MEDICAL DYNAMICS INC
S-3, 1998-09-21
PHOTOGRAPHIC EQUIPMENT & SUPPLIES
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As filed with the Securities and Exchange Commission on September __ , 1998 

                                                          File No. 333-_________

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM S-3

                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933

                             MEDICAL DYNAMICS, INC.
                             ----------------------
               (Exact name of Registrant as specified in charter)

            Colorado                                             84-0631765   
            --------                                             ----------   
  (State or other jurisdiction                                (I.R.S. Employer  
of incorporation or organization)                            Identification No.)
                                                              

                             99 Inverness Drive East
                            Englewood, Colorado 80112
                                 (303) 790-2990
                                 --------------
                   (Address, including zip code and telephone
                             number, including area
                   code, of registrant's principal executive
                                    offices)
                                        
                            Van A. Horsley, President
                             99 Inverness Drive East
                            Englewood, Colorado 80112
                                 (303) 790-2990
                                 --------------
                     (Name, address, including zip code and
                        telephone number, including area
                           code, of agent for service)

          It is requested that copies of all correspondence be sent to:

                         Herrick K. Lidstone, Jr., Esq.
                             Norton o Lidstone, LLC
                          5445 DTC Parkway, Suite 850
                         Englewood, Colorado 80111-3053
                        Telephone Number (303) 221-5552
                        Facsimile Number (303) 221-5553

                        -------------------------------

Approximate  date  of  commencement  of  proposed  sale  to  public:  As soon as
practicable after this Registration Statement becomes effective.

If the only securities  being registered on this form are being offered pursuant
to dividend or interest  reinvestment  plans,  please check the  following  box:
_____

If any of the  securities  being  registered on this form are to be offered on a
delayed or continuous  basis  pursuant to Rule 415 under the  Securities  Act of
1933, other than securities offered only in connection with dividend or interest
reinvestment plans, check the following box: [xx]

If this form is filed to register additional securities for an offering pursuant
to Rule 462(b) under the Securities Act, please check the following box and list
the  Securities  Act  registration  statement  number of the  earlier  effective
registration statement for the same offering. [ ]

If this form is a  post-effective  amendment filed pursuant to Rule 462(c) under
the  Securities  Act,  check  the  following  box and  list the  Securities  Act
registration  statement number of the earlier effective  registration  statement
for the same offering. [ ]

If delivery  of the  prospectus  is  expected  to be made  pursuant to Rule 434,
please check the following box.  [ ]


<PAGE>
<TABLE>
<CAPTION>


                            CALCULATION OF REGISTRATION FEE
- ----------------------------------------------------------------------------------------
Title of Shares to   Amount to be   Proposed maximum    Proposed maximum    Amount of
be registered          registered    aggregate price           aggregate    Registration 
                                            per unit      offering price    Fee
- ----------------------------------------------------------------------------------------
 
<S>                    <C>                  <C>              <C>           <C> 
Common (1)              1,125,000            $2.0625          $2,320,312      $684
- ----------------------------------------------------------------------------------------
Common (2)                630,000            $2.0625          $1,299,375      $383
- ----------------------------------------------------------------------------------------
Common (3)                150,000              $2.58            $387,000      $114
- ----------------------------------------------------------------------------------------
Total                   1,905,000                             $4,006,687    $1,181
- ----------------------------------------------------------------------------------------
</TABLE>
    
     Pursuant  to Rule  416 of the  Securities  Act of 1933 and as  required  by
Section 2(a) of the registration  rights  agreement  between the Company and the
Selling Stockholder,  this registration  statement shall be deemed to cover such
additional  shares  as may be  issued  to the  Selling  Stockholder  to  prevent
dilution resulting from future dividends,  stock distributions,  stock splits or
similar  transactions,  and as provided in the Debentures and Warrants (as those
terms are defined herein).

     Pursuant  to  Rule  429,  the  prospectus   included  herein  combines  the
prospectus  previously  included in the registrant's  Registration  Statement on
Form S-3,  Commission  file number  333-42631.  The prospectus  included in this
registration  statement carries forward 544,532 shares included within the prior
registration statement as follows: 58,667 shares issued prior to the date hereof
upon conversion of the 1997 Debentures which have not, at the date hereof,  been
sold by the Selling Shareholder;  up to 330,000 shares, representing 150% of the
Shares estimated to be issuable to the Selling Shareholder upon conversion of on
its  remaining  1997  Debentures  (in a  total  principal  amount  of  $440,000,
calculated  at  Market  Price  on  September  10,  1998);  up to  71,250  shares
representing  150%  of the  Shares  estimated  to be  issuable  to  the  Selling
Shareholder in payment of interest (in a total estimated  amount of $95,000) its
remaining 1997 Debentures  (assuming such Debentures are held to maturity);  and
84,615 shares issuable upon exercise of the 1997 Warrants.

