**Intermediate      Supply Agreement**

**RECITALS**

**TERMS**

| **1.** | **Purpose** |
|--------|-------------|

|  | a) | "Products"                are defined as the intermediates manufactured by fractionation of                plasma                and specified by Appendix                1. |
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|  | b) | "Plasma"                ("Plasma for Fractionation") is the liquid part of human blood donated                by                donors and which satisfies the definition of “Source Plasma”, as defined                by the United States Food and Drug Administration (“FDA”) in 21 C.F.R.                640.60. |
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|  | c) | BIOTEST                acknowledges that the Products are manufactured on LEV’s behalf by Sanquin                Blood Supply Foundation (“Sanquin”), located at Plesmanlaan                125, 1066 CX Amsterdam,                Netherlands. Manufacturing site is the facility of CAF/DCF, Avenue                de                Tyraslaan 109, 1120 Brussels,                Belgium. |
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| **2.** | **Sale                of Products** |
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|  | 2.1 | Agreement                to purchase and sell.                During the Term of, and in accordance with the terms and conditions,                of                this Agreement, Seller shall sell and Purchaser shall purchase all                of the                Products (as defined above) produced by Sanquin on behalf of Seller                from                the Plasma provided by Seller to Sanquin that Seller does not require                for                use in clinical trials of its product candidates, as it may determine                in                its reasonable discretion. Seller represents to Purchaser that the                volume                of Plasma to be processed on its behalf by Sanquin for the calendar                year                ending December 31, 2008 shall be approximately ***                * ***                liters. Thereafter, and for all subsequent 12 month periods during                the                term of this Agreement, Seller shall notify Purchaser prior to November                30                of the prior year of the volume of Plasma that is anticipated to                be                processed for Seller by Sanquin for the next succeeding twelve month                period. Notwithstanding the foregoing, however, Purchaser agrees                and                acknowledges that the specific quantities of Products which it hereby                agrees to purchase shall fluctuate throughout the Term, based on                Seller’s                requirements, and that Seller makes no commitment or guarantee to                sell any                set quantity of Products during the Term. Seller will estimate, on                a                periodic basis during the Term, the estimated volume and schedule                for                shipments of Products. |
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|  | 2.2 | Purchaser’s                Right of First Refusal for Plasma.  |
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|  | 2.3 | Seller’s                Right of First Refusal for Fraction V Paste.  |
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***      * ***

|  | 2.4 | Invoices.                From time to time during the Term, Seller shall deliver to Purchaser                an                invoice order reflecting the aggregate volume of Products to be purchased                hereunder (an “Invoice”). Seller shall be entitled to deliver Invoices to                Purchaser at such time as the transfer of title of the Products covered                by                each such Invoice occurs, as specified in Section 4(c) of this Agreement.                Each Invoice shall specify the quantity of Products purchased and                the                corresponding delivery dates. |
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| **3.** | **Quality** |
|--------|-------------|

