WARRANT TO PURCHASE COMMON STOCK

Exhibit 10.30

THIS WARRANT AND THE SHARES ISSUABLE HEREUNDER HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “ACT”), OR THE SECURITIES LAWS OF ANY STATE AND, EXCEPT AND PURSUANT TO THE PROVISIONS OF ARTICLE 4 BELOW, MAY NOT BE OFFERED, SOLD OR OTHERWISE TRANSFERRED, PLEDGED OR HYPOTHECATED UNLESS AND UNTIL REGISTERED UNDER SAID ACT AND APPLICABLE STATE SECURITIES LAW OR, IN THE OPINION OF LEGAL COUNSEL IN FORM AND SUBSTANCE SATISFACTORY TO THE ISSUER OF THESE SECURITIES, SUCH OFFER, SALE OR TRANSFER, PLEDGE OR HYPOTHECATION IS EXEMPT FROM REGISTRATION.

WARRANT TO PURCHASE COMMON STOCK

Company: Pacira Pharmaceuticals, Inc., a Delaware corporation (the “Company”)

Shares:                         

Class of Stock: Common Stock, $0.001 par value per share

Exercise Price: $1.25 per share (the “Exercise Price”)

Issue Date: December         , 2010

Term: See Section 4.1

THIS WARRANT CERTIFIES THAT, for value received as consideration pursuant to that certain Note and Warrant Purchase Agreement, dated December 29, 2010, by and among the Company and the Investors named therein (the “Purchase Agreement”), and for other good and valuable consideration the sufficiency of which is hereby acknowledged,                                  (“Holder”) is entitled to purchase up to                         (            ) fully paid and nonassessable shares of the Company’s common stock, $0.001 par value per share (the “Shares”), at the Exercise Price, all as set forth herein, subject to the provisions and upon the terms and conditions set forth in this Warrant.

ARTICLE 1. EXERCISE.

1.1 Method of Exercise. Holder may exercise this Warrant by delivering a duly executed Notice of Exercise in substantially the form attached as Appendix 1 hereto to the principal office of the Company. Unless Holder is exercising the net exercise right set forth in Section 1.2, Holder shall also deliver to the Company a check or wire transfer (to an account designated by the Company), for the aggregate Exercise Price for the Shares being purchased.

1.2 Net Exercise. In lieu of exercising this Warrant as specified in Section 1.1 for cash, the Holder may elect to receive shares equal to the value of this Warrant (or the portion thereof being exercised) by surrendering this Warrant at the principal office of the Company and the Company shall issue to such Holder a number of Shares computed using the following formula:

Where

X =     The number of Shares to be issued to the Holder.

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1.3 Fair Market Value. If the common stock of the Company, $0.001 par value per share (the “Common Stock”) is traded in a public market, the fair market value of each Share shall be the closing price of a share of Common Stock reported for the business day immediately before Holder delivers its Notice of Exercise to the Company (or in the instance where the Warrant is exercised immediately prior to the effectiveness of the Company’s initial public offering, the “price to public” per share price specified in the final prospectus relating to such offering). If the Common Stock is not traded in a public market, then the Board of Directors of the Company shall determine fair market value in its reasonable good faith judgment.

1.4 Delivery of Certificate and New Warrant. Promptly after Holder exercises or net exercises this Warrant and, if applicable, the Company receives payment of the aggregate Exercise Price, the Company shall deliver to Holder certificates for the Shares acquired and, if this Warrant has not been fully exercised or net exercised and has not expired, a new Warrant representing the Shares not so acquired.

1.5 Replacement of Warrants. On receipt of evidence reasonably satisfactory to the Company of the loss, theft, destruction or mutilation of this Warrant and, in the case of loss, theft or destruction, on delivery of an indemnity agreement reasonably satisfactory in form and amount to the Company or, in the case of mutilation, on surrender and cancellation of this Warrant, the Company shall execute and deliver, in lieu of this Warrant, a new warrant of like tenor.

ARTICLE 2. ADJUSTMENTS TO THE SHARES.

2.1 Stock Dividends, Splits, Combinations, Etc. If the Company declares or pays a dividend on the Shares payable in Common Stock, or other securities, then upon exercise of this Warrant, for each Share acquired, Holder shall receive, without cost to Holder, the total number and kind of securities to which Holder would have been entitled had Holder owned the Shares of record as of the date the dividend occurred. If the Company subdivides the Shares by reclassification or otherwise into a greater number of shares or takes any other action which increases the amount of stock into which the Shares are convertible, the number of shares purchasable hereunder shall be proportionately increased and the Exercise Price shall be proportionately decreased. If the outstanding shares of the Company are combined or consolidated, by reclassification or otherwise, into a lesser number of shares, the Exercise Price shall be proportionately increased and the number of Shares shall be proportionately decreased.