- ----------------

                                       2
<PAGE>


1    The amount to be registered  includes 825,000 shares (150% of the estimated
     number of shares) to be issued upon  conversion of the 1998  Debentures (as
     defined under  "Description  of Securities"  in the prospectus  included in
     this  form)and  300,000  shares  (150% of the  estimated  number of shares)
     underlying the 1998  Debentures  required to be purchased in December 1998,
     assuming  conversion  at  the  "Market  Price"  (as  defined  in  the  1998
     Debentures) at  September10,  1998. The maximum  offering price is based on
     the last sale price quoted on the Nasdaq  SmallCap  Market on September 10,
     1998 pursuant to Rule 457(c).

2    The amount to be registered  includes 462,000 shares (150% of the estimated
     number  of  shares ) to be  issued  in  payment  of an  estimated  $616,000
     interest on the 1998  Debentures and 168,000 shares to be issued in payment
     of an estimated  $224,000  interest on the 1998  Debentures  required to be
     purchased in December 1998, which could accrue through the term of the 1998
     Debentures  assuming  the  calculation  is based on the  "Market  Price" at
     September 10, 1998.  The maximum  offering  price is based on the last sale
     price quoted on the Nasdaq  SmallCap  Market on September 10, 1998 pursuant
     to Rule 457(c).

3    The amount to be registered  includes  150,000  shares  underlying the 1998
     Warrants (as defined under  "Description  of  Securities" in the prospectus
     included in this form),  including the 40,000 1998 Warrants to be issued in
     connection  with the purchase by the Selling  Shareholder  of an additional
     $400,000 1998 Debentures as required in December 1998.  Registration fee is
     based on the exercise  price of the 1998 Warrants  pursuant to Rules 457(a)
     and (g).


THE REGISTRANT HEREBY AMENDS THIS  REGISTRATION  STATEMENT ON SUCH DATE OR DATES
AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT  SHALL FILE
A FURTHER AMENDMENT WHICH SPECIFICALLY  STATES THAT THIS REGISTRATION  STATEMENT
SHALL  THEREAFTER  BECOME  EFFECTIVE  IN  ACCORDANCE  WITH  SECTION  8(A) OF THE
SECURITIES  ACT OF  1933  OR  UNTIL  THE  REGISTRATION  STATEMENT  SHALL  BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION,  ACTING PURSUANT TO SAID SECTION 8(A),
MAY DETERMINE.

                                        3

<PAGE>



INFORMATION   CONTAINED  HEREIN  IS  SUBJECT  TO  COMPLETION  OR  AMENDMENT.   A
REGISTRATION  STATEMENT  RELATING  TO THESE  SECURITIES  HAS BEEN FILED WITH THE
SECURITIES  AND EXCHANGE  COMMISSION.  THESE  SECURITIES MAY NOT BE SOLD NOR MAY
OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION  STATEMENT  BECOMES
EFFECTIVE.  THIS  PROSPECTUS  SHALL  NOT  CONSTITUTE  AN  OFFER  TO  SELL OR THE
SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE  SECURITIES
IN ANY STATE IN WHICH SUCH OFFER,  SOLICITATION  OR SALE WOULD BE UNLAWFUL PRIOR
TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF ANY SUCH STATE.

                Subject to Completion, Dated _____________, 1998

PROSPECTUS
- ----------
                             MEDICAL DYNAMICS, INC.

                     Up to 2,449,532 Shares of Common Stock
                 Offered for Resale by the Selling Shareholder

     This  Prospectus  relates  to up to  2,449,532  shares of  common  stock of
Medical Dynamics,  Inc., a Colorado  corporation (the "Company" or "MEDY") which
are being  offered and sold by The Tail Wind Fund,  Inc.,  referred to herein as
the "Selling  Shareholder."  The shares being offered by this Prospectus will be
received by the Selling  Shareholder  upon conversion of convertible  securities
described  in "The  1997  Debentures  and  the  1997  Warrants"  and  "The  1998
Debentures and the 1998 Warrants" under the caption  "Description of Securities"
beginning on page 18 of this Prospectus. The number of shares available for sale
by the Selling  Shareholder  has been  estimated  because the  conversion of the
convertible  securities  will be based in part on the market price of the Common
Stock on the date of conversion.

