreement. This indemnification shall not apply to the extent that the Claim arises out of or is based upon (a) the Dealer's willful misconduct or gross negligence as determined by a final nonappealable judgment of a court of competent jurisdiction or (b) Dealer Information.

5.2 Provisions relating to claims made for indemnification under this Section 5 are set forth in Exhibit B to this Agreement.

5.3 In order to provide for just and equitable contribution in circumstances in which the indemnification provided for in this Section 5 is held to be unavailable or insufficient to hold harmless the Indemnitees, although applicable in accordance with the terms of this Section 5, the Issuer shall contribute to the aggregate costs incurred by the Dealer in connection with any Claim in the proportion of the respective economic interests of the Issuer and the Dealer; provided, however, that such contribution by the Issuer shall be in an amount such that the aggregate costs incurred by the Dealer do not exceed the aggregate of the commissions and fees earned by the Dealer hereunder with respect to the issue or issues of Notes to which such Claim relates. The respective economic interests shall be calculated by reference to the aggregate proceeds to the Issuer of the Notes issued hereunder and the aggregate commissions and fees earned by the Dealer hereunder. Notwithstanding the above, the Issuer shall not be required to contribute to any costs incurred by the Dealer in connection with a Claim arising out of or based upon the gross negligence or willful misconduct by the Dealer.

5.4 The Dealer agrees to indemnify and hold harmless the Issuer and its respective officers, employees and affiliates to the same extent as the foregoing indemnity from the Issuer to the Dealer, but only with respect to those Claims arising out of or based upon an allegation that any Dealer Information provided by the Dealer includes an untrue statement of a material fact or omits to state any material fact necessary to make the statements therein, in light of the circumstances under which they were made, not misleading.

6. Definitions.

6.1 “Anti-Corruption Laws” means all laws, rules, and regulations of any jurisdiction applicable to the Issuer and its Subsidiaries from time to time concerning or relating to bribery or corruption, including, without limitation, the Foreign Corrupt Practices Act of 1977, as amended, and any applicable law or regulation implementing the OECD Convention on Combating Bribery of Foreign Public Officials in International Business Transactions.

6.2 “Claim” shall have the meaning set forth in Section 5.1.

6.3 “Company Information” at any given time shall mean the Private Placement Memorandum together with, to the extent applicable, (i) the Issuer’s most recent report on Form 10-K filed with the SEC and each report on Form 10-Q or 8-K filed by the Issuer with the SEC since the most recent Form 10-K, (ii) the Issuer’s most recent annual audited financial statements and each interim financial statement or report prepared subsequent thereto, if not included in item (i) above, (iii) the Issuer’s and its affiliates’ other publicly available recent reports, including, but not limited to, any publicly available filings or reports provided to their respective shareholders, (iv) any other information or disclosure prepared pursuant to Section 4.3 hereof and (v) any information prepared or approved by the Issuer for dissemination to investors or potential investors in the Notes.

6.4 “Current Issuing and Paying Agent” shall have the meaning set forth in Section 7.9(a).

6.5 “Dealer Information” shall mean material concerning the Dealer provided by the Dealer in writing expressly for inclusion in the Private Placement Memorandum.

6.6 “DTC” shall mean The Depository Trust Company .

6.7 “Exchange Act” shall mean the U.S. Securities Exchange Act of 1934, as amended.

6.8 “Indemnitee” shall have the meaning set forth in Section 5.1.

6.9 “Institutional Accredited Investor” shall mean an institutional investor that is an accredited investor within the meaning of Rule 501 under the Securities Act and that has such knowledge and experience in financial and business matters that it is capable of evaluating and bearing the economic risk of an investment in the Notes, including, but not limited to, a bank, as defined in Section 3(a)(2) of the Securities Act, or a savings and loan association or other institution, as defined in Section 3(a)(5)(A) of the Securities Act, whether acting in its individual or fiduciary capacity.

6.10 “Issuing and Paying Agency Agreement” shall mean the issuing and paying agency agreement described on the cover page of this Agreement, as such agreement may be amended or supplemented from time to time.

6.11 “Issuing and Paying Agent” shall mean the party designated as such on the cover page of this Agreement, as issuing and paying agent under the Issuing and Paying Agency Agreement, or any successor thereto in accordance with the Issuing and Paying Agency Agreement.

6.12 “Master Note” shall mean a master note registered in the name of DTC or its nominee.

6.13 “Non-bank fiduciary or agent” shall mean a fiduciary or agent other than (a) a bank, as defined in Section 3(a)(2) of the Securities Act, or (b) a savings and loan association, as defined in Section 3(a)(5)(A) of the Securities Act.

6.14 “Outstanding Notes” shall have the meaning set forth in Section 7.9(b).

6.15 “Private Placement Memorandum” shall mean offering materials prepared in accordance with Section 4 (including materials referred to therein or incorporated by reference therein, if any) provided to purchasers and prospective purchasers of the Notes, and shall include amendments and supplements thereto which may be prepared from time to time in accordance with this Agreement (other than any amendment or supplement that has been completely superseded by a later amendment or supplement).

6.16 “Qualified Institutional Buyer” shall have the meaning assigned to that term in Rule 144A under the Securities Act.

