Form of the 2040 Note

Exhibit 4.3

UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (“DTC”) TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO., OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

UNLESS AND UNTIL THIS GLOBAL NOTE IS EXCHANGED IN WHOLE OR IN PART FOR A GLOBAL NOTE IN DEFINITIVE REGISTERED FORM, THIS GLOBAL NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY DTC TO A NOMINEE OF DTC OR BY A NOMINEE OF DTC TO DTC OR ANOTHER NOMINEE OF DTC OR BY DTC OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITARY.

CVS HEALTH CORPORATION

4.125% Senior Note due 2040

CVS HEALTH CORPORATION, a Delaware corporation (such corporation, and its successors and assigns under the Indenture hereinafter referred to, being herein called the “Company”), for value received promises to pay to CEDE & CO., or registered assigns, the principal sum of $[●] on April 1, 2040. If such maturity date is not a Business Day, then payment of principal will be made on the next succeeding Business Day and no interest will accrue on the amount so payable for the period from such maturity date to the date payment is made.

Interest Payment Dates: April 1 and October 1.

Record Dates: Each March 15 and September 15, immediately preceding each Interest Payment Date.

Additional provisions of this Note are set forth on the reverse side of this Note.

[Remainder of page intentionally left blank]

IN WITNESS WHEREOF, the Company has caused this Note to be duly executed.

[Signature Page to Note]

Dated: March 31, 2020

TRUSTEE’S CERTIFICATE OF AUTHENTICATION

THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.,

as Trustee, certifies that this is one of the Debt Securities referred to

in the Indenture.

[Signature Page to Note]

4.125% Senior Note due 2040

This Note is one of a duly authorized series of Notes of the Company, designated as its 4.125% Senior Notes due 2040 (hereinafter referred to as the “Notes”).

The Company promises to pay interest on the principal amount of this Note at the rate per annum shown above.

The Company will pay interest on the Notes semi-annually on April 1 and October 1 of each year, commencing October 1, 2020. Interest on the Notes will accrue from the most recent date to which interest has been paid or provided for, or, if no interest has been paid or provided for, from March 31, 2020. Interest will be computed on the basis of a 360-day year of twelve 30-day months. The Company shall pay interest on overdue principal at the rate borne by the Notes. If any interest payment date is not a Business Day, then payment of interest will be made on the next succeeding Business Day and no interest will accrue on the amount so payable for the period from such interest payment date to the date payment is made.

The Company will pay interest on the Notes (except defaulted interest) to the Persons who are registered Holders thereof at the close of business on the March 15 and September 15 (whether or not a Business Day) immediately preceding the interest payment date even if the Notes are canceled after the record date and on or before the interest payment date. Holders must surrender Notes to a Paying Agent to collect principal payments. The Company will pay principal, premium, if any, and interest in money of the United States that at the time of payment is legal tender for payment of public and private debts by wire transfer of immediately available funds to the accounts specified by the Holders, or, if no such account is specified, the Company may pay principal and interest by check payable in such money. It may mail an interest check to a Holder’s registered address.

Initially, The Bank of New York Mellon Trust Company, N.A., a national banking association (the “Trustee”), will act as Paying Agent and Registrar. The Company may appoint and change any Paying Agent, Registrar or co-registrar without notice. The Company or any of its domestically incorporated Wholly Owned Subsidiaries may act as Paying Agent, Registrar or co-registrar.

The Company issued the Notes under an Indenture dated as of August 15, 2006 (the “Indenture”), between the Company and the Trustee. The terms of the Notes include those stated in the Indenture and those made part of the Indenture by reference to the Trust Indenture Act of 1939 (15 U.S.C. ss.ss. 77aaa-77bbbb) as in effect on the date of the Indenture (the “TIA”). Terms defined in the Indenture and not otherwise defined herein have the respective meanings ascribed thereto in the Indenture. The Notes are subject to all such terms, and Holders of Notes are referred to the Indenture and the TIA for a statement of those terms.

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The Notes are general unsecured senior obligations of the Company initially limited to $1,000,000,000 aggregate principal amount (subject to Section 2.08 of the Indenture). The Company may at any time issue additional Notes under the Indenture in unlimited amounts having the same terms as and treated as a single class with the Notes for all purposes under the Indenture and that will vote together as one class with respect to the Notes. The Indenture imposes certain limitations on the incurrence of certain additional indebtedness by the Company and certain of its subsidiaries and the entry into certain sale and leaseback arrangements by the Company and certain of its subsidiaries. The Indenture also restricts the ability of the Company to consolidate or merge with or into, or to transfer all or substantially all its assets to, another person.