     MEDY's common stock is traded in the over-the-counter  market and is quoted
on the Nasdaq  SmallCap  Market under the symbol  "MEDY." On September 10, 1998,
Nasdaq  reported  that the last sale price of the Common  Stock was  $2.0625 per
share.

     The Company  will not receive any  proceeds  from the sale of the Shares by
the Selling  Shareholder,  but will  receive the  exercise  prices  payable upon
exercise of the 1997  Warrants and the 1998  Warrants (if  exercised  for cash).
There can be no assurance that all or any part of the Warrants will be exercised
or that they will be exercised  for cash.  All expenses  incurred in  connection
with this offering (not  including,  however,  commissions  or discounts paid or
allowed by the Selling Shareholder to underwriters,  dealers, brokers or agents)
are being borne by the Company.

     The Selling  Shareholder  has not advised the Company of any specific plans
for the distribution of the Shares, but it is anticipated that the Shares may be
sold from time to time in transactions (which may include block transactions) on
the Nasdaq  SmallCap market at the market prices then  prevailing.  Sales of the
Shares  also may be made  through  negotiated  transactions  or  otherwise.  The
Selling  Shareholder  and the brokers and dealers  though which the sales of the
Shares may be made may be deemed to be  "underwriters"  within the  meaning  set
forth in the  Securities  Act of 1933,  as amended,  and their  commissions  and
discounts and other compensation may be regarded as underwriters'  compensation.
See "Plan of Distribution" commencing at page 17, below.

                                        4

<PAGE>


     THE  SECURITIES  OFFERED  HEREBY  INVOLVE  A HIGH  DEGREE OF RISK AND THEIR
PURCHASE  SHOULD BE  CONSIDERED  ONLY BY PERSONS ABLE TO SUSTAIN A TOTAL LOSS OF
THEIR INVESTMENT. SEE "RISK FACTORS" BEGINNING ON PAGE 10 OF THIS PROSPECTUS.

     These  Securities  have not been approved or  disapproved by the Securities
and  Exchange  Commission  nor has the  Commission  passed upon the  accuracy or
adequacy of this Prospectus.  Any  representation  to the contrary is a criminal
offense.

     This Prospectus does not constitute an offer or a solicitation by anyone to
any person in any state,  territory, or possession of the United States in which
such offer or  solicitation  is not  authorized by the laws  thereof,  or to any
person to whom it is unlawful to make such offer or solicitation.

                  The date of this prospectus is ______________

                                        5

<PAGE>


                              AVAILABLE INFORMATION
                              ---------------------

     Medical  Dynamics,  Inc.  (referred  to in this  Prospectus  as either  the
"Company"  or  "MEDY")  is  subject  to the  informational  requirements  of the
Securities  Exchange  Act of 1934 (the "1934 Act") and in  accordance  therewith
files  reports,  proxy  statements  and other  information  with the  Securities
Exchange Commission (the "Commission"). Such reports, proxy statements and other
information  can be  inspected  and  copied at the public  reference  facilities
maintained  by the  Commission at Room 1024,  450 Fifth Street N.W.,  Washington
D.C.  20549,  and at the  Regional  Offices of the  Commission:  The World Trade
Center,  Suite 1300, New York, NY 10048;  500 West Madison  Street,  Suite 1400,
Chicago,  Illinois 60661.  Copies of such material can also be obtained from the
Public Reference  Section of the Commission at its principal office at 450 Fifth
Street N.W.,  Washington,  D.C. 20549.  In addition,  MEDY files its information
with the Commission  electronically through EDGAR and the Commission maintains a
Web site  (http://www.sec.gov)  that  contains  reports,  proxy and  information
statements and other information  regarding registrants that file electronically
with the  Commission.  The Common Stock is traded on the Nasdaq  SmallCap Market
under the symbol  "MEDY," and copies of reports and other  information  are also
available for inspection at The Nasdaq Stock Market,  Inc., 1735 K Street, N.W.,
Washington, D.C. 20006.

     MEDY has filed with the  Commission  a  Registration  Statement on Form S-3
(the "Registration Statement") under the Securities Act of 1933 (the "1933 Act")
with  respect  to the  Shares  offered  hereby.  As  permitted  by the rules and
regulations  of the  Commission,  this  Prospectus  does not  contain all of the
information and exhibits set forth in the Registration  Statement, of which this
Prospectus is a part.  Statements  contained herein concerning the provisions of
documents are  necessarily  summaries of such  documents,  and each statement is
qualified in its entirety by  reference to the copy of the  applicable  document
filed with the Commission. Copies of the Registration Statement and its exhibits
are on file at the offices of the Commission  and may be obtained,  upon payment
of the fee prescribed by the  Commission,  or may be examined  without charge at
the public reference  facilities  maintained by the Commission  described above.
For further information, reference is made to the Registration Statement and its
exhibits.

