| 1. | Contribution of      Cash. On the Effective Date, Quigley shall contribute the      Contributed Cash to the Company as a capital  contribution. |
|----|-------------------------------------------------------------------------------------------------------------------------------------------------|

| 2. | Assignment and      Assumption; Contribution ofLicense. |
|----|---------------------------------------------------------|

|   | (a) | Quigley      hereby transfers, conveys and assigns to the Company all of its rights,      title and interest in, to and under the License Agreement (collectively,      the “Assigned      Rights”). The Company hereby assumes, and undertakes to pay,      discharge and perform when due, all of Quigley’s liabilities and      obligations under and arising pursuant to the License Agreement      (collectively, the Assumed      Liabilities”). “Assignment and      Assumption” means the transfer, conveyance and assignment of the      Assigned Rights pursuant to this Section 2(a)      and the assumption of, and the undertaking to pay, discharge and perform      when due, the Assigned Liabilities pursuant to this Section 2(a). |
|--------|-----|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (b) | The      Assignment and Assumption constitutes a capital contribution to the      Company by Quigley. |
|--------|-----|-------------------------------------------------------------------------------------------------------|

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|   | (c) | The      Company hereby replaces Quigley as the Licensee (as defined in the License      Agreement). For the convenience of the Parties, PSI Parent and the Company      shall enter into a license agreement in the form attached as Exhibit C,      which will amend and restate the License Agreement in its entirety and      which will reflect that the Company is the Licensee (as defined      therein). |
|--------|-----|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (d) | Notwithstanding      anything in the License Agreement to the contrary, PSI Parent      (i) acknowledges and hereby consents to the Assignment and      Assumption, (ii) acknowledges and hereby consents to the Company      replacing Quigley as the Licensee pursuant hereto, (iii) is not      entitled to, and shall not seek to, enforce any of its rights under the      License Agreement against Quigley, and (iv) hereby irrevocably and      unconditionally releases Quigley from any and all Assumed      Liabilities. |
|--------|-----|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 3. | Miscellaneous. |
|----|----------------|

|   | (a) | Amendments. Any      provision of this Agreement may be amended if, and only if, such amendment      is in writing and is signed by eachParty. |
|--------|-----|------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (b) | Incorporation of      Provisions in LLC Agreement. The following provisions of the LLC      Agreement are hereby incorporated by reference as if set forth herein in      full, mutatis      mutandis: Sections 1.2 (Construction);       20.1 (Notices); 20.5 (Waivers); 20.6 (Successors and      Assigns); 20.7 (Governing Law); 20.8 (Dispute Resolution and      Arbitration); 20.9 (Counterparts); 20.11 (No Third-Party      Beneficiaries); 20.13 (Captions); 20.14 (Severability);      20.15 (Interpretation); 20.16 (Consent to Jurisdiction and      Venue); 20.17 (Specific Performance); 20.18 (Further      Assurances); 20.19 (Signed Writings); and 20.21 (Access to      Counsel). |
|--------|-----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

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| THE      QUIGLEY CORPORATION   |
|--------------------------------|
|                           |   |
| By:                       | /s/ Ted Karkus |
|                           | Name:  Ted      Karkus |
|                           | Title:  Chief      Executive Officer |
|                           |   |
| PHOSPHAGENICS      INC.        |
|                           |   |
| By:                       | /s/ Fred Banti |
|                           | Name:  Fred      Banti |
|                           | Title:  President |
|                           |   |
| PHOSPHAGENICS      LTD.        |
|                           |   |
| By:                       | /s/ Fred Banti |
|                           | Name:  Fred      Banti |
|                           | Title:      Senior Vice President and Chief Business Officer |
|                           |   |
| PHUSION      LABORATORIES, LLC |
|                           |   |
| By:                       | /s/ Ted Karkus |
|                           | Name:  Ted      Karkus |
|                           | Title:  Co-Chief      Executive Officer |

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