| **4.** | **Delivery**. |
|--------|---------------|

|  | a) | From                time to time during the Term, Seller shall deliver the Plasma from                which                Sanquin shall manufacture the Products to Sanquin at such locations                as                shall be determined by LEV and Sanquin. On behalf of Sanquin the                Products                are produced at the facility of CAF/DCF. |
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|  | b) | From                time to time during the Term, Seller shall generate and deliver to                Purchaser an invoice for the volume of Products sold. Each such invoice                shall specify the quantity of Products sold, the aggregate price                for such                Products and the date on which the Products shall be transferred                to                Purchaser. Seller agrees to consult with Purchaser regarding the                quantity,                frequency and timing of Products tendered for delivery; however Purchaser                agrees and acknowledges that the exact quantity, frequency and delivery                time for Product delivery is subject to the production output of                Sanquin. |
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|   | c) | The                transfer of title, use and risk of loss for the Products shall occur                at                the designated shipment or transfer location of Seller. Transfer                of title,                use and risk of loss shall occur periodically during the Term at                each time                that Seller confirms to Purchaser that Sanquin is authorized to release                a                batch of *** and/or *** (as such terms are defined in Appendix 1)                from its                quality assurance procedures for shipment. Accordingly, any damages                sustained beyond that point, will be the responsibility of Purchaser.                In                the event Purchaser is notified by Sanquin that a batch of Product                (whether it is *** or ***) has been released from quality assurance,                it                shall, prior to taking delivery of such batch of Product, notify                Seller of                such occurrence. In no event may Purchaser accept delivery of and                title to                any Products until the release of such Product batch is confirmed                by                Seller. Purchaser agrees to bear all costs of shipments, freight,                insurance and all governmental taxes and duties incurred during shipping                of the Products sold hereunder from the Seller shipping point to                Purchaser’s designated receiving terminal. |
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|  | d) | Products                shall be packed by or on behalf of Seller in such a manner as to                mitigate                damage to the Products or containers during shipping and shall be                tendered                to Purchaser at Seller’s designated shipping point. |
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| **5.** | **Terms                of Payment** |
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| **6.** | **Receipt,                Tests and Complaints** |
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|   | a) | The                receipt, tests to be performed on Plasma, including NAT testing for                HIV,                HBV, HCV, HAV, and Parvo B19, respective documentation, and possible                complaints, as well as handling of look-backs and Post Donation                Information are the responsibility of Sanquin pursuant to the Lev-Sanquin                Agreement. |
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|   | b) | The                location for the receipt of Products purchased hereunder by Purchase                is:                BIOTEST at its manufacturing site at Dreieich, Germany for purchases                of                *** and CAF/DCF for purchases of *** at its manufacturing site at                Brussels, Belgium for further manufacturing. Purchaser may, upon                prior                written notice to Seller, select other receiving locations for                Products. |
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|  | c) | Purchaser                reserves the right for up to 90 days from date of delivery to inspect                Products for deficiencies. In the event a shipment of Products does                not                comply with the requirements of this Agreement because of any failure                of                the Plasma to comply with the warranty provided in Section 7.1(i)                below,                Purchaser may reject all or party of such shipment by promptly notifying                Seller in writing of such alleged defect in reasonably sufficient                detail.                The nonconforming shipment or portion thereof shall be held for Seller’s                disposition, or shall be returned to Seller, in each case at Seller’s                expense, as directed by Seller. Purchaser shall not be obligated                to buy or                pay for any shipment which does not comply with the specifications                or is                otherwise not as warranted. Purchaser shall receive a full credit                for any                rejected shipment, which shall include Purchaser’s shipping costs. In the                event the Products are not accepted for any reason other than the                failure                of the Plasma to satisfy the warranty of Seller in Section 7.1(i),                Purchaser shall not have any recourse against Seller, shall be liable                to                the Seller for the prompt payment of the purchase price of such Products                and shall be limited to pursuing any remedies it may have pursuant                to the                Quality Agreement or such other agreement it may have with                Sanquin. |
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| **7.** | **Representations                and Warranties** |
|--------|---------------------------------------------------|

*.      *

*.      *

|   | (a) | Such                Party is a corporation duly organized, validly existing, and in good                standing under the laws of jurisdiction in which it is                incorporated. |
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|   | (b) | Such                Party has the corporate and legal power and authority to enter into                this                Agreement and to perform its obligations hereunder, and such Party                has                undertaken all necessary corporate action to authorize the execution                and                delivery of this Agreement and to perform its obligations hereunder.                This                Agreement, once executed and delivered by the Parties shall constitute                a                valid and binding obligation enforceable against each Party in accordance                with the terms hereof. |
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|   | (c) | Such                Party has not made and, during the term of this Agreement, will not                make                any commitments to any other person or entity that is or may be                inconsistent or in conflict with any rights granted under this                Agreement. |
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*.*

| **8.** | **Limitation                of Liability and Indemnification** |
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*.*

