**EXHIBIT 31.1****CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER AND PRINCIPAL FINANCIAL OFFICER**I, Frank E. Thomas, in my capacity as principal executive officer and principal financial officerof Critical Therapeutics, Inc., certify that:1. I have reviewed this Annual Report on Form 10-K of Critical Therapeutics, Inc.;2. Based on my knowledge, this report does not contain any untrue statement of a material factor omit to state a material fact necessary to make the statements made, in light of thecircumstances under which such statements were made, not misleading with respect to the periodcovered by this report;3. Based on my knowledge, the financial statements, and other financial information included inthis report, fairly present in all material respects the financial condition, results ofoperations and cash flows of the registrant as of, and for, the periods presented in thisreport;4. I am responsible for establishing and maintaining disclosure controls and procedures (asdefined 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 15d-15(f)) for the registrant andhave: a) Designed such disclosure controls and procedures, or caused such disclosurecontrols and procedures to be designed under my supervision, to ensure that materialinformation relating to the registrant, including its consolidated subsidiaries, ismade known to me by others within those entities, particularly during the period inwhich this report is being prepared;  b) Designed such internal control over financial reporting, or caused suchinternal control over financial reporting to be designed under my supervision, toprovide reasonable assurance regarding the reliability of financial reporting and thepreparation of financial statements for external purposes in accordance with generallyaccepted accounting principles;  c) Evaluated the effectiveness of the registrant’s disclosure controls andprocedures and presented in this report my conclusions about the effectiveness of thedisclosure controls and procedures, as of the end of the period covered by this reportbased on such evaluation; and  d) Disclosed in this report any change in the registrant’s internal control overfinancial reporting that occurred during the registrant’s most recent fiscal quarter(the registrant’s fourth fiscal quarter in the case of an annual report) that hasmaterially affected, or is reasonably likely to materially affect, the registrant’sinternal control over financial reporting; and5. I have disclosed, based on my most recent evaluation of internal control over financialreporting, to the registrant’s auditors and the audit committee of the registrant’s board ofdirectors (or persons performing the equivalent functions): a) All significant deficiencies and material weaknesses in the design or operationof internal control over financial reporting which are reasonably likely to adverselyaffect the registrant’s ability to record, process, summarize and report financialinformation; and  b) Any fraud, whether or not material, that involves management or other employeeswho have a significant role in the registrant’s internal control over financialreporting.Dated:March 16, 2007              /s/ Frank E. Thomas   Frank E. Thomas   President and Chief Executive Officer