6.17 “Replacement” shall have the meaning set forth in Section 7.9(a).

6.18 “Replacement Issuing and Paying Agent” shall have the meaning set forth in Section 7.9(a).

6.19 “Replacement Issuing and Paying Agency Agreement” shall have the meaning set forth in Section 7.9(a).

6.20 “Rule 144A” shall mean Rule 144A under the Securities Act.

6.21 “Sanctions” shall have the meaning set forth in Section 2.11.

6.22 “SEC” shall mean the U.S. Securities and Exchange Commission.

6.23 “Securities Act” shall mean the U.S. Securities Act of 1933, as amended.

7. General.

7.1 Unless otherwise expressly provided herein, all notices under this Agreement to parties hereto shall be in writing and shall be effective when received at the address of the respective party set forth in the Addendum to this Agreement.

7.2 This Agreement shall be governed by and construed in accordance with the laws of the State of New York, without regard to its conflict of laws provisions.

7.3 The Issuer agrees that any suit, action or proceeding brought by the Issuer against the Dealer in connection with or arising out of this Agreement or the Notes or the offer and sale of the Notes shall be brought solely in the United States federal courts located in the Borough of Manhattan or the courts of the State of New York located in the Borough of Manhattan. EACH OF THE DEALER AND THE ISSUER WAIVES ITS RIGHT TO TRIAL BY JURY IN ANY SUIT, ACTION OR PROCEEDING WITH RESPECT TO THIS AGREEMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY.

7.4 This Agreement may be terminated, at any time, by the Issuer, upon one business day’s prior notice to such effect to the Dealer, or by the Dealer upon one business day’s prior notice to such effect to the Issuer. Any such termination, however, shall not affect the obligations of the Issuer under Sections 3.7, 5 and 7.3 hereof or the respective representations, warranties, agreements, covenants, rights or responsibilities of the parties made or arising prior to the termination of this Agreement.

7.5 This Agreement is not assignable by either party hereto without the written consent of the other party; provided, however, that the Dealer may assign its rights and obligations under this Agreement to any affiliate of the Dealer which is a wholly-owned direct or indirect subsidiary of the ultimate parent entity of the Dealer and which acts as a dealer of commercial paper in the United States; provided however that the Dealer will give notice of such assignment as soon as reasonably practicable.

7.6 This Agreement may be signed in any number of counterparts, each of which shall be an original, with the same effect as if the signatures thereto and hereto were upon the same instrument.

7.7 This Agreement is for the exclusive benefit of the parties hereto, and their respective permitted successors and assigns hereunder, and shall not be deemed to give any legal or equitable right, remedy or claim to any other person whatsoever.

7.8 The Issuer acknowledges and agrees that (i) the purchase or sale of Notes by the Dealer is an arm's-length commercial transaction between the Issuer, on the one hand, and the Dealer, on the other, (ii) in connection therewith and with the process leading to such transactions, the Dealer is acting solely as a principal and not the agent (except to the extent explicitly set forth herein) or fiduciary of the Issuer or any of its affiliates, (iii) the Dealer has not assumed an advisory or fiduciary responsibility in favor of the Issuer with respect to the purchase or sale contemplated hereby or the process leading thereto (irrespective of whether the Dealer has advised or is currently advising the Issuer on other matters) or any other obligation to the Issuer except the obligations expressly set forth in this Agreement, (iv) the Issuer is capable of evaluating and understanding and understands and accepts the terms, risks and conditions of the transactions contemplated by this Agreement, (v) the Dealer and its affiliates may be engaged in a broad range of transactions that involve interests that differ from those of the Issuer and that the Dealer has no obligation to disclose any of those interests by virtue of any advisory or fiduciary relationship, (vi) the Dealer has not provided any legal, accounting, regulatory or tax advice with respect to the transactions contemplated hereby, and (vii) the Issuer has consulted its own legal and financial advisors to the extent it deemed appropriate. The Issuer agrees that it will not claim that the Dealer has rendered advisory services of any nature or respect, or owes a fiduciary or similar duty to the Issuer in connection with such transactions or the process leading thereto. Any review by the Dealer of the Issuer, the transactions contemplated hereby or other matters relating to such transactions shall be performed solely for the benefit of the Dealer and shall not be on behalf of the Issuer. This Agreement supersedes all prior agreements and understandings (whether written or oral) between the Issuer and the Dealer with respect to the subject matter hereof.

7.9 (a) The parties hereto agree that the Issuer may, in accordance with the terms of this Section 7.9, from time to time replace the party which is then acting as Issuing and Paying Agent (the “Current Issuing and Paying Agent”) with another party (such other party, the “Replacement Issuing and Paying Agent”), and enter into an agreement with the Replacement Issuing and Paying Agent covering the provision of issuing and paying agency functions in respect of the Notes by the Replacement Issuing and Paying Agent (the “Replacement Issuing and Paying Agency Agreement”) (any such replacement, a “Replacement”).