     The Company furnishes Annual Reports to the holders of its securities which
contain  financial  information which have been examined and reported upon, with
an opinion expressed by, its independent certified public accountants.

                       DOCUMENTS INCORPORATED BY REFERENCE
                       -----------------------------------

     The following  documents  filed with the Commission are  incorporated  into
this Prospectus by reference:

     (1)  The  Company's  Annual Report on Form 10-KSB for the fiscal year ended
          September 30, 1997.

                                        6

<PAGE>



     (2)  The Company's  Quarterly Reports on Form 10-QSB for the quarters ended
          December 31, 1997, March 31, 1998, and June 30, 1998.

     (3)  The  Company's  Current  Report on Form 8-K reporting an event of July
          31, 1998, describing the Company's sale of the 1998 Debentures and the
          1998 Warrants to the Selling Shareholder.

     (4)  The Company's  Current  Report on Form 8-K reporting an event of April
          9, 1998,  describing  the  Company's  acquisition  of  Command  Dental
          Systems of Farmington Hills, Michigan.

     (5)  The  Company's  Current  Report  on Form  8-K  reporting  an  event of
          February 6, 1998,  describing the Company's acquisition of Information
          Presentation Systems, Inc.

     (6)  The Company's Current Report on Form 8-K reporting an event of January
          5,  1998,  describing  the  Company's  letter  of  intent  to  acquire
          Information Presentation Systems, Inc.

     (7)  The Company's Current Report on Form 8-K reporting an event of October
          23,  1997,  describing  the  Company's  acquisition  of  Computer  Age
          Dentist, Inc. and sale of the 1997 Debentures and the 1997 Warrants to
          the  Selling  Shareholder,  including  the  amendment  to this  report
          incorporating the required financial statements.

     (8)  The  Company's  proxy  statement  used in  connection  with its annual
          meeting of shareholders held June 11, 1998.

     All documents filed by MEDY pursuant to Sections 13(a),  13(c), 14 or 15(d)
of the 1934 Act  after  the date  hereof  and  prior to the  termination  of the
offering  covered  by this  Prospectus  shall be  deemed to be  incorporated  by
reference herein and to be a part hereof from the date of filing such documents.
Any statement contained herein or in any documents  incorporated or deemed to be
incorporated  by reference  herein shall be deemed to be modified or  superseded
for purposes of this Prospectus to the extent that statements  contained herein,
or in any other  subsequently  filed  document  which also is or is deemed to be
incorporated by reference  herein,  modifies or supersedes  such statement.  Any
such  statement  so modified  or  superseded  shall not be deemed,  except as so
modified or superseded, to constitute a part of this Prospectus.

     Any person  receiving a copy of this  Prospectus may obtain without charge,
upon  written  or  oral  request,  a copy  of  any  and  all  of  the  documents
incorporated  by reference  herein (not including  exhibits to those  documents,
unless  such  exhibits  are  specifically  incorporated  by  reference  into the
information  that the  Prospectus  incorporates).  Requests  for such  documents
should  be  directed  to  Medical  Dynamics,  Inc.,  99  Inverness  Drive  East,
Englewood, Colorado 80112, attn: Van A. Horsley, President; telephone (303) 790-
2990, ext. 13.

                                        7

<PAGE>


     No person has been  authorized in connection with this offering to give any
information  or to make any  representation  not  contained or  incorporated  by
reference  in this  Prospectus  and,  if  given  or made,  such  information  or
representation  must not be relied upon as having been  authorized by MEDY,  the
Selling  Shareholder or any other person. This Prospectus does not constitute an
offer to sell, or a solicitation of an offer to purchase,  any securities  other
than those to which it  relates,  nor does it  constitute  an offer to sell or a
solicitation of an offer to purchase by any person in any  jurisdiction in which
it is unlawful  for such person to make such an offer or  solicitation.  Neither
the  delivery of this  Prospectus  nor any sale made  hereunder  shall under any
circumstances  create any implication  that the information  contained herein is
correct as of any time subsequent to the date hereof.

