Exhibit 4.2

FORM OF AMENDED AND RESTATED JUNE 2010 WARRANT

NEITHER THE ISSUANCE AND SALE OF THE SECURITIES REPRESENTED BY THIS CERTIFICATE NOR THE SECURITIES INTO WHICH THESE SECURITIES ARE EXERCISABLE HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR APPLICABLE STATE SECURITIES LAWS. THE SECURITIES MAY NOT BE OFFERED FOR SALE, SOLD, TRANSFERRED OR ASSIGNED (I) IN THE ABSENCE OF (A) AN EFFECTIVE REGISTRATION STATEMENT FOR THE SECURITIES UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR (B) AN OPINION OF COUNSEL TO THE HOLDER (IF REQUESTED BY THE COMPANY), IN A FORM REASONABLY ACCEPTABLE TO THE COMPANY, THAT REGISTRATION IS NOT REQUIRED UNDER SAID ACT OR (II) UNLESS SOLD OR ELIGIBLE TO BE SOLD PURSUANT TO RULE 144 OR RULE 144A UNDER SAID ACT. NOTWITHSTANDING THE FOREGOING, THE SECURITIES MAY BE PLEDGED IN CONNECTION WITH A BONA FIDE MARGIN ACCOUNT OR OTHER LOAN OR FINANCING ARRANGEMENT SECURED BY THE SECURITIES.

EMISPHERE TECHNOLOGIES, INC.

WARRANT

Emisphere Technologies, Inc., a Delaware corporation (the “Company”), hereby certifies that, for value received, [MHR entity] or its registered assigns (the “Holder”), is entitled to purchase from the Company up to a total of [                ] shares of common stock, $0.01 par value per share (the “Common Stock”), of the Company (as adjusted from time to time as provided in Section 7, each such share, a “Warrant Share” and all such shares, the “Warrant Shares”) at an exercise price equal to $0.50 (as adjusted from time to time as provided in Section 7, the “Exercise Price”), at any time and from time to time, in whole or in part, on or after the date hereof through and including July 8, 2019 (the “Expiration Date”), and subject to the following terms and conditions.

1. Registration of Warrant. The Company shall register this Warrant, upon records to be maintained by the Company for that purpose (the “Warrant Register”), in the name of the record Holder hereof from time to time. The Company may deem and treat the registered Holder of this Warrant as the absolute owner hereof for the purpose of any exercise hereof or any distribution to the Holder, and for all other purposes, absent actual notice to the contrary.

2. Registration of Transfers. The Company shall register the transfer of any portion of this Warrant in the Warrant Register, upon surrender of this Warrant, with the Form of Assignment attached hereto duly completed and signed, to the Transfer Agent or to the Company at its address specified herein. Upon any such registration or transfer, a new warrant to purchase

Common Stock, in substantially the form of this Warrant (any such new warrant, a “New Warrant”), evidencing the portion of this Warrant so transferred shall be issued to the transferee and a New Warrant evidencing the remaining portion of this Warrant not so transferred, if any, shall be issued to the transferring Holder. The acceptance of the New Warrant by the transferee thereof shall be deemed the acceptance by such transferee of all of the rights and obligations of a holder of a Warrant.

3. Exercise and Duration of Warrant.

(a) This Warrant shall be exercisable by the registered Holder at any time and from time, in whole or in part, on or after the date hereof to and including the Expiration Date. At 5:00 P.M., New York City time on the Expiration Date, the portion of this Warrant not exercised prior thereto shall be and become void and of no value.

(b) A Holder may exercise this Warrant by delivering to the Company (i) an exercise notice, in the form attached hereto (the “Exercise Notice”), appropriately completed and duly signed, and (ii) payment of the Exercise Price for the number of Warrant Shares as to which this Warrant is being exercised, and the date such items are delivered to the Company (as determined in accordance with the notice provisions hereof) is an “Exercise Date.”

(c) The Company shall have a sufficient number of authorized but unissued and otherwise unreserved shares of Common Stock available to issue Warrant Shares upon exercise of the Warrant.

