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                                                                    EXHIBIT 10.4


                         HORIZON MEDICAL PRODUCTS, INC.

                                ROBERT J. WENZEL
                       AMENDMENT TO STOCK OPTION AGREEMENT

         THIS AMENDMENT TO STOCK OPTION AGREEMENT ("Amendment") entered into
this April 14, 2004, by and between Horizon Medical Products, Inc., a Georgia
corporation (the "Company"), and Robert J. Wenzel ("the Optionee");

         WHEREAS, the Company and the Optionee entered into that certain Stock
Option Agreement dated October 21, 2003 (the "Stock Option Agreement"), and
desire to amend certain provisions in the Stock Option Agreement as hereinafter
provided;

         1.       The provisions of Section 1 of the Stock Option Agreement are
hereby amended by deleting Section 1(b) and Section 1(c) in their entirety.

         2.       The provisions of Section 2(b) of the Stock Option Agreement
are hereby amended by deleting Section 2(b) in its entirety and by substituting
in lieu thereof the following Section 2(b):

                  (b)      (1)      Subject to the provisions of this Section
         2(b), Optionee's right to exercise the Option shall be conditioned on
         Optionee's continuing as an employee of the Company as follows:

                                    (A)      If Optionee continues as an
                           employee of the Company or a Subsidiary of the
                           Company until January 1, 2005, Optionee may exercise
                           the Option as to one-third (?) of the shares of stock
                           covered by the Option on the Grant Date.

                                    (B)      If Optionee continues as an
                           employee of the Company or a Subsidiary of the
                           Company until January 1, 2006, Optionee may exercise
                           the Option as to one-third (?) of the shares of stock
                           covered by the Option on the Grant Date.

                                    (C)      If Optionee continues as an
                           employee of the Company or a Subsidiary of the
                           Company until January 1, 2007, Optionee may exercise
                           the Option as to the remaining shares of stock
                           covered by the Option on the Grant Date.

                                    (D)      If there is a Change in Control (as
                           defined in the Plan), Optionee may exercise,
                           immediately prior to the occurrence of such Change in
                           Control if Optionee is an employee of

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                           the Company at the time of such vesting, the Option
                           as to the remaining shares of stock covered by the
                           Option on the Grant Date that were not previously
                           exercisable prior to such Change in Control.

                                    (E)      In the event Optionee's employment
                           with the Company is terminated by the Company under
                           Section 2(d) of Optionee's Employment Agreement with
                           the Company, then Optionee may exercise the Option,
                           commencing on the date of the Company's notice to
                           Optionee under Section 2(d), as to the remaining
                           shares of stock covered by the Option on the Grant
                           Date that were not previously exercisable prior to
                           the date of such notice.

                           (2)      The aggregate number of shares of stock
         which Optionee can purchase through the exercise of the Option on any
         date shall equal the excess of the number of shares of stock as to
         which Optionee has the right on such date to purchase over the number
         of shares of stock which Optionee previously has purchased through the
         exercise of the Option. A transfer of employment between the Company
         and a Subsidiary of the Company or between one Subsidiary and another
         Subsidiary of the Company shall not be treated under this Section 2 as
         an interruption or termination of Optionee's employment by the Company
         or a Subsidiary of the Company.

                           (3)      If Optionee's employment by the Company or a
         Subsidiary terminates as a result of his death or total and permanent
         disability (as determined by the Company), the Option may be exercised
         in full (without regard to the employment continuation requirements
         under Section 2(b)(1) above) during the 90-day period immediately
         following Optionee's termination of employment or, if less, during the
         remaining life of the Option under Section 2(a) of the Stock Option
         Agreement and shall expire immediately after the end of such period.

                           (4)      If Optionee's employment by the Company or a
         Subsidiary terminates without cause, the Option to the extent
         exercisable under Section 2(b)(1) above on the date his employment
         terminates may be exercised during the 90-day period immediately
         following his termination of employment or, if less, during the
         remaining life of the Option under Section 2(a) of


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         the Stock Option Agreement and the Option shall expire immediately
         thereafter.

                           (5)      If Optionee's employment by the Company
         terminates "for cause" as defined in Section 2(b) of his Employment
         Agreement with the Company, the Option shall expire on the date his
         employment so terminates, and Optionee shall have no further right to
         exercise the Option granted hereunder.

         3.       The provisions of this Amendment shall become effective on the
date of this Amendment as first set forth above. Except as expressly amended
above, all other provisions of the Stock Option Agreement shall remain in full
force and effect. This Amendment inures to the benefit of, and is binding upon,
the Company and its respective successors and assigns and Optionee, together
with Optionee's executor, administrator, personal representative, heirs, and
legatees. This Amendment is intended by the parties hereto to be the final
expression of their agreement with respect to the subject matter hereof and is
the complete and exclusive statement of the terms thereof, notwithstanding any
representations, statements, or agreements to the contrary heretofore made.
Except for the Stock Option Agreement, this Amendment supersedes and terminates
all prior agreements and understandings between the Company and Optionee
concerning the subject matter of this Amendment. This Amendment may be modified
only by written instrument signed by all of the parties hereto. This Amendment
shall be deemed to be made in, and in all respects shall be interpreted,
construed, and governed by and in accordance with the laws of the State of
Georgia without reference to its conflicts of law principles. This Amendment may
be executed in two or more counterparts, each of which shall be deemed to be an
original, but all of which together shall constitute one and the same
instrument.

          IN WITNESS WHEREOF, the parties hereto have executed this Amendment as
of the date first above written.

                                    HORIZON MEDICAL PRODUCTS, INC.



                                    By:   /s/ Elaine Swygert
                                      ----------------------------------------
                                      Elaine Swygert, Corporate Controller


                                    OPTIONEE:


                                          /s/ Robert J. Wenzel
                                    ------------------------------------------
                                    Robert J. Wenzel



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