UNITED STATES
                         SECURITIES EXCHANGE COMMISSION
                             Washington, D. C. 20549


                                    FORM 8-K


                                 CURRENT REPORT

     PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

                         DATE OF REPORT  March 16, 2005

                             Commission file number:
                                     0-22923


                           INTERNATIONAL ISOTOPES INC.
             ------------------------------------------------------
             (Exact name of registrant as specified in its charter)


                  Texas                          74-2763837
         ------------------------    -----------------------------------
         (State of incorporation)    IRS Employer Identification Number)


            4137 Commerce Circle, Idaho Falls, Idaho        83401
            ----------------------------------------      ----------
            (Address of principal executive offices)      (Zip Code)


                                 (208) 524-5300
              ----------------------------------------------------
              (Registrant's telephone number, including area code)






Item 8.01.  Other events.

         On March 16, 2005 the registrant  issued a press release reporting that
it had received approximately $1 million in proceeds from the exercise of Series
A warrants.


Item 9.01.  Financial Statements and Exhibits.

         (c)   Exhibits

               99    Press Release dated March 16, 2005.







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                                   SIGNATURES

Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized.


                                       International Isotopes Inc.
                                       (Registrant)



                                       By: /s/ Steve T. Laflin
                                           -------------------------------------
                                           Steve T. Laflin
                                           President and Chief Executive Officer
Date:  March 16, 2004







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