4. Delivery of Warrant Shares.

(a) Upon exercise of this Warrant, the Company shall promptly (but in no event later than three trading days after the Exercise Date) issue or cause to be issued and cause to be delivered to or upon the written order of the Holder and in such name or names as the Holder may designate, a certificate for the Warrant Shares issuable upon such exercise, free of restrictive legends. If the Holder provides or previously provided the necessary account information to the Company, the Company shall issue and deliver such Warrant Shares in a balance account of the Holder with the Depository Trust Company through its Deposit Withdrawal Agent Commission System. The Holder, or any person or entity so designated by the Holder to receive Warrant Shares, shall be deemed to have become holder of record of such Warrant Shares as of the Exercise Date. The Company shall, upon request of the Holder, use commercially reasonable efforts to deliver Warrant Shares hereunder electronically through the Depository Trust Corporation or another established clearing corporation performing similar functions.

(b) This Warrant is exercisable on or after the date hereof, either in its entirety or, from time to time, for a portion of the number of Warrant Shares. Upon surrender of this Warrant following one or more partial exercises, the Company shall issue or cause to be issued, at its expense, a New Warrant evidencing the right to purchase the remaining number of Warrant Shares.

(c) In addition to any other rights available to the Holder, if the Company fails to deliver to the Holder a certificate representing Warrant Shares by the third trading day after the date on which delivery of such certificate is required by this Warrant, and if after such third trading day, but prior to cure by the Company, the Holder purchases (in an open market

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transaction or otherwise) shares of Common Stock to deliver in satisfaction of a sale by the Holder of the Warrant Shares that the Holder anticipated receiving from the Company (a “Buy-In”), then the Company shall, within three trading days after the Holder’s request and in the Holder’s discretion, either (i) pay cash to the Holder in an amount equal to the Holder’s total purchase price (including brokerage commissions, if any) for the shares of Common Stock so purchased less the aggregate Exercise Price (the “Buy-In Price”), at which point the Company’s obligation to deliver such certificate (and to issue such Common Stock), solely with respect to such exercise, shall terminate, or (ii) promptly honor its obligation to deliver to the Holder a certificate or certificates representing such Common Stock and pay cash to the Holder in an amount equal to the excess (if any) of the Buy-In Price over the product of (A) such number of shares of Common Stock, times (B) the closing price on the date of the event giving rise to the Company’s obligation to deliver such certificate.

(d) The Company’s obligations to issue and deliver Warrant Shares in accordance with the terms hereof are absolute and unconditional, irrespective of any action or inaction by the Holder to enforce the same, any waiver or consent with respect to any provision hereof, the recovery of any judgment against any person or entity or any action to enforce the same, or any setoff, counterclaim, recoupment, limitation or termination, or any breach or alleged breach by the Holder or any other person or entity of any obligation to the Company or any violation or alleged violation of law by the Holder or any other person or entity, and irrespective of any other circumstance which might otherwise limit such obligation of the Company to the Holder in connection with the issuance of Warrant Shares. Nothing herein shall limit the Holder’s right to pursue any other remedies available to it hereunder, at law or in equity including, without limitation, a decree of specific performance and/or injunctive relief with respect to the Company’s failure to timely deliver certificates representing shares of Common Stock upon exercise of this Warrant as required pursuant to the terms hereof.

5. Charges, Taxes and Expenses. Issuance and delivery of certificates for shares of Common Stock upon exercise of this Warrant shall be made without charge to the Holder for any issue or transfer tax, withholding tax, transfer agent fee or other incidental tax or expense in respect of the issuance of such certificates, all of which taxes and expenses shall be paid by the Company; provided, however, that the Company shall not be required to pay any tax which may be payable in respect of any transfer involved in the registration of any certificates for Warrant Shares or Warrant in a name other than that of the Holder or an affiliate thereof. The Holder shall be responsible for all other tax liability that may arise as a result of holding or transferring this Warrant or receiving Warrant Shares upon exercise hereof.

6. Reservation of Warrant Shares. The Company covenants that it will at all times reserve and keep available out of the aggregate of its authorized but unissued and otherwise unreserved Common Stock, solely for the purpose of enabling it to issue Warrant Shares upon exercise of this Warrant as herein provided, the number of Warrant Shares which are then issuable and deliverable upon the exercise of this entire Warrant, free from preemptive rights or any other contingent purchase rights of persons other than the Holder (taking into account the adjustments of Section 7). The Company covenants that all Warrant Shares so issuable and deliverable shall, upon issuance and the payment of the applicable Exercise Price in accordance with the terms hereof, be duly and validly authorized, issued and fully paid and nonassessable. The Company will take all such action as may be necessary to assure that such shares of

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Common Stock may be issued as provided herein without violation of any applicable law or regulation, or of any requirements of any securities exchange or automated quotation system upon which the Common Stock may be listed.