(b) From and after the effective date of any Replacement, (A) to the extent that the Issuing and Paying Agency Agreement provides that the Current Issuing and Paying Agent will continue to act in respect of Notes outstanding as of the effective date of such Replacement (the “Outstanding Notes”), then (i) the “Issuing and Paying Agent” for the Notes shall be deemed to be the Current Issuing and Paying Agent, in respect of the Outstanding Notes, and the Replacement Issuing and Paying Agent, in respect of Notes issued on or after the Replacement, (ii) all references to the “Issuing and Paying Agent” hereunder shall be deemed to refer to the Current Issuing and Paying Agent in respect of the Outstanding Notes, and the Replacement Issuing and Paying Agent in respect of Notes issued on or after the Replacement, and (iii) all references to the “Issuing and Paying Agency Agreement” hereunder shall be deemed to refer to the existing Issuing and Paying Agency Agreement, in respect of the Outstanding Notes, and the Replacement Issuing and Paying Agency Agreement, in respect of Notes issued on or after the Replacement; and (B) to the extent that the Issuing and Paying Agency Agreement does not provide that the Current Issuing and Paying Agent will continue to act in respect of the Outstanding Notes, then (i) the “Issuing and Paying Agent” for the Notes shall be deemed to be the Replacement Issuing and Paying Agent, (ii) all references to the “Issuing and Paying Agent” hereunder shall be deemed to refer to the Replacement Issuing and Paying Agent, and (iii) all references to the “Issuing and Paying Agency Agreement” hereunder shall be deemed to refer to the Replacement Issuing and Paying Agency Agreement.

(c) From and after the effective date of any Replacement, the Issuer shall not issue any Notes hereunder unless and until the Dealer shall have received: (a) a copy of the executed Replacement Issuing and Paying Agency Agreement, (b) a copy of the executed Letter of Representations among the Issuer, the Replacement Issuing and Paying Agent and DTC, (c) a copy of the executed Master Note authenticated by the Replacement Issuing and Paying Agent and registered in the name of DTC or its nominee, (d) an amendment or supplement to the Private Placement Memorandum describing the Replacement Issuing and Paying Agent as the Issuing and Paying Agent for the Notes, and reflecting any other changes thereto necessary in light of the Replacement so that the Private Placement Memorandum, as amended or supplemented, satisfies the requirements of this Agreement, and (e) a legal opinion of counsel to the Issuer, addressed to the Dealer, in form and substance reasonably satisfactory to the Dealer, as to (x) the due authorization, delivery, validity and enforceability of Notes issued pursuant to the Replacement Issuing and Paying Agency Agreement, and (y) such other matters as the Dealer may reasonably request.

[Signatures Commence on the Following Page]

IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be executed as of the date and year first above written.

MCKESSON CORPORATION,

as Issuer

By:

Name:

Title:

as Dealer

By:

Name:

Title:

Addendum

The following additional clauses shall apply to the Agreement and be deemed a part thereof.

1. The other dealers referred to in clause (b) of Section 1.2 of the Agreement are:

_________________________________________


2.	The addresses of the respective parties for purposes of notices under Section 7.1 are as follows:

For the Issuer:


Address:	McKesson Corporation ▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇▇ ▇▇▇▇▇ ▇▇▇ ▇▇▇▇▇▇▇▇▇, ▇▇ ▇▇▇▇▇

Attention: Treasurer

Telephone number: (▇▇▇) ▇▇▇-▇▇▇▇

with a copy to:


Address:	McKesson Corporation ▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇▇ ▇▇▇▇▇ ▇▇▇ ▇▇▇▇▇▇▇▇▇, ▇▇ ▇▇▇▇▇

Attention: Law Department

Telephone number: (▇▇▇) ▇▇▇-▇▇▇▇

For the Dealer:


Address:

Attention:

Telephone number:

Fax number:

Exhibit A

Form of Legend for Private Placement Memorandum and Notes

THE NOTES HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “ACT”), OR ANY OTHER APPLICABLE SECURITIES LAW, AND OFFERS AND SALES THEREOF MAY BE MADE ONLY IN COMPLIANCE WITH AN APPLICABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE ACT AND ANY APPLICABLE STATE SECURITIES LAWS. BY ITS ACCEPTANCE OF A NOTE, THE PURCHASER WILL BE DEEMED TO REPRESENT THAT (I) IT HAS BEEN AFFORDED AN OPPORTUNITY TO INVESTIGATE MATTERS RELATING TO THE ISSUER AND THE NOTES, (II) IT IS NOT ACQUIRING SUCH NOTE WITH A VIEW TO ANY DISTRIBUTION THEREOF AND (III) IT IS (A) AN INSTITUTIONAL INVESTOR THAT IS (1) AN ACCREDITED INVESTOR WITHIN THE MEANING OF RULE 501(a) UNDER THE ACT (AN “INSTITUTIONAL ACCREDITED INVESTOR”) AND (2) EITHER (i) PURCHASING NOTES FOR ITS OWN ACCOUNT, (ii) A BANK (AS DEFINED IN SECTION 3(a)(2) OF THE ACT) OR A SAVINGS AND LOAN ASSOCIATION OR OTHER INSTITUTION (AS DEFINED IN SECTION 3(a)(5)(A) OF THE ACT) ACTING IN ITS INDIVIDUAL OR FIDUCIARY CAPACITY OR (iii) A FIDUCIARY OR AGENT (OTHER THAN SUCH A BANK, SAVINGS AND LOAN ASSOCIATION OR OTHER INSTITUTION) PURCHASING NOTES FOR ONE OR MORE ACCOUNTS EACH OF WHICH ACCOUNTS IS SUCH AN INSTITUTIONAL ACCREDITED INVESTOR; OR (B) A QUALIFIED INSTITUTIONAL BUYER (“QIB”) WITHIN THE MEANING OF RULE 144A UNDER THE ACT THAT IS ACQUIRING NOTES FOR ITS OWN ACCOUNT OR FOR ONE OR MORE ACCOUNTS, EACH OF WHICH ACCOUNTS IS A QIB; AND THE PURCHASER ACKNOWLEDGES THAT IT IS AWARE THAT THE SELLER MAY RELY UPON THE EXEMPTION FROM THE REGISTRATION PROVISIONS OF SECTION 5 OF THE ACT PROVIDED BY RULE 144A. BY ITS ACCEPTANCE OF A NOTE, THE PURCHASER THEREOF SHALL ALSO BE DEEMED TO AGREE THAT ANY RESALE OR OTHER TRANSFER THEREOF WILL BE MADE ONLY (A) IN A TRANSACTION EXEMPT FROM REGISTRATION UNDER THE ACT, EITHER (1) TO THE ISSUER OR TO A PERSON DESIGNATED BY THE ISSUER AS A PLACEMENT AGENT FOR THE NOTES (EACH, A “PLACEMENT AGENT”), NEITHER OF WHICH SHALL HAVE ANY OBLIGATION TO ACQUIRE SUCH NOTE, (2) THROUGH A PLACEMENT AGENT TO AN INSTITUTIONAL ACCREDITED INVESTOR OR A QIB, OR (3) TO A QIB IN A TRANSACTION THAT MEETS THE REQUIREMENTS OF RULE 144A AND (B) IN MINIMUM AMOUNTS OF $250,000.

Exhibit B

Further Provisions Relating to Indemnification

(a) Upon presentation of an invoice containing such details as reasonably requested by the Issuer (excluding, for the avoidance of doubt, any attorney-client privileged information) with respect to any reimbursement being sought, the Issuer agrees to reimburse each Indemnitee for all expenses (including reasonable fees and disbursements of external counsel) as they are incurred by it in connection with investigating or defending any loss, claim, damage, liability or action in respect of which indemnification may be sought under Section 5 of the Agreement (whether or not it is a party to any such proceedings).

(b) Promptly after receipt by an Indemnitee of notice of the existence of a Claim, such Indemnitee will, if a claim in respect thereof is to be made against the Issuer, notify the Issuer in writing of the existence thereof; provided that (i) the omission to so notify the Issuer will not relieve the Issuer from any liability which it may have hereunder unless and except to the extent and such failure results in the forfeiture by the Issuer of substantial rights and defenses, and (ii) the omission to so notify the Issuer will not relieve it from liability which it may have to an Indemnitee otherwise than on account of the indemnity provisions of this Agreement. In case any such Claim is made against any Indemnitee and it notifies the Issuer of the existence thereof, the Issuer will be entitled to participate therein, and to the extent that it may elect by written notice delivered to the Indemnitee, to assume the defense thereof, with counsel reasonably satisfactory to such Indemnitee; provided that if the defendants in any such Claim include both the Indemnitee and the Issuer, and the Indemnitee shall have reasonably concluded that there may be legal defenses available to it which are different from or additional to those available to the Issuer, the Issuer shall not have the right to direct the defense of such Claim on behalf of such Indemnitee, and the Indemnitee shall have the right to select separate counsel to assert such legal defenses on behalf of such Indemnitee. Upon receipt of notice from the Issuer to such Indemnitee of the Issuer’s election to assume the defense of such Claim and approval by the Indemnitee of counsel, the Issuer will not be liable to such Indemnitee for expenses incurred thereafter by the Indemnitee in connection with the defense thereof (other than reasonable costs of investigation) unless (i) the Indemnitee shall have employed separate counsel in connection with the assertion of legal defenses in accordance with the proviso to the next preceding sentence (it being understood, however, that the Issuer shall not be liable for the expenses of more than one separate counsel (in addition to any local counsel in the jurisdiction in which any Claim is brought), approved by the Dealer, representing the Indemnitee who is party to such Claim), (ii) the Issuer shall not have employed counsel reasonably satisfactory to the Indemnitee to represent the Indemnitee within a reasonable time after notice of existence of the Claim or (iii) the Issuer has authorized in writing the employment of counsel for the Indemnitee. The indemnity, reimbursement and contribution obligations of the Issuer hereunder shall be in addition to any other liability the Issuer may otherwise have to an Indemnitee and shall be binding upon and inure to the benefit of any successors, assigns, heirs and personal representatives of the Issuer and any Indemnitee. The Issuer agrees that without the Dealer’s prior written consent, it will not settle, compromise or consent to the entry of any judgment in any Claim in respect of which indemnification may be sought under the indemnification provision of the Agreement (whether or not the Dealer or any other Indemnitee is an actual or potential party to such Claim), unless such settlement, compromise or consent (i) includes an unconditional release of each Indemnitee from all liability arising out of such Claim and (ii) does not include a statement as to or an admission of fault, culpability or failure to act, by or on behalf of any Indemnitee.