Prior to October 1, 2039 (for purposes of this Note, the “Applicable Par Call Date”), the Company, at its option, may at any time redeem all or any portion of the Notes upon not less than 10 nor more than 60 days’ notice at a redemption price, plus accrued and unpaid interest, if any, to, but excluding, the redemption date, equal to the greater of (i) 100% of the aggregate principal amount of the Notes being redeemed or (ii) the sum of the present values of the remaining scheduled payments of principal and interest on the Notes being redeemed that would be due if the Notes matured on the Applicable Par Call Date (not including any portion of such payments of interest accrued to the redemption date) discounted to the redemption date on a semiannual basis (assuming a 360-day year consisting of twelve 30-day months) at the applicable Treasury Yield plus 45 basis points. On or after the Applicable Par Call Date, the Company, at its option, may at any time redeem all or any portion of the Notes upon not less than 10 nor more than 60 days’ notice at a redemption price equal to 100% of the aggregate principal amount of the Notes being redeemed plus accrued and unpaid interest, if any, to, but excluding, the redemption date on such Notes. If any redemption date is not a Business Day, then payment of the redemption price and accrued and unpaid interest will be made on the next succeeding Business Day, and no interest will accrue on the amounts so payable for the period from such redemption date to the date payment is made.

“Comparable Treasury Issue” means the United States Treasury security selected by an Independent Investment Banker as having a maturity comparable to the remaining term of the Notes (assuming, for this purpose, that the Notes matured on the Applicable Par Call Date) that would be utilized, at the time of selection and in accordance with customary financial practice, in pricing new issues of corporate debt securities of comparable maturity to such remaining term.

“Comparable Treasury Price” means, with respect to any redemption date for the Notes, (i) the average of the applicable Reference Treasury Dealer Quotations for such redemption date, after excluding the highest and lowest such applicable Reference Treasury Dealer Quotations, or (ii) if the Independent Investment Banker obtains fewer than four such Reference Treasury Dealer Quotations, the average of all such Reference Treasury Dealer Quotations.

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“Independent Investment Banker” means Barclays Capital Inc. or, if such firm is unwilling or unable to select the applicable Comparable Treasury Issue, an independent investment banking institution of national standing appointed by the Company.

“Reference Treasury Dealer” means (i) Barclays Capital Inc., Goldman Sachs & Co. LLC and J.P. Morgan Securities LLC and their respective successors; provided, however, that if any of the foregoing shall cease to be a primary United States government securities dealer in New York City (a “Primary Treasury Dealer”), the Company shall substitute therefor another Primary Treasury Dealer and (ii) any other Primary Treasury Dealer selected by the Company.

“Reference Treasury Dealer Quotations” means, with respect to each Reference Treasury Dealer and any redemption date for the Notes, the average, as determined by the Independent Investment Banker, of the bid and asked prices for the Comparable Treasury Issue for the Notes (expressed as a percentage of the aggregate principal amount of the Comparable Treasury Issue) quoted in writing to the Independent Investment Banker by such Reference Treasury Dealer at 5:00 p.m., New York City time, on the third business day preceding such redemption date.

“Treasury Yield” means, with respect to any redemption date for the Notes, the rate per annum equal to the semiannual equivalent yield to maturity of the Comparable Treasury Issue for the Notes, assuming a price for the Comparable Treasury Issue (expressed as a percentage of the aggregate principal amount of the Comparable Treasury Issue) equal to the applicable Comparable Treasury Price for such redemption date.

Notice of redemption shall be transmitted by the Company (or, at the Company’s request, by the Trustee on the Company’s behalf) to each Holder of Notes to be redeemed. Notes in denominations larger than $2,000 may be redeemed in part but only in whole multiples of $1,000. If money sufficient to pay the redemption price of and accrued interest on all Notes (or portions thereof) to be redeemed on the redemption date is deposited with the Paying Agent on or before the redemption date and certain other conditions are satisfied, on and after such date interest ceases to accrue on such Notes (or such portions thereof) called for redemption.

If a Change of Control Triggering Event (as defined below) occurs, Holders of the Notes will have the right to require the Company to repurchase all or any part (in integral multiples of $1,000 up to the original principal amount) of their Notes pursuant to the offer described below (the “Change of Control Offer”) on the terms set forth in this Note. In the Change of Control Offer, the Company will be required to offer payment in cash equal to 101% of the aggregate principal amount of Notes repurchased plus accrued and unpaid interest, if any, on the Notes repurchased, to, but excluding, the date of purchase (the “Change of Control Payment”). Within 30 days following any Change of Control Triggering Event, the Company will be required to mail a notice to Holders of Notes describing the transaction or transactions that constitute the Change of Control Triggering Event and offering to repurchase the Notes on the date specified in the notice, which date will be no earlier than 30 days and no later than 60 days

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from the date such notice is mailed (the “Change of Control Payment Date”), pursuant to the procedures required by this Note and described in such notice. The Company must comply with the requirements of Rule 14e-1 under the Exchange Act and any other securities laws and regulations thereunder to the extent those laws and regulations are applicable in connection with the repurchase of the Notes as a result of a Change of Control Triggering Event. To the extent that the provisions of any securities laws or regulations conflict with the Change of Control provisions of the Notes, the Company will be required to comply with the applicable securities laws and regulations and will not be deemed to have breached its obligations under the Change of Control provisions of the Notes by virtue of such conflicts and compliance with law.