7. Certain Adjustments. The Exercise Price and number of Warrant Shares issuable upon exercise of this Warrant are subject to adjustment from time to time as set forth in this Section 7.

(a) Stock Dividends and Splits.

(i) If the Company, at any time while this Warrant is outstanding, (A) pays a stock dividend on its Common Stock or otherwise makes a distribution on any class of capital stock that is payable in shares of Common Stock, (B) subdivides outstanding shares of Common Stock into a larger number of shares, or (C) combines outstanding shares of Common Stock into a smaller number of shares, then in each such case the Exercise Price shall be multiplied by a fraction of which the numerator shall be the number of shares of Common Stock outstanding immediately before such event and of which the denominator shall be the number of shares of Common Stock outstanding immediately after such event. Any adjustment made pursuant to clause (A) of this paragraph shall become effective immediately after the record date for the determination of stockholders entitled to receive such dividend or distribution, and any adjustment pursuant to clause (B) or (C) of this paragraph shall become effective immediately after the effective date of such subdivision or combination.

(ii) Number of Warrant Shares. Simultaneously with any adjustment to the Exercise Price pursuant to paragraph (a)(i) of this Section, the number of Warrant Shares that may be purchased upon exercise of this Warrant shall be increased or decreased proportionately, so that after such adjustment the aggregate Exercise Price payable hereunder for the increased or decreased number of Warrant Shares shall be the same as the aggregate Exercise Price in effect immediately prior to such adjustment.

(b) Adjustment for Reclassification, Exchange and Substitution. If at any time while this Warrant is outstanding, the Common Stock issuable upon exercise of this Warrant is changed into the same or a different number of shares of any class or classes of stock, this Warrant will thereafter represent the right to acquire such number and kind of securities as would have been issuable as a result of exercise of this Warrant and the Exercise Price therefor shall be appropriately adjusted, all subject to further adjustment in this Section 7.

(c) Adjustments for Other Dividends and Distributions. In the event the Company, at any time or from time to time while this Warrant is outstanding, shall make or issue, or fix a record date for the determination of holders of Common Stock entitled to receive, a dividend or other distribution payable in securities of the Company (other than shares of Common Stock) or in cash or other property (other than cash out of earnings or earned surplus, determined in accordance with generally accepted accounting principles), then and in each such event provision shall be made so that the Holder shall receive upon exercise hereof, in addition to the number of shares of Common Stock issuable hereunder, the kind and amount of securities of the Company and/or cash and other property which the Holder would have been entitled to receive had this Warrant been exercised into Common Stock on the date of such event and had the Holder thereafter, during the period from the date of such event to and including the Exercise Date, retained any such securities receivable, giving application to all adjustments called for during such period under this Section 7 with respect to the rights of the Holder.

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(d) Adjustment for Mergers or Reorganizations, etc. Any reorganization, recapitalization, reclassification, consolidation, merger, sale of all or substantially all of the Company’s assets or other transaction involving the Company in which the Common Stock is converted into or exchanged for securities, cash or other property while this Warrant is outstanding (other than a transaction covered by Sections 7(a) or (c)) is referred to herein as an “Organic Change”. Prior to the consummation of any such Organic Change, the Company shall make appropriate provision (as determined in good faith by the Board of Directors of the Company and the Holder) to ensure that the Holder shall have the right to receive, in lieu of or in addition to (as the case may be) such shares of Common Stock immediately acquirable and receivable upon exercise of this Warrant, the kind and amount of securities, cash or other property as may be issued or payable with respect to or in exchange for the number of shares of Common Stock immediately acquirable and receivable upon exercise of this Warrant had such Organic Change not taken place. In such case, appropriate adjustment (as determined in good faith by the Board of Directors of the Company and the Holder) shall be made with respect to the Holder’s rights and interests to ensure that the provisions of this Section 7 shall thereafter be applicable to the Warrant (including, in the case of any Organic Change where the successor entity or purchasing entity is other than the Company, an immediate reduction to the Exercise Price to the value of the Common Stock reflected by the terms of the Organic Change and a corresponding increase in the number of shares of Common Stock acquirable and receivable upon exercise of this Warrant, if the value so reflected is less than the Exercise Price then in effect immediately prior to such Organic Change). The Company shall not effect any reorganization, recapitalization, consolidation or merger unless, prior to the consummation thereof, the successor entity (if other than the Company) resulting from the consolidation or merger or the entity purchasing such assets assumes by written instrument (in form and substance satisfactory to the Holder) the obligation to deliver to the Holder such shares of stock, securities or assets as, in accordance with the foregoing provisions, the Holder may be entitled to acquire; provided, that any assumption shall not relieve the Company of its obligations hereunder.

