| CORTEX PHARMACEUTICALS INC/DE/      Item 1A Risk Factors        In addition to the other matters set forth in this Annual Report on Form     10-K,  our continuing operations and the price of our common stock are     subject to the following risks:       Risks related to our business        We have a history of net losses; we expect to continue to incur net losses     and we may never achieve or maintain profitability | 
    
    
      | Since our formation on February 10, 1987 through December 31, 2005, we have     generated only modest operating revenues and we have incurred net losses     approximating dlra63cmam700cmam000 | 
    
    
      | For the years ended December 31, 2005 and 2004,     our net losses were approximately dlra11cmam606cmam000 and dlra6cmam234cmam000, respectively | 
    
    
      | For the six months ended December 31, 2004 and 2003 and fiscal years ended     June 30, 2004 and 2003, our net losses amounted to approximately dlra4cmam046cmam000,     dlra3cmam806cmam000, dlra5cmam994cmam000 and dlra1cmam175cmam000, respectively | 
    
    
      | We have     not generated any revenue from product sales to date, and it is possible     that we will never generate revenues from product sales in the future | 
    
    
      | Even     if we do achieve significant revenues from product sales, we expect to incur     significant operating losses over the next several years | 
    
    
      | We will need additional capital in the future and, if it is not available on     terms acceptable to us, or at all, we may need to scale back our research     and  development  efforts  and  may be unable to continue our business     operations | 
    
    
      | We will require substantial additional funds to advance our research and     development programs and to continue our operations, particularly if we     decide to independently conduct later-stage clinical testing and apply for     regulatory approval of any of our proposed products, and if we independently     undertake marketing and promotion of our products | 
    
    
      | Additionally, we may     require additional funds in the event that we decide to pursue strategic     acquisitions of or licenses for other products or businesses | 
    
    
      | Based                                         - 18 -     ______________________________________________________________________    [46]Table of Contents       on our current operating plan, including planned clinical trials and other     product research and development costs, we estimate that our existing cash     resources, including committed sources of funding from Servier, will be     sufficient to meet our requirements into calendar year 2007 | 
    
    
      | However, we     believe that we will require additional capital to fund on-going operations     beyond  that time | 
    
    
      | Additional funds may result from milestone payments     related to our agreements with Organon and Servier, although there is no     assurance that we will receive milestone payments from Organon or Servier     within the desired timeframe, or at all | 
    
    
      | Additional funds also may result     from the exercise of warrants to purchase shares of our common stock | 
    
    
      | As of     December 31, 2005, warrants to purchase up to approximately 10dtta5 million     shares of our common stock were outstanding | 
    
    
      | In February 2006, warrants to     purchase  approximately 333cmam000 shares of common stock were exercised,     resulting in proceeds of approximately dlra850cmam000 | 
    
    
      | If the remaining warrants     are fully exercised, of which there can be no assurance, such exercise would     provide approximately dlra30cmam000cmam000 of additional capital | 
    
    
      | Our cash requirements in the future may be significantly different from our     current estimates and depend on many factors, including:           •   the results of our clinical trials;           •   the time and costs involved in obtaining regulatory approvals;           •   the costs of setting up and operating our own marketing and sales     organization;           •   the ability to obtain funding under contractual and licensing     agreements;           •   the costs involved in obtaining and enforcing patents or any     litigation by third parties regarding intellectual property; and           •   our success in entering into collaborative relationships with other     parties | 
    
    
      | To finance our future activities, we may seek funds through additional     rounds of financing, including private or public equity or debt offerings     and collaborative arrangements with corporate partners | 
    
    
      | We cannot say with     any certainty that we will be able to obtain the additional needed funds on     reasonable terms, or at all | 
    
    
      | The sale of additional equity or convertible     debt securities could result in additional dilution to our stockholders | 
    
    
      | If     we issued preferred equity or debt securities, these securities could have     rights superior to holders of our common stock, and could contain covenants     that will restrict our operations | 
    
    
      | We might have to obtain funds through     arrangements with collaborative partners or others that may require us to     relinquish rights to our technologies, product candidates or products that     we otherwise would not relinquish | 
    
