Form of Certificate of Designation of Preferences, Rights, and Limitations



 Exhibit 4.16 
 DARA BIOSCIENCES, INC. 
 CERTIFICATE OF DESIGNATION OF PREFERENCES,

 RIGHTS AND LIMITATIONS 
 OF 
 SERIES A CONVERTIBLE PREFERRED STOCK 

PURSUANT TO SECTION 151 OF THE 
 DELAWARE GENERAL CORPORATION LAW 
 The undersigned,
                 and                     , do hereby
certify that: 
       1. They are the President and Secretary, respectively, of
DARA BioSciences, Inc., a Delaware corporation (the “Corporation”). 

      2. The Corporation is authorized to issue one million shares of preferred stock, none
of which have been issued. 
       3. The following resolutions were duly adopted
by the board of directors of the Corporation (the “Board of Directors”): 
 WHEREAS, the
certificate of incorporation of the Corporation provides for a class of its authorized stock known as preferred stock, consisting of one million shares, $0.01 par value per share, issuable from time to time in one or more series; 

WHEREAS, the Board of Directors is authorized to fix the dividend rights, dividend rate, voting rights, conversion
rights, rights and terms of redemption and liquidation preferences of any wholly unissued series of preferred stock and the number of shares constituting any series and the designation thereof, of any of them; and 

WHEREAS, it is the desire of the Board of Directors, pursuant to its authority as aforesaid, to fix the rights,
preferences, restrictions and other matters relating to a series of the preferred stock, which shall consist of up to one million shares of the preferred stock which the Corporation has the authority to issue, as follows: 

NOW, THEREFORE, BE IT RESOLVED, that the Board of Directors does hereby provide for the issuance of a series of preferred
stock for cash or exchange of other securities, rights or property and does hereby fix and determine the rights, preferences, restrictions and other matters relating to such series of preferred stock as follows: 

  
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 TERMS OF PREFERRED STOCK 

    Section 1.     Definitions. For the purposes hereof,
the following terms shall have the following meanings: 

    “Affiliate” means any Person that, directly or indirectly
through one or more intermediaries, controls or is controlled by or is under common control with a Person, as such terms are used in and construed under Rule 405 of the Securities Act. 

    “Alternate Consideration” shall have the meaning set forth in
Section 7(e). 
     “Beneficial Ownership Limitation”
shall have the meaning set forth in Section 6(d). 

    “Business Day” means any day except any Saturday, any Sunday,
any day which is a federal legal holiday in the United States or any day on which banking institutions in the State of New York are authorized or required by law or other governmental action to close. 

    “Commission” means the United States Securities and Exchange
Commission. 
     “Common Stock” means the
Corporation’s common stock, par value $0.01 per share, and stock of any other class of securities into which such securities may hereafter be reclassified or changed. 

    “Common Stock Equivalents” means any securities of the
Corporation or the Subsidiaries which would entitle the holder thereof to acquire at any time Common Stock, including, without limitation, any debt, preferred stock, rights, options, warrants or other instrument that is at any time convertible into
or exercisable or exchangeable for, or otherwise entitles the holder thereof to receive, Common Stock. 
     “Conversion Date” shall have the meaning set forth in Section 6(a). 

    “Conversion Price” shall have the meaning set forth in
Section 6(b). 
     “Conversion Shares” means the
shares of Common Stock issuable upon conversion of the shares of Preferred Stock in accordance with the terms hereof. 
     “Exchange Act” means the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder. 

    “Fundamental Transaction” shall have the meaning set forth in
Section 7(e). 
     “Holder” shall have the meaning
given such term in Section 2. 

  
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     “Junior Securities” means the Common Stock and all other Common Stock Equivalents of the Corporation other than those securities which are explicitly senior or
pari passu to the Preferred Stock in dividend rights or liquidation preference. 

    “Liquidation” shall have the meaning set forth in
Section 5. 
     “Notice of Conversion” shall have
the meaning set forth in Section 8(b). 
     “Optional
Redemption” shall have the meaning set forth in Section 8(b). 

    “Optional Redemption Amount” means the sum of (a) 120% of
the then outstanding Stated Value of the Preferred Stock, (b) accrued but unpaid dividends and (c) all liquidated damages and other amounts due in respect of the Preferred Stock. 