(e) Adjustments to the Conversion Prices for Certain Dilutive Issuances.

(i) Special Definitions. For purposes of this Section 7(e), the following definitions apply:

(A) “Additional Shares of Common Stock” shall mean all shares of Common Stock issued (or, pursuant to Section 7(e)(iii), deemed to be issued) by the Company after the original issue date of this Warrant other than shares of Common Stock issued or issuable:

(1) to officers, directors or employees of, or consultants to, the Company pursuant to stock option or stock purchase plans or agreements in effect on or prior to September 26, 2005 and on terms approved by the Company’s Board of Directors and granted, sold or awarded in the ordinary course of business and consistent with past practice;

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(2) for an aggregate consideration (determined pursuant to Section 7(e)(v) hereof) of not more than $10,000,000 during any 24-month period;

(3) for which adjustment of the Exercise Price is made pursuant to Section 7(e)(iv).

(B) “Convertible Securities” shall mean any evidences of indebtedness, shares or other securities convertible into or exchangeable for Common Stock.

(C) “Options” shall mean rights, options or warrants to subscribe for, purchase or otherwise acquire either Common Stock or Convertible Securities.

(ii) No Adjustment of Exercise Price. Any provision herein to the contrary notwithstanding, no adjustment to the Exercise Price shall be made in respect of the issuance of Additional Shares of Common Stock unless the consideration per share (determined pursuant to Section 7(e)(v) hereof) for an Additional Share of Common Stock issued or deemed to be issued by the Company is less than the Exercise Price in effect on the date of, and immediately prior to, such issue.

(iii) Deemed Issuance of Additional Shares of Common Stock. In the event the Company, at any time or from time to time while this Warrant is outstanding, shall issue any Options or Convertible Securities or shall fix a record date for the determination of holders of any class of securities then entitled to receive any such Options or Convertible Securities, then the maximum number of shares (as set forth in the instrument relating thereto without regard to any provisions contained therein designed to protect against dilution) of Common Stock issuable upon the exercise of such Options or, in the case of Convertible Securities and Options therefor, the conversion or exchange of such Convertible Securities, shall be deemed to be Additional Shares of Common Stock issued as of the time of such issuance or, in case such a record date shall have been fixed, as of the close of business on such record date, provided further that in any such case in which Additional Shares of Common Stock are deemed to be issued:

(A) no further adjustments to the Exercise Price shall be made upon the subsequent issue of Convertible Securities or shares of Common Stock upon the exercise of such Options or conversion or exchange of such Convertible Securities;

(B) if such Options or Convertible Securities by their terms provide, with the passage of time or otherwise, for any increase in the consideration payable to the Company, or decrease in the number of shares of Common Stock issuable, upon the exercise, conversion or exchange thereof, the Exercise Price computed upon the original issue thereof (or upon the occurrence of a record date with respect thereto), and any subsequent adjustments based thereon, shall, upon any such increase or decrease becoming effective, be recomputed to reflect such increase or decrease insofar as it affects such Options or the rights of conversion or exchange under such Convertible Securities (provided, however, that no such adjustment of the Exercise Price shall effect Common Stock previously issued upon conversion of the Company’s preferred stock); and

(C) no readjustment pursuant to clause (A) or (B) above shall have the effect of increasing the Exercise Price to an amount which exceeds the lower of (i) the Exercise Price on the original adjustment date or (ii) the Exercise Price that would have resulted from any issuance of Additional Shares of Common Stock between the original adjustment date and such readjustment date.