    
      | In addition, we may be unable to meet our     research spending obligations under our existing licensing agreements and     may be unable to continue our business operations | 
    
    
      | Our  products  rely  on licenses from The Regents of the University of     California, and if we lose access to these technologies, our business would     be substantially impaired | 
    
    
      | Under our agreements with The Regents of the University of California, we     have exclusive rights to AMPAKINE compounds for all applications for which     the University has patent rights, other than endocrine modulation | 
    
    
      | Our  rights to the AMPAKINE compounds are secured by patents or patent     applications  owned wholly by the University or by the University as a     co-owner with us | 
    
    
      | Our existing agreements with the University require the     University to prepare, file, prosecute and maintain patent applications     related to our licensed rights at our expense | 
    
    
      | Such agreements also require     us to make certain minimum annual payments, meet certain milestones or     diligently seek to commercialize the underlying technology | 
    
    
      | - 19 -     ______________________________________________________________________    [47]Table of Contents       Under  our  agreements, we are required to make minimum annual royalty     payments approximating dlra70cmam000 | 
    
    
      | At the end of May 2006, our spending     requirements will decrease to dlra250cmam000 per year, and will continue at that     level until we begin marketing an AMPAKINE compound | 
    
    
      | The commercialization     efforts in the agreements require us to file for regulatory approval of an     AMPAKINE compound before October 2007 | 
    
    
      | Although we currently are in compliance with our obligations under the     agreements, including minimum annual payments and diligence milestones, our     failure to meet any of these requirements could allow the University to     terminate that particular agreement | 
    
    
      | Management believes that it maintains a     strong relationship with the University | 
    
    
      | We  are  at  an  early  stage of development and we may not be able to     successfully develop and commercialize our products and technologies | 
    
    
      | The development of AMPAKINE products is subject to the risks of failure     commonly experienced in the development of products based upon innovative     technologies and the expense and difficulty of obtaining approvals from     regulatory agencies | 
    
    
      | Drug discovery and development is time consuming,     expensive and unpredictable | 
    
    
      | On average, only one out of many thousands of     chemical compounds discovered by researchers proves to be both medically     effective and safe enough to become an approved medicine | 
    
    
      | In the fields that     we target, approximately one in five compounds placed in clinical trials     generally  reaches the market | 
    
    
      | All of our proposed products are in the     preclinical  or  early  clinical stage of development and will require     significant  additional funding for research, development and clinical     testing before we are able to submit them to any of the regulatory agencies     for clearances for commercial use | 
    
    
      | Our trials [that are subject to our     collaborative research arrangements] are being funded by third parties and     do not involve financial commitments from Cortex | 
    
    
      | The process from discovery to development to regulatory approval can take     several years and drug candidates can fail at any stage of the process | 
    
    
      | Historically, in our industry more than half of all compounds in     development failed during Phase II trials and 30prca failed during Phase III     trials | 
    
    
      | We cannot assure you that we will be able to complete successfully     any of our research and development activities | 
    
    
      | Even if we do complete them,     we may not be able to market successfully any of the products or be able to     obtain  the  necessary  regulatory approvals or assure that healthcare     providers and payors will accept our products | 
    
    
      | Due to the     extended testing and regulatory review process required before we can obtain     marketing  clearance, we do not expect to be able to commercialize any     therapeutic drug for several years, either directly or through our corporate     partners or licensees | 
    
    
      | - 20 -     ______________________________________________________________________    [48]Table of Contents       We may not be able to enter into the strategic alliances necessary to fully     develop and commercialize our products and technologies, and we will be     dependent on our corporate partners if we do | 
    
    
      | In addition to our agreements with Organon and Servier, we are seeking other     pharmaceutical company partners to develop other major indications for the     AMPAKINE compounds | 
    
    
      | These agreements would potentially provide us with     additional funds in exchange for exclusive or non-exclusive license or other     rights to the technologies and products that we are currently developing | 
    
    
      | Competition  between  biopharmaceutical  companies  for these types of     arrangements is intense | 
    
    
      | Although we have been engaged in discussions with     candidate companies for some time, we cannot give any assurance that these     discussions will result in an agreement or agreements in a timely manner, or     at all | 
    