*a.      Purchaser’s Obligation*

*b.      Seller’s Obligation*

*c.      Condition to Indemnity*

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| **9.** | **Extraordinary** **Risks** |
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| **10.** | **Confidentiality** |
|---------|---------------------|

| **11.** | **Term                and Termination of                Agreement** |
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|  | a) | Term                of Agreement.                The term of this Agreement shall commence on the Effective Date and                shall                continue in full force and effect until December 31, 2012 (the “Term”)                unless terminated earlier in accordance with this Agreement. Articles                6,                7, 8, 9, 10, 11, 12, and 13 shall survive termination or expiration                of                this Agreement and remain in full force and effect to the degree                necessary                to permit their complete fulfillment or                discharge. |
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|  | b) | Renewal.                This Agreement shall be executed by mutual signatures of the Parties.                This                Agreement will be automatically extended for an additional two years                unless it is cancelled by either of the parties in writing on or                before                December 31, 2011. |
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|  | c) | Termination                for Cause.                Either Party shall have the right to immediately terminate this Agreement                in the event the other Party fails to perform any of its material                obligations under this Agreement and such failure to perform is not                cured                within 30 days of written notice of such failure; provided, however                correction of a breach by Purchaser for non-payment must be made                within 30                business days. Non payment shall not be considered a breach in the                event                of (1) a payment dispute, in good faith, in accordance with terms                and                conditions of Appendix 2 and/or (2) a breach by Seller of its warranty                set                forth in Section 7.1(i). The right of any Party to terminate this                Agreement pursuant to this section shall not be affected in any way                by its                waiver or failure to take action with respect to any prior default.                The                Party not in default shall be entitled to terminate this Agreement                without                prejudice to any other rights conferred on it by this Agreement or                under                law or equity. A termination shall not relieve a Party from any                obligations that survive termination or expiration of this Agreement. |
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|  | d) | Other                Termination Provisions.                Either Party may immediately terminate this Agreement if the other                Party:                (i) admits in writing that it is unable to pay its debts as they                become                due; (ii) starts a proceeding, or indicates its acquiescence to a                proceeding started by another, relating to it under any bankruptcy,                reorganization, rearrangement, insolvency, readjustment or debt,                dissolution, liquidation or similar law; (iii) makes an assignment                for the                benefit of creditors; (iv) consents to the appointment of a receiver,                trustee or liquidator for a substantial part of its property; (v)                files,                or has filed against it, a petition in bankruptcy, reorganization,                rearrangement or insolvency which, if filed against it, is not dissolved                or dismissed within ninety (90) days after filing; or (vi) had entered                against it an order by a court of competent jurisdiction appointing                a                receiver, trustee or liquidator for it or a substantial part of its                property, or approving its dissolution or termination, and if not                consented to or acquiesced in by such Party, such order in not vacated                or                set aside or stayed within ninety (90)                days. |
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| **12.** | **Remedies                for Non-Performance** |
|---------|-------------------------------------------------|

|  | a) | In                the event Purchaser fails to timely pay any invoice for Products,                except                in the event of (i) a good faith payment dispute in accordance with                Appendix 2 and/or (ii) a breach by Seller of its warranty set forth                in                Section 7.1(i),upon the expiration of the twenty (20) day cure period,                Seller will have no further obligation to sell Products to Purchaser,                and                Purchaser will be liable to purchase from Seller all amounts of Products                deliverable hereunder during the remaining Term of this Agreement,                which                amount shall be based on a per annum Product yield equal to either                ***                * ***                liters or if greater, the volume of Products actually purchased by                Purchaser during the *** period immediately prior to the termination                date. |
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|  | b) | In                the event the Seller or Purchaser is in breach of any provision,                other                than non-payment by Purchaser and such breach remains uncured following                thirty (30) days’ written notice to the breaching party, the non-breaching                party shall have the right to immediately terminate this agreement                upon                written notice to the breaching party. In addition, Purchaser or                the                Seller shall have the right to exercise any and all other rights                and                remedies available to it, whether arising at law or in equity or                arising                under this agreement. |
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|  | c) | Intentionally                omitted. |
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|  | d) | The                rights and remedies available to Purchaser or the Seller under this                agreement or any other agreement among the parties are cumulative                and the                exercise of any right or remedy shall not preclude or dismiss Purchaser's                or the Seller's right to pursue any other or additional right or                remedy,                including, without limitation, any claim for damages. The failure                to                exercise any right or remedy in the event of any breach or default                shall                not constitute a waiver or adversely affect Purchaser's or the Seller's                right to exercise any right or remedy in the future for the same                or any                other breach or default in the                future. |
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|  | e) | Purchase                of Closing Inventory.** **At                the termination or expiration of this agreement, the Seller shall                sell,                and Purchaser is obligated to buy from the Seller, the Seller’s inventory                of Products collected for Purchaser prior to the termination or expiration                of this Agreement, provided such Products meet Seller’s warranties set                forth in this Agreement, and such Products shall be purchased at                the same                price that Purchaser was paying Seller prior to the termination or                expiration of the Agreement. The volumes of Product processed for                Seller                during the *** period prior to such termination or expiration date                and the volume of Product deliverable upon the completion of processing                of                unprocessed Plasma collected by Seller prior to such termination                or                expiration date will constitute the Closing                Inventory. |
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| **13.** | **Force                Majeure** |
|---------|----------------------------------|