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(iv) Adjustment of Exercise Price Upon Issuance of Additional Shares of Common Stock. (a) Subject to the last sentence of subsection (b) below, in the event the Company, at any time while this Warrant is outstanding, shall issue Additional Shares of Common Stock (including Additional Shares of Common Stock deemed to be issued pursuant to Section 7(e)(iii) without consideration or for consideration per share less than the closing price per Share of Common Stock as reported on a publicly traded exchange (“Market Price”) on the last full trading day immediately prior to such issue, then the Exercise Price shall be reduced, concurrently with such issue, to a price (calculated to the nearest cent) determined by multiplying the Exercise Price then in effect, by a fraction, the numerator of which shall be the number of shares of Common Stock outstanding immediately prior to such issue plus the number of shares of Common Stock which the aggregate consideration received by the Company for the total number of Additional Shares of Common Stock so issued would purchase at the Market Price in effect immediately prior to such issuance, and the denominator of which shall be the number of shares of Common Stock outstanding immediately prior to such issue plus the number of such Additional Shares of Common Stock so issued. For the purpose of the above calculation, the number of shares of Common Stock outstanding immediately prior to such issue shall be calculated on a fully diluted basis, as if all Convertible Securities had been fully converted into shares of Common Stock and any outstanding Options bearing an exercise price which is lower than the price at which the Additional Shares of Common Stock were issued had been fully exercised (and the resulting securities fully converted into shares of Common Stock, if so convertible) as of such date.

Upon each adjustment of the Exercise Price as a result of the calculations made in this Section 7(e) (including those resulting from issuances of Additional Shares of Common Stock deemed to be issued pursuant to Section 7(e)(iii)), the number of Warrant Shares shall be adjusted by multiplying such number of Warrant Shares by a fraction, the numerator of which shall be the Exercise Price in effect immediately prior to such adjustment and the denominator of which shall be the Exercise Price in effect after giving effect to such adjustment.

(b) In the event the Company, at any time while this Warrant is outstanding, shall issue Additional Shares of Common Stock (including Additional Shares of Common Stock deemed to be issued pursuant to Section 7(e)(iii)) with a purchase price, conversion price or exercise price, respectively, that is less than the Exercise Price in effect immediately prior to the time of such issuance or sale, then and in each such case the then-existing Exercise Price shall be reduced, as of the close of business on the effective date of such issuance or sale, to the lowest purchase price, conversion price or exercise price at which any Additional Shares of Common Stock were issued or sold. In the event that both subsections (iv)(a) and (iv)(b) hereof may apply to any issuance, sale or deemed issuance or sale, then only this section (b) shall be deemed to apply to such transaction.

(v) Determination of Consideration. For purposes of this Section 7(e), the consideration received by the Company in connection with the issuance of any Additional Shares of Common Stock shall be computed as follows:

(A) Cash and Property. Such consideration shall:

(1) insofar as it consists of cash, be computed at the aggregate amount of cash received by the Company, excluding amounts paid or payable for accrued interest or accrued dividends;

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(2) insofar as it consists of property other than cash, be computed at the fair value thereof at the time of such issuance, as determined by the Board of Directors in good faith; and

(3) in the event Additional Shares of Common Stock are issued together with other shares or securities or other assets of the Company for consideration which covers both cash and property, be the proportion of such consideration so received, computed as provided in clauses (I) and (2) above, as determined by the Board of Directors in good faith.

(B) Options and Convertible Securities. The consideration per share received by the Company for Additional Shares of Common Stock deemed to have been issued pursuant to Section 7(e)(iii) relating to Options and Convertible Securities shall be determined by dividing:

(i) the total amount, if any, received or receivable by the Company as consideration for the issuance of such Options or Convertible Securities, plus the minimum aggregate amount of additional consideration (as set forth in the instruments relating thereto, without regard to any provision contained therein designed to protect against dilution) payable to the Company upon the exercise of such Options or the conversion or exchange of such Convertible Securities, or in the case of Options for Convertible Securities, the exercise of such Options for Convertible Securities and the conversion or exchange of such Convertible Securities, by

(ii) the maximum number of shares of Common Stock (as set forth in the instruments relating thereto, without regard to any provision contained therein designed to protect against the dilution) issuable upon the exercise of such Options or conversion or exchange of such Convertible Securities, or in the case of Options for Convertible Securities, the exercise of such Options for Convertible Securities and the conversion or exchange of such Convertible Securities.