Exhibit C

Statement of Terms for Interest-Bearing Commercial Paper Notes of
McKesson Corporation

THE PROVISIONS SET FORTH BELOW ARE QUALIFIED TO THE EXTENT APPLICABLE BY THE TRANSACTION SPECIFIC [PRICING] [PRIVATE PLACEMENT MEMORANDUM] SUPPLEMENT (THE “SUPPLEMENT”) (IF ANY) SENT TO EACH PURCHASER AT THE TIME OF THE TRANSACTION.

1. General. (a) The obligations of the Issuer to which these terms apply (each a “Note”) are represented by one or more master notes issued in the name of The Depository Trust Company (“DTC”) or its nominee (each, a “Master Note”) which include the terms and provisions for the Issuer’s Interest-Bearing Commercial Paper Notes that are set forth in this Statement of Terms, since this Statement of Terms constitutes an integral part of the Underlying Records as defined and referred to in each Master Note.

(b) “Business Day” means any day other than a Saturday or Sunday that is neither a legal holiday nor a day on which banking institutions are authorized or required by law, executive order or regulation to be closed in New York City and, with respect to LIBOR Notes (as defined below) is also a London Business Day. “London Business Day” means, a day, other than a Saturday or Sunday, on which dealings in deposits in U.S. dollars are transacted in the London interbank market.

2. Interest. (a) Each Note will bear interest at a fixed rate (a “Fixed Rate Note”) or at a floating rate (a “Floating Rate Note”).

(b) The Supplement sent to each holder of such Note will describe the following terms: (i) whether such Note is a Fixed Rate Note or a Floating Rate Note and whether such Note is an Original Issue Discount Note (as defined below); (ii) the date on which such Note will be issued (the “Issue Date”); (iii) the Stated Maturity Date (as defined below); (iv) if such Note is a Fixed Rate Note, the rate per annum at which such Note will bear interest, if any, and the Interest Payment Dates; (v) if such Note is a Floating Rate Note, the Base Rate, the Index Maturity, the Interest Reset Dates, the Interest Payment Dates and the Spread and/or Spread Multiplier, if any (all as defined below), and any other terms relating to the particular method of calculating the interest rate for such Note; and (vi) any other terms applicable specifically to such Note. “Original Issue Discount Note” means a Note which has a stated redemption price at the Stated Maturity Date that exceeds its Issue Price by more than a specified de minimis amount and which the Supplement indicates will be an “Original Issue Discount Note”.

(c) Each Fixed Rate Note will bear interest from its Issue Date at the rate per annum specified in the Supplement until the principal amount thereof is paid or made available for payment. Interest on each Fixed Rate Note will be payable on the dates specified in the Supplement (each an “Interest Payment Date” for a Fixed Rate Note) and on the Maturity Date (as defined below). Interest on Fixed Rate Notes will be computed on the basis of a 360-day year of twelve 30-day months.

If any Interest Payment Date or the Maturity Date of a Fixed Rate Note falls on a day that is not a Business Day, the required payment of principal, premium, if any, and/or interest will be payable on the next succeeding Business Day, and no additional interest will accrue in respect of the payment made on that next succeeding Business Day.

(d) The interest rate on each Floating Rate Note for each Interest Reset Period (as defined below) will be determined by reference to an interest rate basis (a “Base Rate”) plus or minus a number of basis points (one basis point equals one-hundredth of a percentage point) (the “Spread”), if any, and/or multiplied by a certain percentage (the “Spread Multiplier”), if any, until the principal thereof is paid or made available for payment. The Supplement will designate which of the following Base Rates is applicable to the related Floating Rate Note: (a) the Commercial Paper Rate (a “Commercial Paper Rate Note”), (b) the Federal Funds Rate (a “Federal Funds Rate Note”), (c) LIBOR (a “LIBOR Note”), (d) the Prime Rate (a “Prime Rate Note”), (e) the Treasury Rate (a “Treasury Rate Note”) or (f) such other Base Rate as may be specified in such Supplement.

The rate of interest on each Floating Rate Note will be reset daily, weekly, monthly, quarterly or