    
      | Additionally, we cannot assure you that any resulting agreement will     generate  sufficient  revenues  to  offset  our operating expenses and     longer-term funding requirements | 
    
    
      | Lynch’s laboratories at the University of California, Irvine     that is part of our product development and corporate partnering profile | 
    
    
      | If     our relationship with Dr | 
    
    
      | Lynch commenced in November     1987 and will continue until terminated by either party to the agreement     upon  at  least  60 days’ prior written notice to the other party | 
    
    
      | Our     agreements with our other consultants are generally also terminable by the     consultant  on  short notice | 
    
    
      | We maintain a positive relationship with     Dr | 
    
    
      | Risks related to our industry        If we fail to secure adequate intellectual property protection, it could     significantly harm our financial results and ability to compete | 
    
    
      | Our success will depend, in part, on our ability to get patent protection     for our products and processes in the US and elsewhere | 
    
    
      | We have filed and     intend to continue to file patent applications as we need them | 
    
    
      | If we are unable to obtain sufficient protection of our proprietary rights     in  our  products  or processes prior to or after obtaining regulatory     clearances, our competitors may be able to obtain regulatory clearance and     market competing products by demonstrating the equivalency of their products     to our products | 
    
    
      | If they are successful at demonstrating the equivalency     between the products, our competitors would not have to conduct the same     lengthy clinical tests that we have conducted | 
    
    
      | We also rely on trade secrets and confidential information that we try to     protect by entering into confidentiality agreements with other parties | 
    
    
      | Further, our     competitors may independently learn our trade secrets or develop similar or     superior technologies | 
    
    
      | To the extent that our consultants, key employees or     others apply technological information independently developed by them or by     others to our projects, disputes may arise regarding the proprietary rights     to  such  information | 
    
    
      | We cannot assure you that such disputes will be     resolved in our favor | 
    
    
      | We maintain liability insurance with     coverage limits of dlra10 million per occurrence and dlra10 million in the annual     aggregate | 
    
    
      | We have never been subject to a product liability claim, and we     require each patient in our clinical trials to sign an informed consent     agreement that describes the risks related to the trials, but we cannot     assure  you that the coverage limits of our insurance policies will be     adequate or that one or more successful claims brought against us would not     have a material adverse effect on our business, financial condition and     result of operations | 
    
    
      | Any adverse outcome resulting from a product     liability  claim could have a material adverse effect on our business,     financial condition and results of operations | 
    
    
      | - 22 -     ______________________________________________________________________    [50]Table of Contents       We face intense competition that could result in products that are superior     to the products that we are developing | 
    
    
      | Our competitors     include  many companies, research institutes and universities that are     working  in a number of pharmaceutical or biotechnology disciplines to     develop  therapeutic  products  similar  to  those  we  are  currently     investigating | 
    
    
      | For example, the Pharmaceutical Research and Manufacturers of     America  recently  estimated  that  more  than  100 pharmaceutical and     biotechnology companies are conducting research in the field of neurological     disorders, with over 25 drugs under clinical investigation in the US for     the  treatment  of  Alzheimer’s  disease | 
    
    
      | Virtually  all of the major     multinational pharmaceutical companies have active projects in these areas | 
    
    
      | Most of these competitors have substantially greater financial, technical,     manufacturing, marketing, distribution and/or other resources than we do | 
    
    
      | In     addition,  many of our competitors have experience in performing human     clinical  trials of new or improved therapeutic products and obtaining     approvals from the FDA and other regulatory agencies | 
    
    
      | We have no experience     in conducting and managing later-stage clinical testing or in preparing     applications necessary to obtain regulatory approvals | 
    
    
      | Accordingly, it is     possible that our competitors may succeed in developing products that are     safer or more effective than those that we are developing and may obtain FDA     approvals for their products faster than we can | 
    
    
      | We expect that competition     in this field will continue to intensify | 
    
    
      | We may be unable to recruit and retain our senior management and other key     technical personnel on whom we are dependent | 
    
    
      | We are highly dependent upon key management and technical personnel and     currently  do  not  carry  any  insurance policies on such persons | 
    