(f) Other Events. If any event occurs that would adversely affect the Holder’s rights but not expressly provided for by this Section 7 (including, without limitation, the granting of stock appreciation rights, phantom stock rights or other rights with equity features), then the Company’s Board of Directors will make an appropriate adjustment in the Exercise Price and number of Warrant Shares subject to this Warrant so as to protect the Holder’s rights; provided, however, that no such adjustment will increase the Exercise Price or decrease the number of shares of Common Stock obtainable as otherwise determined pursuant to this Section 7.

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(g) Calculations. All calculations under this Section 7 shall be made to the nearest cent or the nearest 1/100th of a share, as applicable. The number of shares of Common Stock outstanding at any given time shall not include shares owned or held by or for the account of the Company, and the disposition of any such shares shall be considered an issue or sale of Common Stock.

(h) Notice of Adjustments. Upon the occurrence of each adjustment pursuant to this Section 7, the Company at its expense will promptly compute such adjustment in accordance with the terms of this Warrant and prepare a certificate setting forth such adjustment, including a statement of the adjusted Exercise Price and adjusted number or type of Warrant Shares or other securities issuable upon exercise of this Warrant (as applicable), describing the transactions giving rise to such adjustments and showing in detail the facts upon which such adjustment is based. Upon written request, the Company will promptly deliver a copy of each such certificate to the Holder and to the Company’s Transfer Agent.

(i) Notice of Corporate Events; Termination. If the Company (i) declares a dividend or any other distribution of cash, securities or other property in respect of its Common Stock, including without limitation any granting of rights or warrants to subscribe for or purchase any capital stock of the Company or any Subsidiary, (ii) authorizes or approves, enters into any agreement contemplating, or solicits. stockholder approval for any merger, sale or similar transaction pursuant to which Common Stock is converted or exchanged for cash, securities or property or (iii) authorizes the voluntary dissolution, liquidation or winding up of the affairs of the Company, then the Company shall deliver to the Holder a notice describing the material terms and conditions of such transaction at least 15 calendar days prior to the applicable record or effective date on which a person would need to hold Common Stock in order to participate in or vote with respect to such transaction, and the Company will take all steps reasonably necessary in order to insure that the Holder is given the practical opportunity to exercise this Warrant prior to such time so as to participate in or vote with respect to such transaction; provided, however, that the failure to deliver such notice or any defect therein shall not affect the validity of the corporate action required to be described in such notice.

8. Payment of Exercise Price. The Holder shall pay the Exercise Price by (i) paying to the Company cash in immediately available funds or (ii) providing a written notice to the Company that the Holder is exercising this Warrant on a “cashless” exercise basis by authorizing the Company to withhold from issuance a number of shares of Common Stock issuable upon such exercise of this Warrant which, when multiplied by the Fair Market Value of the Common Stock is equal to the aggregate Exercise Price (and such withheld shares shall no longer be issuable under this Warrant). For purposes hereof, “Fair Market Value” means:

(a) If the security is traded on a securities exchange or through the NASDAQ National Market, the Fair Market Value shall be deemed to be the average of the closing prices of the securities on such exchange or quotation system, or, if there has been no sales on any such exchange or quotation system on any day, the average of the highest bid and lowest asked prices on such exchange or quotation system as of 4:00 p.m., New York time, or, if on any day such security is not traded on an exchange or quoted in the NASDAQ Stock Market System, the average of the highest bid and lowest asked prices on such day in the domestic over-the-counter market as reported by the National Quotation Bureau, Incorporated or any similar successor organization, in each such case averaged over a period of ten (10) business days consisting of the business day as of which Fair Market Value is being determined and the nine (9) consecutive business days prior to such day; or

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(b) If at any time such security is not listed on any securities exchange or quoted in the NASDAQ Stock Market System or the over-the-counter market, the Fair Market Value shall be the fair value thereof, as determined jointly by the Board of Directors and the Holder. If such parties are unable to reach agreement within a reasonable period of time, such fair value shall be determined by an independent appraiser experienced in valuing securities jointly selected by the Company’s Board of Directors and the Holder. The determination of the appraiser shall be final and binding upon the parties and the Company shall pay the fees and expenses of such appraiser.

9. Fractional Shares. The Company shall not be required to issue or cause to be issued fractional Warrant Shares on the exercise of this Warrant. If any fraction of a Warrant Share would, except for the provisions of this Section, be issuable upon exercise of this Warrant, the number of Warrant Shares to be issued will be rounded up to the nearest whole share.