    “Optional Redemption Date” shall have the meaning set forth in
Section 8(b). 
     “Optional Redemption Notice”
shall have the meaning set forth in Section 8(b). 

    “Optional Redemption Notice Date” shall have the meaning set
forth in Section 8(b). 
     “Optional Redemption
Period” shall have the meaning set forth in Section 8(b). 

    “Person” means an individual or corporation, partnership, trust,
incorporated or unincorporated association, joint venture, limited liability company, joint stock company, government (or an agency or subdivision thereof) or other entity of any kind. 

    “Preferred Stock” shall have the meaning set forth in
Section 2. 
     “Securities Act” means the
Securities Act of 1933, as amended, and the rules and regulations promulgated thereunder. 

    “Stated Value” shall have the meaning set forth in
Section 2. 
     “Successor Entity” shall have the
meaning set forth in Section 7(e). 
     “Trading
Day” means a day on which the principal Trading Market is open for trading, or if the Common Stock is not listed or quoted on any Trading Market, “Trading Day” means a “Business Day”. 

    “Trading Market” means any of the following markets or exchanges
on which the Common Stock is listed or quoted for trading on the date in question: the NYSE AMEX, the Nasdaq Capital Market, the Nasdaq Global Market, the Nasdaq Global Select Market, 

  
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the New York Stock Exchange or the OTC Bulletin Board (or any successors to any of the foregoing). 

    “Transfer Agent” means American Stock Transfer & Trust
Company LLC, the current transfer agent of the Company, with a mailing address of 6201 15th Avenue, 2nd Floor, Brooklyn, New York 11219 and a facsimile number of (718) 921-8323, and any successor transfer agent of the Company. 

    Section 2.      Designation, Amount and Par Value.
The series of preferred stock shall be designated as its Series A Convertible Preferred Stock (the “Preferred Stock”) and the number of shares so designated shall be up to 4,000 (which shall not be subject to increase without the
written consent of all of the holders of the Preferred Stock (each, a “Holder” and collectively, the “Holders”)). Each share of Preferred Stock shall have a par value of $0.01 per share and a stated value equal to
$1,000 (the “Stated Value”). 
     Section 3.
     Dividends. 

    a)      Dividends. Holders shall be entitled
to receive, and the Corporation shall pay, dividends on shares of Preferred Stock equal (on an as-if-converted-to-Common-Stock basis) to and in the same form as dividends (other than dividends in the form of Common Stock) actually paid on shares of
the Common Stock when, as and if such dividends (other than dividends in the form of Common Stock) are paid on shares of the Common Stock. Other than as set forth in the previous sentence, no other dividends shall be paid on shares of Preferred
Stock; and the Corporation shall pay no dividends (other than dividends in the form of Common Stock) on shares of the Common Stock unless it simultaneously complies with the previous sentence. 

    b)      Other Securities. So long as any
Preferred Stock shall remain outstanding, the Corporation shall not redeem, purchase or otherwise acquire directly or indirectly more than a de minimis amount of any Junior Securities other than as to repurchases of Common Stock or Common Stock
Equivalents from departing officers or directors, and provided that, while any of the Preferred Stock remains outstanding, such repurchases shall not exceed an aggregate of $100,00 in any fiscal year from all officers and directors. 

    Section 4.     Voting Rights. Except as otherwise
provided herein or as otherwise required by law, the Preferred Stock shall have no voting rights. However, as long as any shares of Preferred Stock are outstanding, the Corporation shall not, without the affirmative vote of the Holders of 50.1% or
more of the then outstanding shares of the Preferred Stock, (a) alter or change adversely the powers, preferences or rights given to the Preferred Stock or alter or amend this Certificate of Designation, (b) authorize or create any class
of stock ranking as to dividends, redemption or distribution of assets upon a Liquidation (as defined in Section 5) senior to, or otherwise pari passu with, the Preferred Stock, (c) amend its certificate of incorporation or
other charter documents in any manner that adversely affects any rights of the Holders, (d) increase the number of authorized shares of Preferred Stock, or (e) enter into any agreement with respect to any of the foregoing. 

