|   | **Exhibit 31.1** |
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**Section 302 CEO Certification**

 

I, Jack E. Stover, certify that:

 

| 1. | I have reviewed this quarterly report on Form 10-Q of Antares Pharma, Inc.; |
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| 2. | Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state amaterial fact necessary to make the statements made, in light of the circumstances under which such statementswere made, not misleading with respect                    to the period covered by this report; and |
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| 3. | Based on my knowledge, the financial statements, and other financial information included in this report, fairlypresent in all material respects the financial condition, results of operations and cash flows of the registrant asof, and for, the periods                    presented in this report; |
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| 4. | The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controlsand procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financialreporting (as defined in Exchange Act Rules 13a-15(f) and 15(d)-15(f)) for the                        registrant and have: |
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|   | a) | designed such disclosure controls and procedures, or caused such disclosure controls and proceduresto be designed under our supervision, to ensure that material information relating to the registrant,including its consolidated subsidiaries, is made known to us by others within those entities, particularlyduring the period in which this report is being prepared; |
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|   | b) | designed such internal control over financial reporting, or caused such internal control over financialreporting to be designed under our supervision, to provide reasonable assurance regarding the reliabilityof financial reporting and the preparation of financial statements for external purposes in                        accordancewith generally accepted accounting principles; |
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|   | c) | evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in thisreport our conclusions about the effectiveness of the disclosure controls and procedures, as of the endof the period covered by this report based on such evaluation; and |
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|   | d) | disclosed in this report any change in the registrant’s internal control over financial reporting thatoccurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonablylikely to materially affect, the registrant’s internal control over financial                        reporting; and |
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| 5. | The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internalcontrol over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board ofdirectors (or persons performing the equivalent functions): |
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|   | a) | all significant deficiencies and material weaknesses in the design or operation of internal control overfinancial reporting which are reasonably likely to adversely affect the registrant’s ability to record,process, summarize and report financial information; and |
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|   | b) | any fraud, whether or not material, that involves management or other employees who have a

significant role in the registrant’s internal control over financial reporting. |
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| Date: | May 15, 2008 |
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| /s/ Jack E. Stover                                      |
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Jack E. Stover

President and Chief Executive Officer