10. Notices. Any and all notices or other communications or deliveries hereunder (including without limitation any Exercise Notice) shall be in writing and shall be deemed given and effective on the earliest of (i) the date of transmission, if such notice or communication is delivered via facsimile at the facsimile number specified in this Section prior to 5:00 p.m. (New York City time) on a trading day, (ii) the next trading day after the date of transmission, if such notice or communication is delivered via facsimile at the facsimile number specified in this Section on a day that is not a trading day or later than 5:00 p.m. (New York City time) on any trading day, (iii) the trading day following the date of mailing, if sent by nationally recognized overnight courier service, or (iv) upon actual receipt by the party to whom such notice is required to be given.

(a) If to the Company, to:

4 Becker Farm Road

Suite 103

Roseland, NJ 07068

Attention: Chief Financial Officer

Phone: (973) 532-8000

Fax: (973) 422-0125

Email: mgarone@emisphere.com

with a copy to:

Pierce Atwood LLP

100 Summer Street #2250

Boston, MA 02110

Attn: Timothy C. Maguire, Esq.

Phone: (617).488.8100

Fax: (617).824.2020

Email: tmaguire@pierceatwood.com

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(b) If to the Holder, to:

[MHR entity]

c/o MHR Fund Management LLC

40 West 57th Street, 24th Floor

New York, NY 10019

Fax number: (212) 262-9356

Attention: Janet Yeung

Phone: (212) 262-0005

Fax: (212) 262-9356

Email: jyeung@mhrfund.com

with a copy to:

O’Melveny & Myers LLP

7 Times Square

New York, NY 10036

Attn: Doron Lipshitz, Esq.

David Schultz, Esq

Phone: (212) 326-2000

Fax: (212) 326-2061

Email: dlipshitz@omm.com

dschultz@omm.com

11. Warrant Agent. The Company shall serve as warrant agent under this Warrant. Upon 30 days’ notice to the Holder, the Company may appoint a new warrant agent. Any corporation into which the Company or any new warrant agent may be merged or any corporation resulting from any consolidation to which the Company or any new warrant agent shall be a party or any corporation to which the Company or any new warrant agent transfers substantially all of its corporate trust or shareholders services business shall be a successor warrant agent under this Warrant without any further act. Any such successor warrant agent shall promptly cause notice of its succession as warrant agent to be mailed (by first class mail, postage prepaid) to the Holder at the Holder’s last address as shown on the Warrant Register.

12. Loss, Theft or Destruction of Warrant. In the event that the Holder notifies the Company that this Warrant has been lost, stolen or destroyed, then a replacement Warrant, identical in all respects to the original Warrant (except for any adjustment pursuant hereto to the Exercise Price or number of Warrant Shares issuable hereunder, if different from the numbers shown on the original Warrant) shall be delivered to the Holder by the Company, provided that the Holder executes and delivers to the Company an agreement reasonably satisfactory to the Company to indemnify the Company from any loss incurred by the Company in connection with such Warrant.

13. Miscellaneous.

(a) This Warrant may be assigned by the Holder. This Warrant may be amended only in writing signed by the Company and the Holder and their successors and assigns.

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(b) The Company will not, by amendment of its governing documents or through any reorganization, transfer of assets, consolidation, merger, dissolution, issue or sale of securities or any other voluntary action, avoid or seek to avoid the observance or performance of any of the terms of this Warrant, but will at all times in good faith assist in the carrying out of all such terms and in the taking of all such action as may be necessary or appropriate in order to protect the rights of the Holder against impairment. Without limiting the generality of the foregoing, the Company (i) will not increase the par value of any Warrant Shares above the amount payable therefor on such exercise, (ii) will take all such action as may be reasonably necessary or appropriate in order that the Company may validly and legally issue fully paid and nonassessable Warrant Shares on the exercise of this Warrant, and (iii) will not close its shareholder books or records in any mariner which interferes with the timely exercise of this Warrant.