semi-annually (the “Interest Reset Period”). The date or dates on which interest will be reset (each an “Interest Reset Date”) will be, unless otherwise specified in the Supplement, in the case of Floating Rate Notes which reset daily, each Business Day, in the case of Floating Rate Notes (other than Treasury Rate Notes) that reset weekly, the Wednesday of each week; in the case of Treasury Rate Notes that reset weekly, the Tuesday of each week; in the case of Floating Rate Notes that reset monthly, the third Wednesday of each month; in the case of Floating Rate Notes that reset quarterly, the third Wednesday of March, June, September and December; and in the case of Floating Rate Notes that reset semiannually, the third Wednesday of the two months specified in the Supplement. If any Interest Reset Date for any Floating Rate Note is not a Business Day, such Interest Reset Date will be postponed to the next day that is a Business Day, except that in the case of a LIBOR Note, if such Business Day is in the next succeeding calendar month, such Interest Reset Date shall be the immediately preceding Business Day. Interest on each Floating Rate Note will be payable monthly, quarterly or semiannually (the “Interest Payment Period”) and on the Maturity Date. Unless otherwise specified in the Supplement, and except as provided below, the date or dates on which interest will be payable (each an “Interest Payment Date” for a Floating Rate Note) will be, in the case of Floating Rate Notes with a monthly Interest Payment Period, on the third Wednesday of each month; in the case of Floating Rate Notes with a quarterly Interest Payment Period, on the third Wednesday of March, June, September and December; and in the case of Floating Rate Notes with a semiannual Interest Payment Period, on the third Wednesday of the two months specified in the Supplement. In addition, the Maturity Date will also be an Interest Payment Date.

If any Interest Payment Date for any Floating Rate Note (other than an Interest Payment Date occurring on the Maturity Date) would otherwise be a day that is not a Business Day, such Interest Payment Date shall be postponed to the next day that is a Business Day, except that in the case of a LIBOR Note, if such Business Day is in the next succeeding calendar month, such Interest Payment Date shall be the immediately preceding Business Day. If the Maturity Date of a Floating Rate Note falls on a day that is not a Business Day, the payment of principal and interest will be made on the next succeeding Business Day, and no interest on such payment shall accrue for the period from and after such maturity.

Interest payments on each Interest Payment Date for Floating Rate Notes will include accrued interest from and including the Issue Date or from and including the last date in respect of which interest has been paid, as the case may be, to, but excluding, such Interest Payment Date. On the Maturity Date, the interest payable on a Floating Rate Note will include interest accrued to, but excluding, the Maturity Date. Accrued interest will be calculated by multiplying the principal amount of a Floating Rate Note by an accrued interest factor. This accrued interest factor will be computed by adding the interest factors calculated for each day in the period for which accrued interest is being calculated. The interest factor (expressed as a decimal) for each such day will be computed by dividing the interest rate applicable to such day by 360, in the cases where the Base Rate is the Commercial Paper Rate, Federal Funds Rate, LIBOR or Prime Rate, or by the actual number of days in the year, in the case where the Base Rate is the Treasury Rate. The interest rate in effect on each day will be (i) if such day is an Interest Reset Date, the interest rate with respect to the Interest Determination Date (as defined below) pertaining to such Interest Reset Date, or (ii) if such day is not an Interest Reset Date, the interest rate with respect to the Interest Determination Date pertaining to the next preceding Interest Reset Date, subject in either case to any adjustment by a Spread and/or a Spread Multiplier.

The “Interest Determination Date” where the Base Rate is the Commercial Paper Rate will be the second Business Day next preceding an Interest Reset Date. The Interest Determination Date where the Base Rate is the Federal Funds Rate or the Prime Rate will be the Business Day next preceding an Interest Reset Date. The Interest Determination Date where the Base Rate is LIBOR will be the second London Business Day next preceding an Interest Reset Date. The Interest Determination Date where the Base Rate is the Treasury Rate will be the day of the week in which such Interest Reset Date falls when Treasury Bills are normally auctioned. Treasury Bills are normally sold at auction on Monday of each week, unless that day is a legal holiday, in which case the auction is held on the following Tuesday or the preceding Friday. If an auction is so held on the preceding Friday, such Friday will be the Interest Determination Date pertaining to the Interest Reset Date occurring in the next succeeding week.

The “Index Maturity” is the period to maturity of the instrument or obligation from which the applicable Base Rate is calculated.

The “Calculation Date,” where applicable, shall be the earlier of (i) the tenth calendar day following the applicable Interest Determination Date or (ii) the Business Day preceding the applicable Interest Payment Date or Maturity Date.

All times referred to herein reflect New York City time, unless otherwise specified.

The Issuer shall specify in writing to the Issuing and Paying Agent which party will be the calculation agent (the “Calculation Agent”) with respect to the Floating Rate Notes. The Calculation Agent will provide the interest rate then in effect and, if determined, the interest rate which will become effective on the next Interest Reset Date with respect to such Floating Rate Note to the Issuing and Paying Agent as soon as the interest rate with respect to such Floating Rate Note has been determined and as soon as practicable after any change in such interest rate.

All percentages resulting from any calculation on Floating Rate Notes will be rounded to the nearest one hundred-thousandth of a percentage point, with five-one millionths of a percentage point rounded upwards. For example, 9.876545% (or .09876545) would be rounded to 9.87655% (or .0987655). All dollar amounts used in or resulting from any calculation on Floating Rate Notes will be rounded, in the case of U.S. dollars, to the nearest cent or, in the case of a foreign currency, to the nearest unit (with one-half cent or unit being rounded upwards).

Commercial Paper Rate Notes

“Commercial Paper Rate” means the Money Market Yield (calculated as described below) of the rate on any Interest Determination Date for commercial paper having the Index Maturity, as published in H.15(519) under the heading “Commercial Paper-Nonfinancial”.