|  | a) | The                performance of Purchaser and Seller hereunder is subject to all                contingencies except those beyond the direct control of the non-performing                Party, and neither Party shall be considered in default in the performance                of its obligations hereunder (other than the obligation to make payment                of                money hereunder) or be liable in damages or otherwise for any failure                or                delay in performance which is due to: strikes, lockouts, concerted                acts of                workers or other industrial disturbances, fires, explosions, floods,                or                other natural catastrophes, civil disturbances, riots, or armed conflict,                whether declared or undeclared, curtailment, shortage, or allocation,                of                normal sources of supply, including without limitation the manufacturing                of Products by Sanquin, labor, materials, transportation, energy,                or                utilities, accidents, acts of God, sufferance of or voluntary compliance                with acts of government or governmental regulation, whether or not                valid,                embargoes, quotas, seizures, restrictions, or actions of or rejections                by                inspectors or retentions of goods by customs authorities or any other                similar, or dissimilar cause which is beyond the reasonable control                of the                non-performing party (“Force Majeure”). The Parties shall continue to                perform this Agreement promptly following the cessation of the Force                Majeure event. |
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|  | b) | In                the event the establishment or product licenses under which the Plasma                or                Products are processed by Seller’s Plasma suppliers or Sanquin shall be                revoked by the respective Government regulatory Authorities, this                Agreement shall automatically terminate, without penalty to any Party                and                neither Party shall be further liable to the                other. |
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|  | c) | In                the event licenses of establishments, and/or Products, and/or Plasma,                or                either of them, under which the Products or Plasma are processed                are                suspended by the respective Government regulatory Authorities, the                performance by both Parties under this Agreement shall be similarly                suspended during the applicable appeal periods for Purchaser or Seller                to                contest such revocation or suspension. Any appeal of such suspension                or                revocation shall be at the option of the relevant Party. To the extent                permitted by the respective Government regulatory Authorities, Purchaser                may continue to utilize the Products from stocks in its possession                or in                transit. |
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| **14.** | **General                Provisions** |
|---------|---------------------------------------|