(c) GOVERNING LAW; VENUE; WAIVER OF JURY TRIAL. THE CORPORATE LAWS OF THE STATE OF DELAWARE SHALL GOVERN ALL ISSUES CONCERNING THE RELATIVE RIGHTS OF THE COMPANY AND ITS STOCKHOLDERS. ALL QUESTIONS CONCERNING THE CONSTRUCTION, VALIDITY, ENFORCEMENT AND INTERPRETATION OF THIS WARRANT SHALL BE GOVERNED BY AND CONSTRUED AND ENFORCED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK. EACH PARTY HEREBY IRREVOCABLY SUBMITS TO THE EXCLUSIVE JURISDICTION OF THE STATE AND FEDERAL COURTS SITTING IN THE CITY OF NEW YORK, BOROUGH OF MANHATTAN, FOR THE ADJUDICATION OF ANY DISPUTE HEREUNDER OR IN CONNECTION HEREWITH OR WITH ANY TRANSACTION CONTEMPLATED HEREBY OR DISCUSSED HEREIN (INCLUDING WITH RESPECT TO THE ENFORCEMENT OF THE PURCHASE AGREEMENT), AND HEREBY IRREVOCABLY WAIVES, AND AGREES NOT TO ASSERT IN ANY SUIT, ACTION OR PROCEEDING, ANY CLAIM THAT IT IS NOT PERSONALLY SUBJECT TO THE JURISDICTION OF ANY SUCH COURT, THAT SUCH SUIT, ACTION OR PROCEEDING IS IMPROPER. EACH PARTY HEREBY IRREVOCABLY WAIVES PERSONAL SERVICE OF PROCESS AND CONSENTS TO PROCESS BEING SERVED IN ANY SUCH SUIT, ACTION OR PROCEEDING BY MAILING A COPY THEREOF VIA REGISTERED OR CERTIFIED MAIL OR OVERNIGHT DELIVERY (WITH EVIDENCE OF DELIVERY) TO SUCH PARTY AT THE ADDRESS IN EFFECT FOR NOTICES TO IT UNDER THIS WARRANT AND AGREES THAT SUCH SERVICE SHALL CONSTITUTE GOOD AND SUFFICIENT SERVICE OF PROCESS AND NOTICE THEREOF. NOTHING CONTAINED HEREIN SHALL BE DEEMED TO LIMIT IN ANY WAY ANY RIGHT TO SERVE PROCESS IN ANY MANNER PERMITTED BY LAW. THE COMPANY HEREBY WAIVES ALL RIGHTS TO A TRIAL BY JURY.

(d) The headings herein are for convenience only, do not constitute a part of this Warrant and shall not be deemed to limit or affect any of the provisions hereof.

(e) In case any one or more of the provisions of this Warrant shall be invalid or unenforceable in any respect, the validity and enforceability of the remaining terms and provisions of this Warrant shall not in any way be affected or impaired thereby and the parties will attempt in good faith to agree upon a valid and enforceable provision which shall be a commercially reasonable substitute therefor, and upon so agreeing, shall incorporate such substitute provision in this Warrant.

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[REMAINDER OF PAGE INTENTIONALLY LEFT BLANK,

SIGNATURE PAGE FOLLOWS]

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IN WITNESS WHEREOF, the Company has caused this Warrant to be duly executed by its authorized officer as of the date first indicated above.

[June 2010 Warrant Signature Page]

FORM OF EXERCISE NOTICE

(To be executed by the Holder to exercise the right to purchase shares of Common Stock under the foregoing Warrant)

To: Emisphere Technologies, Inc.

The undersigned is the Holder of Warrant No.      (the “Warrant”) issued by Emisphere Technologies, Inc., a Delaware corporation (the “Company”). Capitalized terms used herein and not otherwise defined have the respective meanings set forth in the Warrant.

The Warrant is currently exercisable to purchase a total of                  Warrant Shares.

The undersigned Holder hereby exercises its right to purchase                  Warrant Shares pursuant to the Warrant.

The holder shall pay the sum of $         to the Company or hereby exercises the Warrant on a “cashless exercise” basis in accordance with the terms of the Warrant.

Pursuant to this exercise, the Company shall deliver to the holder                  Warrant Shares in accordance with the terms of the Warrant.

Following this exercise, the Warrant shall be exercisable to purchase a total of Warrant Shares.

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FORM OF ASSIGNMENT

[To be completed and signed only upon transfer of Warrant]

FOR VALUE RECEIVED, the undersigned hereby sells, assigns and transfers unto                                          the right represented by the within Warrant to purchase                  shares of Common Stock of Emisphere Technologies, Inc. to which the within Warrant relates and appoints                                          attorney to transfer said right on the books of Emisphere Technologies, Inc. with full power of substitution in the premises.

Dated:             ,        

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