If the above rate is not published in H.15(519) by 3:00 p.m. on the Calculation Date, then the Commercial Paper Rate will be the Money Market Yield of the rate on such Interest Determination Date for commercial paper of the Index Maturity as published in H.15 Daily Update under the heading “Commercial Paper-Nonfinancial”.

If by 3:00 p.m. on such Calculation Date such rate is not published in either H.15(519) or H.15 Daily Update, then the Calculation Agent will determine the Commercial Paper Rate to be the Money Market Yield of the arithmetic mean of the offered rates as of 11:00 a.m. on such Interest Determination Date of three leading dealers of U.S. dollar commercial paper in New York City selected by the Calculation Agent for commercial paper of the Index Maturity placed for an industrial issuer whose bond rating is “AA,” or the equivalent, from a nationally recognized statistical rating organization.

If the dealers selected by the Calculation Agent are not quoting as mentioned above, the Commercial Paper Rate with respect to such Interest Determination Date will remain the Commercial Paper Rate then in effect on such Interest Determination Date.

“Money Market Yield” will be a yield calculated in accordance with the following formula:

D x 360

Money Market Yield = ___________ x 100

360 - (D x M)

where “D” refers to the applicable per annum rate for commercial paper quoted on a bank discount basis and expressed as a decimal and “M” refers to the actual number of days in the interest period for which interest is being calculated.

Federal Funds Rate Notes

“Federal Funds Rate” means the rate on any Interest Determination Date for federal funds as published in H.15(519) under the heading “Federal Funds (Effective)” and displayed on Reuters Screen FEDFUNDS1 Page under the heading “EFFECT” (or any successor service) (or any other page as may replace the specified page on that service) (“Reuters Page FEDFUNDS1”).

If the above rate does not appear on Reuters Page FEDFUNDS1 or is not so published by 3:00 p.m. on the Calculation Date, the Federal Funds Rate will be the rate on such Interest Determination Date as published in H.15 Daily Update under the heading “Federal Funds/(Effective)”.

If such rate is not published as described above by 3:00 p.m. on the Calculation Date, the Calculation Agent will determine the Federal Funds Rate to be the arithmetic mean of the rates for the last transaction in overnight U.S. dollar federal funds arranged by each of three leading brokers of Federal Funds transactions in New York City selected by the Calculation Agent prior to 9:00 a.m. on such Interest Determination Date.

If the brokers selected by the Calculation Agent are not quoting as mentioned above, the Federal

Funds Rate will remain the Federal Funds Rate then in effect on such Interest Determination Date.

LIBOR Notes

The London Interbank offered rate (“LIBOR”) means, with respect to any Interest Determination Date, the rate for deposits in U.S. dollars having the Index Maturity that appears on the Designated LIBOR Page as of 11:00 a.m., London time, on such Interest Determination Date.

If no rate appears, LIBOR will be determined on the basis of the rates at approximately 11:00 a.m., London time, on such Interest Determination Date at which deposits in U.S. dollars are offered to prime banks in the London interbank market by four major banks in such market selected by the Calculation Agent for a term equal to the Index Maturity and in principal amount equal to an amount that in the Calculation Agent’s judgment is representative for a single transaction in U.S. dollars in such market at such time (a “Representative Amount”). The Calculation Agent will request the principal London office of each of such banks to provide a quotation of its rate. If at least two such quotations are provided, LIBOR will be the arithmetic mean of such quotations. If fewer than two quotations are provided, LIBOR for such interest period will be the arithmetic mean of the rates quoted at approximately 11:00 a.m., in New York City, on such Interest Determination Date by three major banks in New York City, selected by the Calculation Agent, for loans in U.S. dollars to leading European banks, for a term equal to the Index Maturity and in a Representative Amount; provided, however, that if fewer than three banks so selected by the Calculation Agent are providing such quotations, the then existing LIBOR rate will remain in effect for such Interest Payment Period.

“Designated LIBOR Page” means the display on the Reuters 3000 Xtra Service, or any successor service, on the “LIBOR01” page or “LIBOR02” page or any replacement page or pages on which London interbank offered rates of major banks for U.S. dollars are displayed.

Prime Rate Notes

“Prime Rate” means the rate on any Interest Determination Date as published in H.15(519) under the heading “Bank Prime Loan”.

If the above rate is not published in H.15(519) prior to 3:00 p.m. on the Calculation Date, then the Prime Rate will be the rate on such Interest Determination Date as published in H.15 Daily Update opposite the caption “Bank Prime Loan”.

If the rate is not published prior to 3:00 p.m. on the Calculation Date in either H.15(519) or H.15 Daily Update, then the Calculation Agent will determine the Prime Rate to be the arithmetic mean of the rates of interest publicly announced by each bank that appears on the Reuters Screen US PRIME 1 Page (as defined below) as such bank’s prime rate or base lending rate as of 11:00 a.m., on that Interest Determination Date.

If fewer than four such rates referred to above are so published by 3:00 p.m. on the Calculation Date, the Calculation Agent will determine the Prime Rate to be the arithmetic mean of the prime rates or base lending rates quoted on the basis of the actual number of days in the year divided by 360 as of the close of business on such Interest Determination Date by three major banks in New York City selected by the Calculation Agent.