  
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    Section 5.     Liquidation. Upon any liquidation,
dissolution or winding-up of the Corporation, whether voluntary or involuntary (a “Liquidation”), the Holders shall be entitled to receive out of the assets, whether capital or surplus, of the Corporation an amount equal to the
Stated Value, plus any accrued and unpaid dividends thereon and any other fees or liquidated damages then due and owing thereon under this Certificate of Designation, for each share of Preferred Stock before any distribution or payment shall be made
to the holders of any Junior Securities, and if the assets of the Corporation shall be insufficient to pay in full such amounts, then the entire assets to be distributed to the Holders shall be ratably distributed among the Holders in accordance
with the respective amounts that would be payable on such shares if all amounts payable thereon were paid in full. A Fundamental Transaction shall not be deemed a Liquidation. 

    Section 6.     Conversion. 

    a)        Conversions at Option of
Holder. Each share of Preferred Stock shall be convertible, at any time and from time to time from and after the Original Issue Date at the option of the Holder thereof, into that number of shares of Common Stock (subject to the limitations set
forth in Section 6(d)) determined by dividing the Stated Value of such share of Preferred Stock by the Conversion Price. Holders shall effect conversions by providing the Corporation with the form of conversion notice attached hereto as
Annex A (a “Notice of Conversion”). Each Notice of Conversion shall specify the number of shares of Preferred Stock to be converted, the number of shares of Preferred Stock owned prior to the conversion at issue, the number
of shares of Preferred Stock owned subsequent to the conversion at issue and the date on which such conversion is to be effected, which date may not be prior to the date the applicable Holder delivers by facsimile such Notice of Conversion to the
Corporation (such date, the “Conversion Date”). If no Conversion Date is specified in a Notice of Conversion, the Conversion Date shall be the date that such Notice of Conversion to the Corporation is deemed delivered hereunder. To
effect conversions of shares of Preferred Stock, a Holder shall not be required to surrender the certificate(s) representing the shares of Preferred Stock to the Corporation unless all of the shares of Preferred Stock represented thereby are so
converted, in which case such Holder shall deliver the certificate representing such shares of Preferred Stock promptly following the Conversion Date at issue. Shares of Preferred Stock converted into Common Stock or redeemed in accordance with the
terms hereof shall be canceled and shall not be reissued. 

    b)        Conversion Price. The
conversion price for the Preferred Stock shall equal $[          ], subject to adjustment herein (the “Conversion Price”). 

    c)    Mechanics of Conversion 

    i.      Delivery of Certificate Upon
Conversion. Certificates for Conversion Shares shall be transmitted by the Transfer Agent to the Holder by crediting the account of the Holder’s prime broker with the Depository Trust


  
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Company through its Deposit or Withdrawal Agent at Custodian system (“DWAC”) if the Company is then a participant in such system and there is an effective Registration Statement
permitting the issuance of the Conversion Shares to or resale of the Conversion Shares by Holder, and otherwise by physical delivery to the address specified by the Holder in the Notice of Exercise by the date that is three (3) Trading Days
after each Conversion Date. 

ii.          Reservation of Shares Issuable Upon
Conversion. The Corporation covenants that it will at all times reserve and keep available out of its authorized and unissued shares of Common Stock for the sole purpose of issuance upon conversion of the Preferred Stock as herein provided, free
from preemptive rights or any other actual contingent purchase rights of Persons other than the Holder (and the other holders of the Preferred Stock), not less than such aggregate number of shares of the Common Stock as shall be issuable (taking
into account the adjustments and restrictions of Section 7) upon the conversion of the then outstanding shares of Preferred Stock. The Corporation covenants that all shares of Common Stock that shall be so issuable shall, upon issue, be duly
authorized, validly issued, fully paid and nonassessable. 

iii.          Fractional Shares. No fractional
shares or scrip representing fractional shares shall be issued upon the conversion of the Preferred Stock. As to any fraction of a share which the Holder would otherwise be entitled to purchase upon such conversion, the Corporation shall at its
election, either pay a cash adjustment in respect of such final fraction in an amount equal to such fraction multiplied by the Conversion Price or round up to the next whole share. 

iv.          Transfer Taxes. The issuance of
certificates for shares of the Common Stock on conversion of this Preferred Stock shall be made without charge to any Holder for any documentary stamp or similar taxes that may be payable in respect of the issue or delivery of such certificates,
provided that the Corporation shall not be required to pay any tax that may be payable in respect of any transfer involved in the issuance and delivery of any such certificate upon conversion in a name other than that of the Holders of such shares
of Preferred Stock and the Corporation shall not be required to issue or deliver such certificates unless or until the Person or Persons requesting the issuance thereof shall have paid to the Corporation the amount of such tax or shall have
established to the satisfaction of the Corporation that such tax has been paid. 