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2.2 Reclassification, Exchange or Substitution, Etc. Upon any reclassification, exchange, substitution, or other event that results in a change of the number and/or class of the securities issuable upon exercise or net exercise of this Warrant, Holder shall be entitled to receive, upon exercise or net exercise of this Warrant, the number and kind of securities and property that Holder would have received for the Shares if this Warrant had been exercised immediately before such reclassification, exchange, substitution, or other event. The Company or its successor shall promptly issue to Holder an amendment to this Warrant setting forth the number and kind of such new securities or other property issuable upon exercise or net exercise of this Warrant as a result of such reclassification, exchange, substitution or other event that results in a change of the number and/or class of securities issuable upon exercise or net exercise of this Warrant.

2.3 Merger or Consolidation. Upon any capital reorganization of the Company’s capital stock (other than a subdivision, combination, reclassification or exchange of shares provided for elsewhere in this Section 2) or a merger or consolidation of the Company with or into another corporation, then as a part of such reorganization, merger or consolidation, provision shall be made so that the Holder shall thereafter be entitled to receive upon the exercise or net exercise of this Warrant, the number and kind of securities and property of the Company, or of the successor corporation resulting from such reorganization, merger or consolidation, to which that Holder would have received for the Shares if this Warrant had been exercised immediately before such reorganization, merger or consolidation.

2.4 Fractional Shares. No fractional Shares shall be issuable upon exercise or net exercise of this Warrant and the number of Shares to be issued shall be rounded down to the nearest whole Share. If a fractional share interest arises upon any exercise or net exercise of the Warrant, the Company shall eliminate such fractional share interest by paying Holder an amount in cash computed by multiplying the fractional interest by the fair market value of a full Share (as determined pursuant to Section 1.3).

2.5 Certificate as to Adjustments. Upon each adjustment of the Exercise Price, the Company shall promptly notify Holder in writing, and, at the Company’s expense, promptly compute such adjustment, and furnish Holder with a certificate of its Chief Financial Officer or other officer setting forth such adjustment and the facts upon which such adjustment is based. The Company shall furnish Holder a certificate setting forth the Exercise Price in effect upon the date thereof and the series of adjustments leading to such Exercise Price.

ARTICLE 3. COVENANTS OF THE COMPANY.

3.1 Notice of Certain Events. If the Company proposes at any time (a) to declare any dividend or distribution upon any of its stock, whether in cash, property, stock, or other securities and whether or not a regular cash dividend; (b) to effect any reclassification or recapitalization of any of its stock; or (c) to merge or consolidate with or into any other corporation, or sell, lease, license, or convey all or substantially all of its assets, or to liquidate, dissolve or wind up, then, in connection with each such event, the Company shall give Holder: (1) at least three (3) days prior written notice of the date on which a record will be taken for such dividend, distribution, or subscription rights (and specifying the date on which the holders of Common Stock will be entitled thereto) or for determining rights to vote, if any, in respect of the

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matters referred to in (a) above; and (2) in the case of the matters referred to in (b) and (c) above at least three (3) days prior written notice of the date when the same will take place (and specifying the date on which the holders of Common Stock will be entitled to exchange their Common Stock for securities or other property deliverable upon the occurrence of such event).

3.2 No Stockholder Rights or Liabilities. Except as provided in this Warrant, the Holder will not have any rights as a stockholder of the Company until the exercise of this Warrant. Absent an affirmative action by the Holder to purchase the Shares, the Holder shall not have any liability as a stockholder of the Company.

3.3 Closing of Books. The Company will at no time close its transfer books against the transfer of this Warrant or of any Shares issued or issuable upon the exercise of this Warrant in any manner which interferes with the timely exercise of this Warrant.

ARTICLE 4. MISCELLANEOUS.

4.1 Term. This Warrant is exercisable in whole or in part at any time and from time to time on or before the earlier of 5:00 pm Pacific Time on the seventh (7^th) anniversary of the Issue Date.