    
      | In     particular, we are highly dependent on our Chairman, President and Chief     Executive Officer, Roger G Stoll, Ph | 
    
    
      | D, all of whom have entered into employment     agreements with us | 
    
    
      | Competition for qualified employees among pharmaceutical     and  biotechnology  companies  is  intense | 
    
    
      | The loss of any of our key     management or technical personnel, or our inability to attract, retain and     motivate the additional highly-skilled employees and consultants that our     business requires, could substantially hurt our business and prospects | 
    
    
      | We     cannot assure you that we will be able to retain our existing personnel or     attract additional qualified employees when we need them | 
    
    
      | The regulatory approval process is expensive, time consuming, uncertain and     may prevent us from obtaining required approvals for the commercialization     of some of our products | 
    
    
      | The FDA and other similar agencies in foreign countries have substantial     requirements for therapeutic products | 
    
    
      | Such requirements often involve     lengthy  and  detailed  laboratory, clinical and post-clinical testing     procedures and are expensive to complete | 
    
    
      | It often takes companies many     years to satisfy these requirements, depending on the complexity and novelty     of the product | 
    
    
      | The review process is also extensive, which may delay the     approval process even more | 
    
    
      | According to the Pharmaceutical Research and     Manufacturers  of  America,  historically the cost of developing a new     pharmaceutical from discovery to approval was approximately dlra800 million,     and this amount is expected to increase annually | 
    
    
      | Further, we cannot assure you that the FDA or other regulatory agency will     grant us approval for any of our products on a timely basis, if at all | 
    
    
      | Even     if regulatory clearances are obtained, a marketed product is subject to     continual review, and later discovery of previously unknown problems may     result in restrictions on marketing or withdrawal of the product from the     market | 
    
    
      | - 23 -     ______________________________________________________________________    [51]Table of Contents       Other risks        Our stock price may be volatile and our common stock could decline in value | 
    
    
      | The market price of securities of life sciences companies in general has     been very unpredictable | 
    
    
      | The range of sales prices of our common stock for     the  fiscal  year  ended December 31, 2005, the six-month period ended     December 31, 2004 and fiscal years ended June 30, 2004 and June 30, 2003, as     quoted on The American Stock Exchange, was dlra1dtta96 to dlra3dtta03, dlra1dtta40 to dlra3dtta10,     dlra1dtta62 to dlra4dtta99 and dlra0dtta51 to dlra2dtta49, respectively | 
    
    
      | The following factors, in     addition to factors that affect that market generally, could significantly     impact our business, and the market price of our common stock could decline:           •   competitors announcing technological innovations or new commercial     products;           •   competitors’ publicity regarding actual or potential products under     development;           •   regulatory developments in the US and foreign countries;           •   developments concerning proprietary rights, including patent     litigation;           •   public concern over the safety of therapeutic products; and           •   changes in healthcare reimbursement policies and healthcare     regulations | 
    
    
      | There is a large number of shares of common stock that may be sold, which     may depress the market price of our stock | 
    
    
      | If  all  outstanding warrants and options are exercised prior to their     expiration, approximately 18 million additional shares of common stock could     become freely tradable without restriction | 
    
    
      | Sales of substantial amounts of     common stock in the public market could adversely affect the prevailing     market price of our common stock | 
    
    
      | Our charter document and shareholder rights plan may prevent or delay an     attempt by our stockholders to replace or remove management | 
    
    
      | Certain provisions of our restated certificate of incorporation, as amended,     could make it more difficult for a third party to acquire control of our     business,  even  if  such change in control would be beneficial to our     stockholders | 
    
    
      | Our restated certificate of incorporation, as amended, allows     our Board of Directors to issue up to 549cmam500 shares of preferred stock     without stockholder approval | 
    
    
      | Pursuant to this authority, in February 2002     our Board of Directors adopted a shareholder rights plan and declared a     dividend of a right to purchase one one-thousandth of a share of preferred     stock for each outstanding share of our common stock | 
    
    
      | The ability of our     Board of Directors to issue additional preferred stock and our shareholder     rights plan may have the effect of delaying or preventing an attempt by our     stockholders to replace or remove existing directors and management |