On the Change of Control Payment Date, the Company will be required, to the extent lawful, to:

The Company will not be required to make a Change of Control Offer upon the occurrence of a Change of Control Triggering Event if a third party makes such an offer in the manner, at the times and otherwise in compliance with the requirements for an offer made by the Company and the third party repurchases all Notes properly tendered and not withdrawn under its offer. In addition, the Company will not repurchase any Notes if there has occurred and is continuing on the Change of Control Payment Date an event of default under the Indenture, other than a default in the payment of the Change of Control Payment upon a Change of Control Triggering Event.

For purposes of the foregoing, the following definitions are applicable:

“Below Investment Grade Rating Event” means that the Notes are rated below an Investment Grade Rating by each of the Rating Agencies (as defined below) on any date from the date of the public notice of an arrangement that could result in a Change of Control until the end of the 60-day period following public notice of the occurrence of the Change of Control (which 60-day period shall be extended so long as the rating of the Notes is under publicly announced consideration for possible downgrade by any of the Rating Agencies); provided, however, that a Below Investment Grade Rating Event otherwise arising by virtue of a particular reduction in rating will not be deemed to have occurred in respect of a particular Change of Control (and thus will not be deemed a Below Investment Grade Rating Event for purposes of the definition of Change of Control Triggering Event) if the Rating Agencies making the reduction in rating to which this definition would otherwise apply do not announce or publicly confirm or inform the Trustee in writing at the Company’s or the Trustee’s request that the reduction was the result, in whole or in part, of any event or circumstance comprised of or

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arising as a result of, or in respect of, the applicable Change of Control (whether or not the applicable Change of Control has occurred at the time of the Below Investment Grade Rating Event).

“Change of Control” means the occurrence of any of the following: (1) any event requiring the filing of any report under or in response to Schedule 13D or 14D-1 pursuant to the Exchange Act disclosing beneficial ownership of either 50% or more of the Company’s common stock then outstanding or 50% or more of the Company’s voting power or the Company’s voting stock then outstanding; (2) the direct or indirect sale, transfer, conveyance or other disposition (other than by way of merger or consolidation), in one or a series of related transactions, of all or substantially all of the Company’s properties or the Company’s assets and the assets of its respective subsidiaries taken as a whole to one or more persons (as defined in the Indenture) other than the Company or one of its subsidiaries; or (3) the first day on which a majority of the members of the Company’s Board of Directors are not Continuing Directors.

Notwithstanding the foregoing, a transaction will not be deemed to involve a Change of Control if (1) the Company becomes a direct or indirect wholly-owned subsidiary of a holding company and (2)(A) the direct or indirect holders of the voting stock of such holding company immediately following that transaction are substantially the same as the holders of the Company’s voting stock immediately prior to that transaction or (B) immediately following that transaction no person (other than a holding company satisfying the requirements of this sentence) is the beneficial owner, directly or indirectly, of more than 50% of the voting stock of such holding company.

“Change of Control Triggering Event” means the occurrence of both a Change of Control and a Below Investment Grade Rating Event.

“Continuing Director” means, as of any date of determination, any member of the Company’s Board of Directors who (1) was a member of such Board of Directors on the date of the issuance of the Notes; or (2) was nominated for election or elected to such Board of Directors with the approval of a majority of the Continuing Directors who were members of such Board of Directors at the time of such nomination or election (either by a specific vote or by approval of the Company’s proxy statement in which such member was named as a nominee for election as a director, without objection to such nomination).

“Investment Grade Rating” means a rating equal to or higher than Baa3 (or the equivalent) by Moody’s and BBB- (or the equivalent) by S&P.

“Moody’s” means Moody’s Investors Service, Inc., or its successor.

“Rating Agencies” means (1) each of Moody’s and S&P; and (2) if any of Moody’s or S&P ceases to rate the Notes or fails to make a rating of the Notes publicly available for reasons outside of the Company’s control, a “nationally recognized statistical rating organization” within the meaning of Rule 3(a)(62) under the Exchange Act selected by the Company (as certified by a resolution of the Company’s Board of Directors) as a replacement agency for Moody’s or S&P, or both of them, as the case may be.

“S&P” means S&P Global Ratings, a division of S&P Global Inc., or its successor.