4.2 Legends. This Warrant and the Shares (and the securities issuable, directly or indirectly, upon conversion of the Shares, if any) shall be imprinted with a legend in substantially the following form:

THIS WARRANT AND THE SHARES ISSUABLE HEREUNDER HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “ACT”), OR THE SECURITIES LAWS OF ANY STATE AND MAY NOT BE OFFERED, SOLD OR OTHERWISE TRANSFERRED, PLEDGED OR HYPOTHECATED UNLESS AND UNTIL REGISTERED UNDER SAID ACT AND APPLICABLE STATE SECURITIES LAW OR, IN THE OPINION OF LEGAL COUNSEL IN FORM AND SUBSTANCE SATISFACTORY TO THE ISSUER OF THESE SECURITIES, SUCH OFFER, SALE OR TRANSFER, PLEDGE OR HYPOTHECATION IS EXEMPT FROM REGISTRATION.

4.3 “Market Stand off” Agreement. Holder hereby agrees that it will not, without the prior written consent of the Company, during the period commencing on the date of the final prospectus relating to the initial public offering of the capital stock of the Company and ending on the date specified by the Company (such period not to exceed one hundred eighty (180) days) (i) lend; offer; pledge; sell; contract to sell; sell any option or contract to purchase; purchase any option or contract to sell; grant any option, right, or warrant to purchase; or otherwise transfer or dispose of, directly or indirectly, any shares of common stock or any securities convertible into or exercisable or exchangeable, directly or indirectly, for common stock held immediately before the effective date of the registration statement for such offering or (ii) enter into any swap or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of the common stock, whether any such transaction described in clause (i) or (ii) above is to be settled by delivery of common stock or other securities, in cash, or otherwise.

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4.4 Additional Stockholder Agreements. Upon the exercise or net exercise of this Warrant, the Holder agrees that the Shares shall be subject to the terms and conditions of (i) that certain Lock-Up Agreement executed in favor of Barclays Capital Inc. and Piper Jaffray & Co. and (ii) the Transaction Agreements (as defined in the Series A Preferred Stock Purchase Agreement, dated March 23, 2007, by and among the Company and the other signatories thereto).

4.5 Transfers. This Warrant and the Shares issuable upon exercise of this Warrant (and the securities issuable, directly or indirectly, upon conversion of the Shares, if any) may not be transferred or assigned in whole or in part without compliance with applicable federal and state securities laws by the transferor and the transferee (including, without limitation, the delivery of investment representation letters and legal opinions reasonably satisfactory to the Company, as reasonably requested by the Company). Subject to the foregoing, this Warrant and the Shares issuable upon exercise of this Warrant shall be transferable only in accordance with Transaction Agreements. After compliance with all restrictions on transfer set forth in this Section 4.5, and within a reasonable time after the Company’s receipt of an executed Assignment Form in the form attached hereto, the transfer shall be recorded on the books of the Company upon the surrender of this Warrant, properly endorsed, to the Company at its principal offices, and the payment to the Company of all transfer taxes and other governmental charges imposed on such transfer. In the event of a partial transfer, the Company shall issue to the new holders one or more appropriate new warrants.

4.6 Notices. All notices and other communications from the Company to the Holder, or vice versa, shall be deemed delivered and effective when given personally or mailed by first-class registered or certified mail, postage prepaid, at such address as may have been furnished to the Company or the Holder, as the case may (or on the first business day after transmission by facsimile) be, in writing by the Company or such Holder from time to time. Effective upon receipt of the fully executed Warrant, all notices to the Holder shall be addressed as set forth on the signature page hereto until the Company receives notice of a change of address in connection with a transfer or otherwise. Notice to the Company shall be addressed as set forth on the signature page hereto until the Holder receives notice of a change in address.

4.7 Waiver. This Warrant and any term hereof may be changed, waived, discharged or terminated only by an instrument in writing signed by the party against which enforcement of such change, waiver, discharge or termination is sought.

4.8 Counterparts. This Warrant may be executed in counterparts, all of which together shall constitute one and the same agreement.

4.9 Governing Law. This Warrant shall be governed by and construed in accordance with the laws of the State of California, without giving effect to its principles regarding conflicts of law.

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SIGNATURE PAGE TO COMMON STOCK WARRANT

APPENDIX 1

NOTICE OF EXERCISE

[or]

[Strike above paragraph that does not apply.]

ASSIGNMENT FORM

(To assign the foregoing Warrant, execute this form and supply required information. Do not use this form to purchase Shares.)

FOR VALUE RECEIVED, the foregoing Warrant and all rights evidenced thereby are hereby assigned to

NOTE: The signature to this Assignment Form must correspond with the name as it appears on the face of the Warrant. Officers of corporations and those acting in a fiduciary or other representative capacity should provide proper evidence of authority to assign the foregoing Warrant.