    d)        Beneficial Ownership
Limitation. The Corporation shall not effect any conversion of the Preferred Stock, and a Holder shall not have the right to convert any portion of the Preferred Stock, to the extent that, after giving effect to the conversion set forth
on the applicable Notice of Conversion, such Holder (together with such Holder’s Affiliates, and any Persons acting as a group together with such Holder or any of such Holder’s Affiliates) would beneficially own in excess of the Beneficial
Ownership Limitation (as defined below). For purposes of the foregoing sentence, the number of 

  
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shares of Common Stock beneficially owned by such Holder and its Affiliates shall include the number of shares of Common Stock issuable upon conversion of the Preferred Stock with respect to
which such determination is being made, but shall exclude the number of shares of Common Stock which are issuable upon (i) conversion of the remaining, unconverted Stated Value of Preferred Stock beneficially owned by such Holder or any of its
Affiliates and (ii) exercise or conversion of the unexercised or unconverted portion of any other securities of the Corporation subject to a limitation on conversion or exercise analogous to the limitation contained herein beneficially owned by
such Holder or any of its Affiliates. Except as set forth in the preceding sentence, for purposes of this Section 6(d), beneficial ownership shall be calculated in accordance with Section 13(d) of the Exchange Act and the rules and
regulations promulgated thereunder. To the extent that the limitation contained in this Section 6(d) applies, the determination of whether the Preferred Stock is convertible (in relation to other securities owned by such Holder together with
any Affiliates) and of how many shares of Preferred Stock are convertible shall be in the sole discretion of such Holder, and the submission of a Notice of Conversion shall be deemed to be such Holder’s determination of whether the shares of
Preferred Stock may be converted (in relation to other securities owned by such Holder together with any Affiliates) and how many shares of the Preferred Stock are convertible, in each case subject to the Beneficial Ownership Limitation. To ensure
compliance with this restriction, each Holder will be deemed to represent to the Corporation each time it delivers a Notice of Conversion that such Notice of Conversion has not violated the restrictions set forth in this paragraph and the
Corporation shall have no obligation to verify or confirm the accuracy of such determination. In addition, a determination as to any group status as contemplated above shall be determined in accordance with Section 13(d) of the Exchange Act and
the rules and regulations promulgated thereunder. For purposes of this Section 6(d), in determining the number of outstanding shares of Common Stock, a Holder may rely on the number of outstanding shares of Common Stock as stated in the most
recent of the following: (i) the Corporation’s most recent periodic or annual report filed with the Commission, as the case may be, (ii) a more recent public announcement by the Corporation or (iii) a more recent written notice
by the Corporation or the Transfer Agent setting forth the number of shares of Common Stock outstanding. Upon the written or oral request of a Holder, the Corporation shall within two Trading Days confirm orally and in writing to such Holder
the number of shares of Common Stock then outstanding. In any case, the number of outstanding shares of Common Stock shall be determined after giving effect to the conversion or exercise of securities of the Corporation, including the Preferred
Stock, by such Holder or its Affiliates since the date as of which such number of outstanding shares of Common Stock was reported. The “Beneficial Ownership Limitation” shall be 4.99% of the number of shares of the Common Stock
outstanding immediately after giving effect to the issuance of shares of Common Stock issuable upon conversion of Preferred Stock held by the applicable Holder. A Holder, upon not less than 61 days’ prior notice to the Corporation, may increase
or decrease the Beneficial Ownership Limitation provisions of this Section 6(d) applicable to its Preferred Stock provided that the Beneficial Ownership Limitation in no event exceeds 9.99% of the number of shares of the Common Stock
outstanding immediately after giving effect to the issuance of shares of Common Stock 

  
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upon conversion of this Preferred Stock held by the Holder and the provisions of this Section 6(d) shall continue to apply. Any such increase or decrease will not be effective until the
61st day after such notice is delivered to the Corporation
and shall only apply to such Holder and no other Holder. The provisions of this paragraph shall be construed and implemented in a manner otherwise than in strict conformity with the terms of this Section 6(d) to correct this paragraph (or any
portion hereof) which may be defective or inconsistent with the intended Beneficial Ownership Limitation contained herein or to make changes or supplements necessary or desirable to properly give effect to such limitation. The limitations contained
in this paragraph shall apply to a successor holder of Preferred Stock. 