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The Notes are in registered form without coupons in denominations of $2,000 and integral multiples of $1,000 in excess thereof. Holders of Notes may transfer or exchange Notes in accordance with the Indenture. The Registrar may require a Holder of Notes, among other things, to furnish appropriate endorsements or transfer documents and to pay any taxes and fees required by law or permitted by the Indenture. The Registrar need not register the transfer of or exchange any Notes selected for redemption (except, in the case of a Note to be redeemed in part, the portion of the Note not to be redeemed) or any Notes for a period of 15 days before a selection of Notes to be redeemed or 15 days before an interest payment date.

The registered Holder of this Note may be treated as the sole owner of such Note for all purposes.

Subject to applicable abandoned property law, if money for the payment of principal or interest remains unclaimed for two years, the Trustee or Paying Agent shall pay the money back to the Company at its request unless an abandoned property law designates another Person. After any such payment, Holders entitled to the money must look only to the Company and not to the Trustee or Paying Agent for payment.

Subject to certain conditions, the Company at any time may terminate some or all of its obligations under the Notes and the Indenture if the Company deposits with the Trustee money or U.S. Government Obligations for the payment of principal and interest on the Notes to redemption or maturity, as the case may be.

Subject to certain exceptions set forth in the Indenture, (i) the Indenture or the Notes may be amended with the written consent of the Holders of at least a majority in principal amount outstanding of the Notes; and (ii) any default or compliance with any provision may be waived with the written consent of the Holders of a majority in principal amount of the Notes then outstanding. Subject to certain exceptions set forth in the Indenture, without the consent of any Holder of a Note, the Company and the Trustee may amend the Indenture or the Notes to cure any ambiguity, omission, defect or inconsistency that does not materially and adversely affect the rights of any Holder of a Note, or to comply with Article 5 of the Indenture or to comply with requirements of the SEC in connection with the qualification of the Indenture under the TIA.

If an Event of Default occurs and is continuing, the Trustee or the Holders of at least 25% in aggregate principal amount of the Notes may declare all the Notes to be due and payable immediately. Certain events of bankruptcy or insolvency are Events of Default which will result in the Notes being due and payable immediately upon the occurrence of such Events of Default.

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Holders of Notes may not enforce the Indenture or the Notes except as provided in the Indenture. The Trustee may refuse to enforce the Indenture or the Notes unless it receives indemnity or security satisfactory to it. Subject to certain limitations, Holders of a majority in principal amount of the Notes may direct the Trustee in its exercise of any trust or power. The Trustee may withhold from Holders of Notes notice of any continuing Default (except a Default in payment of principal or interest) if it determines that withholding such notice is in the interest of the Holders of Notes.

Subject to certain limitations imposed by the TIA, the Trustee under the Indenture, in its individual or any other capacity, may become the owner or pledgee of Notes and may otherwise deal with and collect obligations owed to it by the Company or its Affiliates and may otherwise deal with the Company or its Affiliates with the same rights it would have if it were not Trustee.

A director, officer, employee or stockholder, as such, of the Company or the Trustee shall not have any liability for any obligations of the Company under the Notes or the Indenture or for any claim based on, in respect of or by reason of such obligations. By accepting a Note, each Holder of a Note waives and releases all such liability. The waiver and release are part of the consideration for the issue of the Notes.

This Note shall not be valid until an authorized signatory of the Trustee (or an authenticating agent) manually signs the certificate of authentication on the face of this Note.

Customary abbreviations may be used in the name of a Holder of a Note or an assignee, such as TEN COM (=tenants in common), TEN ENT (=tenants by the entireties), JT TEN (=joint tenants with rights of survivorship and not as tenants in common), CUST (=custodian), and U/G/M/A (=Uniform Gift to Minors Act).

This Note shall be governed by, and construed in accordance with, the laws of the State of New York.

Pursuant to the recommendation promulgated by the Committee on Uniform Security Identification Procedures, the Company has caused CUSIP numbers to be printed on the Notes and has directed the Trustee to use such CUSIP numbers in notices of redemption as a

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convenience to Holders of Notes. No representation is made as to the accuracy of such numbers either as printed on the Notes or as contained in any notice of redemption and reliance may be placed only on the other identification numbers placed thereon.

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The Company will furnish to any Holder of a Note upon written request and without charge to such Holder of a Note a copy of the Indenture. Requests may be made to:

CVS Health Corporation

One CVS Drive — MC 1008

Woonsocket, Rhode Island 02895

Attention: Valerie Haertel

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ASSIGNMENT FORM

To assign this Note, complete the form below:

I or we assign and transfer this Note to:

[Print or type assignee’s name, address and zip code]

[Insert assignee’s soc. sec. or tax I.D. No.]

and irrevocably appoint                                  as agent to

transfer this Note on the books of CVS Health Corporation.

The agent may substitute another to act for him.

Sign exactly as your name appears on the face of this Note.

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