If the banks selected are not quoting as mentioned above, the Prime Rate will remain the Prime Rate in effect on such Interest Determination Date.

“Reuters Screen US PRIME 1 Page” means the display designated on the Reuters 3000 Xtra Service, or any successor service, on the US PRIME 1 page, or any replacement page or pages on which prime rates or base lending rates of major U.S. banks are displayed.

Treasury Rate Notes

“Treasury Rate” means:

(1) the rate from the auction held on the Interest Determination Date (the “Auction”) of direct obligations of the United States (“Treasury Bills”) having the Index Maturity specified in the Supplement under the caption “INVESTMENT RATE” on the display on Reuters Screen USAUCTION10 or USAUCTION11 page (or any other page as may replace that page on that service or a successor service), or

(2) if the rate referred to in clause (1) is not so published by 3:00 p.m. on the related Calculation Date, the Bond Equivalent Yield (as defined below) of the rate for the applicable Treasury Bills as published in H.15 Daily Update, under the caption “U.S. Government Securities/Treasury Bills/Auction High”, or

(3) if the rate referred to in clause (2) is not so published by 3:00 p.m. on the related Calculation Date, the Bond Equivalent Yield of the auction rate of the applicable Treasury Bills as announced by the United States Department of the Treasury, or

(4) if the rate referred to in clause (3) is not so announced by the United States Department of the Treasury, or if the Auction is not held, the Bond Equivalent Yield of the rate on the particular Interest Determination Date of the applicable Treasury Bills as published in H.15(519) under the caption “U.S. Government Securities/Treasury Bills/Secondary Market”, or

(5) if the rate referred to in clause (4) not so published by 3:00 p.m. on the related Calculation Date, the rate on the particular Interest Determination Date of the applicable Treasury Bills as published in H.15 Daily Update, under the caption “U.S. Government Securities/Treasury Bills/Secondary Market”, or

(6) if the rate referred to in clause (5) is not so published by 3:00 p.m. on the related Calculation Date, the rate on the particular Interest Determination Date calculated by the Calculation Agent as the Bond Equivalent Yield of the arithmetic mean of the secondary market bid rates, as of approximately 3:30 p.m. on that Interest Determination Date, of three primary United States government securities dealers selected by the Calculation Agent, for the issue of Treasury Bills with a remaining maturity closest to the Index Maturity specified in the Supplement, or

(7) if the dealers so selected by the Calculation Agent are not quoting as mentioned in clause (6), the Treasury Rate in effect on the particular Interest Determination Date.

“Bond Equivalent Yield” means a yield (expressed as a percentage) calculated in accordance with the following formula:

D x N

Bond Equivalent Yield = ____________ x 100

360 - (D x M)

where “D” refers to the applicable per annum rate for Treasury Bills quoted on a bank discount basis and expressed as a decimal, “N” refers to 365 or 366, as the case may be, and “M” refers to the actual number of days in the applicable Interest Reset Period.

3. Final Maturity. The Stated Maturity Date for any Note will be the date so specified in the Supplement, which shall be no later than 397 days from the date of issuance. On its Stated Maturity Date, or any date prior to the Stated Maturity Date on which the particular Note becomes due and payable by the declaration of acceleration, each such date being referred to as a Maturity Date, the principal amount of each Note, together with accrued and unpaid interest thereon, will be immediately due and payable.

4. Events of Default. The occurrence of any of the following shall constitute an “Event of Default” with respect to a Note: (i) default in any payment of principal of or interest on such Note (including on a redemption thereof); (ii) the Issuer makes any compromise arrangement with its creditors generally including the entering into any form of moratorium with its creditors generally; (iii) a court having jurisdiction shall enter a decree or order for relief in respect of the Issuer in an involuntary case under any applicable bankruptcy, insolvency or other similar law now or hereafter in effect, or there shall be appointed a receiver, administrator, liquidator, custodian, trustee or sequestrator (or similar officer) with respect to the whole or substantially the whole of the assets of the Issuer and any such decree, order or appointment is not removed, discharged or withdrawn within 60 days thereafter; or (iv) the Issuer shall commence a voluntary case under any applicable bankruptcy, insolvency or other similar law now or hereafter in effect, or consent to the entry of an order for relief in an involuntary case under any such law, or consent to the appointment of or taking possession by a receiver, administrator, liquidator, assignee, custodian, trustee or sequestrator (or similar official), with respect to the whole or substantially the whole of the assets of the Issuer or make any general assignment for the benefit of creditors. Upon the occurrence of an Event of Default, the principal of each obligation evidenced by such Note (together with interest accrued and unpaid thereon) shall become, without any notice or demand, immediately due and payable.

5. Obligation Absolute. No provision of the Issuing and Paying Agency Agreement under which the Notes are issued shall alter or impair the obligation of the Issuer, which is absolute and unconditional, to pay the principal of and interest on each Note at the times, place and rate, and in the coin or currency, herein prescribed.

6. Supplement. Any term contained in the Supplement shall supersede any conflicting term contained herein.

COMMERCIAL PAPER DEALER AGREEMENT between MCKESSON CORPORATION, as Issuer and , as Dealer

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