    Section 7.      Certain Adjustments.

     a)      Stock Dividends and Stock
Splits. If the Corporation, at any time while this Preferred Stock is outstanding: (i) pays a stock dividend or otherwise makes a distribution or distributions payable in shares of Common Stock on shares of Common Stock or any other Common
Stock Equivalents (which, for avoidance of doubt, shall not include any shares of Common Stock issued by the Corporation upon conversion of, or payment of a dividend on, this Preferred Stock), (ii) subdivides outstanding shares of Common Stock
into a larger number of shares, (iii) combines (including by way of a reverse stock split) outstanding shares of Common Stock into a smaller number of shares, or (iv) issues, in the event of a reclassification of shares of the Common
Stock, any shares of capital stock of the Corporation, then the Conversion Price shall be multiplied by a fraction of which the numerator shall be the number of shares of Common Stock (excluding any treasury shares of the Corporation) 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 this Section 7(a) shall become effective immediately after the
record date for the determination of stockholders entitled to receive such dividend or distribution and shall become effective immediately after the effective date in the case of a subdivision, combination or re-classification. 

    b)      Fundamental Transaction. If, at any
time while this Preferred Stock is outstanding, (i) the Corporation, directly or indirectly, in one or more related transactions effects any merger or consolidation of the Corporation with or into another Person, (ii) the Corporation,
directly or indirectly, effects any sale, lease, license, assignment, transfer, conveyance or other disposition of all or substantially all of its assets in one or a series of related transactions, (iii) any, direct or indirect, purchase offer,
tender offer or exchange offer (whether by the Corporation or another Person) is completed pursuant to which holders of Common Stock are permitted to sell, tender or exchange their shares for other securities, cash or property and has been accepted
by the holders of 50% or more of the outstanding Common Stock, (iv) the Corporation, directly or indirectly, in one or more related transactions effects any reclassification, reorganization or recapitalization of the Common Stock or any
compulsory share exchange pursuant to which the Common Stock is effectively converted into or exchanged for other securities, cash or property, (v)

  
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the Corporation, directly or indirectly, in one or more related transactions consummates a stock or share purchase agreement or other business combination (including, without limitation, a
reorganization, recapitalization, spin-off or scheme of arrangement) with another Person whereby such other Person acquires more than 50% of the outstanding shares of Common Stock (not including any shares of Common Stock held by the other Person or
other Persons making or party to, or associated or affiliated with the other Persons making or party to, such stock or share purchase agreement or other business combination) (each a “Fundamental Transaction”), then, upon any
subsequent conversion of this Preferred Stock, the Holder shall have the right to receive, for each Conversion Share that would have been issuable upon such conversion immediately prior to the occurrence of such Fundamental Transaction, the number
of shares of Common Stock of the successor or acquiring corporation or of the Corporation, if it is the surviving corporation, and any additional consideration (the “Alternate Consideration”) receivable as a result of such
Fundamental Transaction by a holder of the number of shares of Common Stock for which this Preferred Stock is convertible immediately prior to such Fundamental Transaction. For purposes of any such conversion, the determination of the Conversion
Price shall be appropriately adjusted to apply to such Alternate Consideration based on the amount of Alternate Consideration issuable in respect of one share of Common Stock in such Fundamental Transaction, and the Corporation shall apportion the
Conversion Price among the Alternate Consideration in a reasonable manner reflecting the relative value of any different components of the Alternate Consideration. If holders of Common Stock are given any choice as to the securities, cash or
property to be received in a Fundamental Transaction, then the Holder shall be given the same choice as to the Alternate Consideration it receives upon any conversion of this Preferred Stock following such Fundamental Transaction. The Corporation
shall cause any successor entity in a Fundamental Transaction in which the Corporation is not the survivor (the “Successor Entity”) to assume in writing all of the obligations of the Corporation under this Certificate of Designation
in accordance with the provisions of this Section 7(e). Upon the occurrence of any such Fundamental Transaction, the Successor Entity shall succeed to, and be substituted for (so that from and after the date of such Fundamental Transaction, the
provisions of this Certificate of Designation referring to the “Corporation” shall refer instead to the Successor Entity), and may exercise every right and power of the Corporation and shall assume all of the obligations of the Corporation
under this Certificate of Designation with the same effect as if such Successor Entity had been named as the Corporation herein. 
     c)       Calculations.  All calculations under this Section 7 shall be made to the nearest cent or the nearest 1/100th of a
share, as the case may be. For purposes of this Section 7, the number of shares of Common Stock deemed to be issued and outstanding as of a given date shall be the sum of the number of shares of Common Stock (excluding any treasury shares of
the Corporation) issued and outstanding. 

    d)      Notice to the Holders. 