|  | a) | All                costs, taxes, fees, and charges being accrued from this Agreement                to a                Party shall be covered by this Party itself. |
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|  | b) | This                Agreement constitute the entire Agreement between the parties relating                to                the subject matter herein, and all prior proposals, discussions and                writings by and between the parties and relating to the subject matter                herein are superseded hereby, except for the Confidentiality Agreement                previously entered into. None of the terms of this Agreement shall                be                deemed to be waived or amended by either Party unless such waiver                or                amendment is written and signed by the Parties, and recites specifically                that it is a waiver of, or amendment to, the terms of this Agreement. |
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|  | d) | In                the event any portion of this Agreement is declared void or invalid                by a                court or tribunal of competent jurisdiction, such provision shall                be                modified or severed from this Agreement, and the remaining provisions                shall remain in effect, unless the effect of such severance would                be to                alter substantially this Agreement or the obligations of the parties,                in                which case this Agreement may be immediately terminated. |
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|  | e) | The                relationship between Purchaser and Seller is, and during the term                hereof                shall be, that of buyer and seller. Seller is in no way the partner,                legal                representative or agent of Purchaser for any purpose whatsoever and                has no                right or authority to incur, assume, or create, in writing or otherwise,                any warranty, liability or obligation of any kind, expressed or implied,                in the name of, or on behalf of                Purchaser. |
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|  | f) | All                notices or other communications required or permitted to be given                or made                under this Agreement may be effected by personal delivery in writing,                which shall then be deemed communicated the same day as the personal                delivery thereof, or by registered or certified mail, postage prepaid,                return receipt requested, which shall then be deemed communicated                five (5)                days from the mailing thereof. Notices shall be addressed to the                parties                at the address given at the top of this Agreement or at such address                as                the respective parties may hereafter designate to the other in                writing. |
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|  | g) | This                Agreement shall be governed by and construed in accordance with the                substantive and procedural laws of the State of New York without                giving                effect to the principles of conflicts of law as applied in the State                of                New York. |
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|  | h) | This                Agreement shall become effective only upon execution and acceptance                by                Purchaser and Seller. |
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|  | i) | This                Agreement may be executed simultaneously or in one or more counterparts,                each of which shall be deemed an original, but all of which together                shall                constitute one and the same instrument. |
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|  | j) | The                subject headings of the paragraphs and subparagraphs of this Agreement                are                included for the purposes of convenience only, and shall not affect                the                construction or interpretation of any of its                provisions. |
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|  | k) | Except                as otherwise set forth herein, this Agreement shall not be assignable                by                either Party hereto, either voluntarily or by operation of law or                otherwise, without the prior written consent of the other Party.                Any                assignment without prior written consent is void. Notwithstanding                the                foregoing, Seller or Purchaser may assign or transfer this Agreement                (i)                to a successor entity, solely in the event of an acquisition,                consolidation, asset sale or merger by or with another entity, upon                ten                (10) days prior written notice to Seller; or (ii) to an Affiliate                of the                Seller or Purchaser. |
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|  | l) | This                Agreement shall be binding upon and inure to the benefit of the parties                hereto, their successors and assigns. |
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|  | m) | Nothing                in this Agreement, whether expressed or implied, is intended to confer                any                right or remedies under or by reason of this Agreement of any persons                other than the parties to it and their respective successors and                assigns,                nor is this Agreement intended to relieve or discharge the obligation                or                liability of any third persons to any party to this Agreement, nor                shall                any provision give any third persons any right of subrogation or                action                over or against any party to this Agreement. |
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|  | n) | Each                Party represents and warrants that it has the right, legal capacity                and                authority to enter into this Agreement and that the execution of                this                Agreement has been duly authorized. |
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| **Biotest                AG,**       |   | **Lev                Pharmaceuticals, Inc.**                |
|--------------------------------------|--------|-------------------------------------------------------------|
| Dreireich,                Germany    |   | New                York, NY USA                             |
|                                 |   |                                                        |
| /s/                Dr. M. Reinecke   |   | /s/                Judson A. Cooper                         |
| ppa.                Dr. M. Reinecke  |   | By:                Judson A. Cooper                         |
|                                 |   | Title:                Chairman and Executive Vice President |
|                                 |   |                                                        |
| **Biotest                AG,**       |   |                                                        |
| Dreieich,                Germany     |   |                                                        |
|                                 |   |                                                        |
| /s/                Dr. G. Floß  |   |                                                        |
| ppa.                Dr. G. Floß |   |                                                        |

| **List                of Appendices**                                                  |
|----------------------------------------------------------------------------------------|
| Appendix 1:     Specification                of Products |
| Appendix 2:     Price                and Payment Terms   |

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**Appendix      1 of the Intermediate Supply Agreement**

**Specification      of Products**

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**Appendix      2 of the Intermediate Supply Agreement**

**Price      and Payment Terms**

**Price**

***      * ***

***      * ***

**Payment**

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