SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934


Filed by the Registrant [x]
Filed by a party other than the Registrant [ ]

Check the appropriate box:

[ ] Preliminary Proxy Statement
[ ] Confidential,  for  Use  of the  Commission  Only  (as  permitted  by  Rule
    14a-6(e)(2))
[ ] Definitive Proxy Statement
[X] Definitive  Additional Materials
[ ] Soliciting Material Pursuant to Rule 14a-11(c) or Rule 14a-12


                                  Cortech, Inc.
                (Name of Registrant as Specified In Its Charter)


                                       N/A
    (Name of Person(s) Filing Proxy Statement, if other than the Registrant)


Payment of Filing Fee (Check the appropriate box):

[x]  No fee required

[ ]  Fee computed on table below per Exchange Act Rules 14a-6(i)(4) and 0-11.

     1) Title of each class of securities to which transaction applies:


     2) Aggregate number of securities to which transaction applies:


     3) Per  unit  price  or other  underlying  value  of  transaction
        computed  pursuant  to  Exchange  Act Rule 0-11 (set forth the
        amount on which the filing fee is calculated  and state how it
        was determined):


     4) Proposed maximum aggregate value of transaction:


     5) Total fee paid:

[ ]  Fee paid previously with preliminary materials.

[ ]  Check box if any part of the fee is offset as  provided  by  Exchange
     Act Rule  0-11(a)(2)  and identify the filing for which the  offsetting
     fee was paid  previously.  Identify the previous filing by registration
     statement number, or the Form or Schedule and the date of its filing.

         1)       Amount Previously Paid:

         2)       Form, Schedule or Registration Statement No.:

         3)       Filing Party:

         4)       Date Filed:




                     THIS IS YOUR LAST OPPORTUNITY TO SIGN,
                        DATE AND MAIL THE WHITE PROXY TO
                           PRESERVE CORTECH'S CASH AND
                                   TECHNOLOGY!


Dear Fellow Stockholder:

                       WE HAVE A VIABLE STRATEGY FOR CASH
                         PRESERVATION AND FOR MAXIMIZING
                        CORTECH'S SCIENCE AND TECHNOLOGY
                                   PORTFOLIO.

         You have been told by Mr. Koether that he expects  Cortech to lose $5.6
million per year and that we will run out of cash in two years.  This assumption
is based on second quarter  financials  which include one time charges and final
restructuring costs. The extrapolation is erroneous.

         Our plan is to spend a net of approximately $1 to $1.5 million per year
over  the next  two  years  ($.05 to $.08 per  share  per  year).  That  minimal
expenditure  will  allow us to keep our key  people  who have the  expertise  to
explore,  pursue and  finalize  arrangements  with  potential  partners  for our
technology  portfolio.  We will not invest in new scientific  products;  we will
only invest to market and advance our existing portfolio.  If we conclude at any
time during this period that Cortech's compounds and technology do not appear to
have sufficient  promise,  we intend to pursue a strategic  transaction or other
means to put the Company's  remaining funds (which should  approximate $9 to $10
million or about $.50 per share) back in the hands of the shareholders.

                 THE TIME REMAINING TO CAST YOUR PROXY IS SHORT

         The expensive and divisive  proxy contest  forced upon all of us by Mr.
Koether and his "Asset Value Fund" will be over at 9:00 am on September 4, 1998.
This is probably your last  opportunity  to send a clear message to Mr.  Koether
and his hand picked business associates that Cortech has potential compounds and
technology and current  management has a prudent plan to further that technology
while protecting your cash resources.

         By signing,  dating and returning your enclosed WHITE  management proxy
card you can be sure that your Board of Directors  will  protect your  potential
technology and Cortech's cash.

                     WE HAVE THE NECESSARY EXPERTISE AT THE
                       BOARD AND CORPORATE LEVEL TO CREATE
                       VALUE FROM THIS TECHNOLOGY FOR OUR
                                  SHAREHOLDERS.

         We have  previously  discussed the scientific  credentials of our Board
and the  potential of our  science.  We know the history of our  compounds  both
preclinically and clinically;  we know how they are best manufactured,  purified
and synthesized;  we understand our patents;  we know why the compounds may work
and to what  medical  conditions  they are best  applied.  Our  science  is hard
science.  We  know  what  the  FDA  requires  to  bring  compounds  through  the
development  stage and for eventual approval and also what is required to market
them to potential partners. You should also know that Institutional  Shareholder
Services,  the country's leading provider of proxy analysis and voting advice to
major financial  institutions,  has  recommended  that its clients execute their
votes  for  management's  nominees  on the  WHITE  proxy  card and  discard  the
dissident's green proxy card. We urge you to do the same.

         Please  take this  opportunity  to sign,  date and return the  enclosed
WHITE proxy card to ensure that Cortech's  hard won technology  portfolio is not
squandered.  And, in the process,  we will also  protect  much of the  Company's
cash.

         On  behalf of your  Board of  Directors,  thank you for your  continued
support.


                                               Sincerely,

                                               [GRAPHIC OMITTED]
                                               Bert Fingerhut
                                               Chairman of the Board and
                                               Acting Chief Executive Officer

August 25, 1998


                                   Important

                  Your vote is important. Please take a moment to sign, date and
promptly  mail your WHITE  proxy  card in the  postage-paid  envelope  provided.
Remember,  do not return any proxy  card sent to you by Mr.  Koether,  even as a
protest  vote.  Doing so will  invalidate  your  vote for your  Board  nominees.
Properly  voting the enclosed WHITE proxy card  automatically  revokes any proxy
card previously signed by you. Remember, only your latest dated and signed proxy
card will be voted.

                  Even if you are planning to attend the Annual Meeting, we urge
you to  complete  and return the  enclosed  WHITE proxy card so that your shares
will be represented.  If you do attend the Annual  Meeting,  you may revoke your
proxy at any time and vote your shares personally.

                  If your shares are registered in the name of a broker or bank,
only your broker or bank can execute a proxy and vote your shares and only after
receiving your specific instructions.  Please contact the person responsible for
your  account  and direct him or her to  execute a proxy on your  behalf  today.
Additionally,  mail your proxy at once in the envelope provided. If you have any
questions or need further assistance in voting, please call:

                              D.F. King & Co., Inc.
                                 77 Water Street
                              New York, N.Y. 10005
                            (212) 269-5550 (Collect)

                         Call Toll-Free 1-800-848-3051