  
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 i.        Adjustment to Conversion Price.  Whenever the Conversion Price is adjusted pursuant to any provision of this Section 7, the
Corporation shall promptly deliver to each Holder a notice setting forth the Conversion Price after such adjustment and setting forth a brief statement of the facts requiring such adjustment. 

    Section 8. 

    a)      Optional Redemption at Election of
Corporation.    Subject to the provisions of this Section 8(a), at any time after the date hereof, the Corporation may deliver a notice to the Holder (an “Optional Redemption Notice” and the date such notice is
deemed delivered hereunder, the “Optional Redemption Notice Date”) of its irrevocable election to redeem some or all of the then outstanding Preferred Stock for cash in an amount equal to the Optional Redemption Amount on the 20th Trading Day following the Optional Redemption Notice Date (such
date, the “Optional Redemption Date” and such redemption, the “Optional Redemption”). The Optional Redemption Amount is payable in full on the Optional Redemption Date. The Corporation covenants and agrees that it will honor all
Notices of Conversion tendered from the time of delivery of the Optional Redemption Notice through the date all amounts owing thereon are due and paid in full. The Corporation’s determination to pay an Optional Redemption in cash shall be
applied ratably to all of the holders of the then outstanding Preferred Stock. 

    b)      Redemption Procedure.  The
payment of cash pursuant to an Optional Redemption shall be payable on the Optional Redemption Date. Notwithstanding anything to the contrary in this Section 8, the Corporation’s determination to redeem in cash or its elections under
Section 8(b) shall be applied ratably among the Holders of the Preferred Stock. Any Holder may elect to convert its Preferred Stock pursuant to Section 4 prior to actual payment in cash for any redemption under this Section 8 by the
delivery of a Notice of Conversion to the Corporation. 

    Section 11.      Miscellaneous. 

    a)      Notices.  Any and all
notices or other communications or deliveries to be provided by the Holders hereunder including, without limitation, any Notice of Conversion, shall be in writing and delivered personally, by facsimile, or sent by a nationally recognized overnight
courier service, addressed to the Corporation, at the address set forth above Attention:
                            , facsimile number
                        , or such other facsimile number or address as the Corporation may specify for such purposes by
notice to the Holders delivered in accordance with this Section 11. Any and all notices or other communications or deliveries to be provided by the Corporation hereunder shall be in writing and delivered personally, by facsimile, or sent by a
nationally recognized overnight courier service addressed to each Holder at the facsimile number or address of such Holder appearing on the books of the Corporation. Any notice or other communication or deliveries hereunder shall be deemed given and
effective on the earliest of (i) the date of transmission, if such notice or communication is 

  
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delivered via facsimile at the facsimile number set forth in this Section prior to 5:30 p.m. (New York City time) on any date, (ii) the next Trading Day after the date of transmission, if
such notice or communication is delivered via facsimile at the facsimile number set forth in this Section on a day that is not a Trading Day or later than 5:30 p.m. (New York City time) on any Trading Day, (iii) the second Trading Day following
the date of mailing, if sent by U.S. nationally recognized overnight courier service, or (iv) upon actual receipt by the party to whom such notice is required to be given. 

    b)      Absolute Obligation. Except as
expressly provided herein, no provision of this Certificate of Designation shall alter or impair the obligation of the Corporation, which is absolute and unconditional, to pay liquidated damages, accrued dividends and accrued interest, as
applicable, on the shares of Preferred Stock at the time, place, and rate, and in the coin or currency, herein prescribed. 
     c)      Lost or Mutilated Preferred Stock Certificate.   If a Holder’s Preferred Stock certificate shall be mutilated, lost,
stolen or destroyed, the Corporation shall execute and deliver, in exchange and substitution for and upon cancellation of a mutilated certificate, or in lieu of or in substitution for a lost, stolen or destroyed certificate, a new certificate for
the shares of Preferred Stock so mutilated, lost, stolen or destroyed, but only upon receipt of evidence of such loss, theft or destruction of such certificate, and of the ownership hereof reasonably satisfactory to the Corporation. 

    d)      Governing Law.  All questions
concerning the construction, validity, enforcement and interpretation of this Certificate of Designation shall be governed by and construed and enforced in accordance with the internal laws of the State of Delaware, without regard to the principles
of conflict of laws thereof. 

    e)      Waiver.  Any waiver by the
Corporation or a Holder of a breach of any provision of this Certificate of Designation shall not operate as or be construed to be a waiver of any other breach of such provision or of any breach of any other provision of this Certificate of
Designation or a waiver by any other Holders. The failure of the Corporation or a Holder to insist upon strict adherence to any term of this Certificate of Designation on one or more occasions shall not be considered a waiver or deprive that party
(or any other Holder) of the right thereafter to insist upon strict adherence to that term or any other term of this Certificate of Designation on any other occasion. Any waiver by the Corporation or a Holder must be in writing. 

    f)      Severability. If any provision of
this Certificate of Designation is invalid, illegal or unenforceable, the balance of this Certificate of Designation shall remain in effect, and if any provision is inapplicable to any Person or circumstance, it shall nevertheless remain applicable
to all other Persons and circumstances. If it shall be found that any interest or other amount deemed interest due hereunder violates the applicable law governing usury, the applicable rate of interest due hereunder shall automatically be lowered to
equal the maximum rate of interest permitted under applicable law. 

  
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     g)      Next Business Day.  Whenever any payment or other obligation hereunder shall be due on a day other than a Business Day, such
payment shall be made on the next succeeding Business Day. 

    h)      Headings.  The headings
contained herein are for convenience only, do not constitute a part of this Certificate of Designation and shall not be deemed to limit or affect any of the provisions hereof. 

    i)      Status of Converted or Redeemed
Preferred Stock.     If any shares of Preferred Stock shall be converted, redeemed or reacquired by the Corporation, such shares shall resume the status of authorized but unissued shares of preferred stock and shall no longer
be designated as Series A Convertible Preferred Stock. 
 ********************* 

  
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 RESOLVED, FURTHER,
that the Chairman, the president or any vice-president, and the secretary or any assistant secretary, of the Corporation be and they hereby are authorized and directed to prepare and file this Certificate of Designation of Preferences, Rights and
Limitations in accordance with the foregoing resolution and the provisions of Delaware law. 
 IN WITNESS
WHEREOF, the undersigned have executed this Certificate this        day of [            ], 2010. 

 

									
	  
	 	 	 	  

	 	 	 Name:
	 	 	 	 	 	 Name:

		 	 Title:
	 		 		 	 Title:



  
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 ANNEX A

 NOTICE OF CONVERSION 
 (TO BE EXECUTED BY THE REGISTERED HOLDER IN ORDER TO CONVERT SHARES OF PREFERRED STOCK) 
 The undersigned hereby elects to convert the number of shares of Series A Convertible Preferred Stock indicated below into shares of common stock, par value $0.01 per share (the “Common
Stock”), of DARA BioSciences, Inc., a Delaware corporation (the “Corporation”), according to the conditions hereof, as of the date written below. If shares of Common Stock are to be issued in the name of a Person other than
the undersigned, the undersigned will pay all transfer taxes payable with respect thereto and is delivering herewith such certificates and opinions as may be required by the Corporation in accordance with the Purchase Agreement. No fee will be
charged to the Holders for any conversion, except for any such transfer taxes. 
 Conversion calculations: 

Date to Effect Conversion: _______________________________________________________ 

Number of shares of Preferred Stock owned prior to Conversion: 
_________________________ 

Number of shares of Preferred Stock to be Converted: 
_________________________________ 

Stated Value of shares of Preferred Stock to be Converted: 
______________________________ 

Number of shares of Common Stock to be Issued: 
_____________________________________ 

Applicable Conversion Price:_____________________________________________________ 

Number of shares of Preferred Stock subsequent to Conversion: 
_________________________ 
 Address for Delivery: ______________________ 

or 
 DWAC Instructions: 
 Broker no:
                 

Account no:
                     
  

			
	 [HOLDER]

		
	By:	 	  

	      Name:

	      Title:




  
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