                              CAUTIONARY STATEMENT

     THIS  PROSPECTUS,  INCLUDING  THE  INFORMATION  INCORPORATED  BY  REFERENCE
HEREIN,  CONTAINS  FORWARD-LOOKING  STATEMENTS WITHIN THE MEANING OF THE PRIVATE
SECURITIES  LITIGATION REFORM ACT OF 1995.  FORWARD-LOOKING  STATEMENTS INCLUDE,
BUT  ARE NOT  LIMITED  TO,  THOSE  STATEMENTS  RELATING  TO  DEVELOPMENT  OF NEW
PRODUCTS,  THE FINANCIAL CONDITION OF MEDY, THE ABILITY TO INCREASE DISTRIBUTION
OF MEDY'S  PRODUCTS,  INTEGRATION OF NEW BUSINESSES MEDY HAS ACQUIRED DURING THE
CURRENT  FISCAL YEAR,  APPROVAL OF MEDY'S  PRODUCTS AS AND WHEN  REQUIRED BY THE
FOOD AND DRUG ADMINISTRATION ("FDA") IN THE UNITED STATES AND SIMILAR REGULATORY
BODIES IN OTHER  COUNTRIES.  THE BUSINESS  AND ECONOMIC  RISKS FACED BY MEDY AND
MEDY'S ACTUAL RESULTS COULD DIFFER  MATERIALLY  FROM THOSE  ANTICIPATED IN THESE
FORWARD-LOOKING STATEMENTS AS A RESULT OF CERTAIN FACTORS AS DESCRIBED ABOVE AND
INCLUDING  THOSE SET FORTH  UNDER  "RISK  FACTORS"  BELOW,  AND UNDER  "ITEM 1 -
BUSINESS"  AND "ITEM 6  MANAGEMENT'S  DISCUSSION  AND ANALYSIS" IN MEDY'S ANNUAL
REPORT ON FORM 10- KSB FOR THE FISCAL YEAR ENDED  SEPTEMBER 30, 1997, AND IN THE
SUBSEQUENT FILINGS PURSUANT TO THE SECURITIES EXCHANGE ACT OF 1934.


                                        8

<PAGE>


                               PROSPECTUS SUMMARY
                               ------------------

     The  following  summary is qualified  in its  entirety by the  information,
including the financial statements, referred to elsewhere in this Prospectus.

The Company

     Medical Dynamics,  Inc., a Colorado corporation  incorporated in March 1971
("MEDY" or the "Company"),  is engaged in the design,  development,  manufacture
and  marketing  of medical  and dental  video  cameras  and  related  disposable
products for a variety of professional  specialties.  MEDY's principal  products
are small,  color,  medical and dental video  camera  systems for use in patient
diagnosis and various  surgical  procedures.  MEDY has been  manufacturing  such
cameras  since  August of 1981.  In  October  1997 MEDY  acquired  Computer  Age
Dentist, Inc. (CADI), a California corporation based in Los Angeles, California.
CADI operates as a  wholly-owned  subsidiary  of the Company which  develops and
sells practice management software and related electronic services to the dental
profession.  In February  1998,  through CADI the Company  acquired  Information
Presentation  Systems,  Inc. of Marietta,  Georgia,  one of the nation's largest
suppliers  of  customized  multimedia  systems  for use in a  variety  of dental
operatory environments. In April 1998, through CADI the Company acquired Command
Dental  Systems of  Farmington  Hills,  Michigan,  which  develops  and  markets
turn-key computer systems for the efficient management of dental practices.

     The Company's principal executive offices and manufacturing  facilities are
at 99 Inverness Drive East, Englewood,  Colorado, 80112. Its telephone number at
that address is (303) 790-2990.

The Securities

     Currently  the only class of securities of MEDY for which there is a public
market is its Common Stock. As of August 31, 1998,  there were 9,991,739  shares
of its Common Stock outstanding.  See "Description of Securities"  commencing on
page 18, of this Prospectus.

The Offering

     Up to 2,449,532  shares of Common Stock (the  "Shares")  are being  offered
hereby by the Selling Shareholder.  These Shares will be received by the Selling
Shareholder upon conversion and exercise of convertible  securities described in
"The 1997  Debentures  and the 1997  Warrants" and "The 1998  Debentures and the
1998 Warrants" under the caption  "Description of Securities"  beginning on page
18 of this  Prospectus.  The number of shares  available for sale by the Selling
Shareholder  has  been  estimated  because  the  conversion  of the  convertible
securities  will be based in part on the market price of the Common Stock on the
date of  conversion.  The Selling  Shareholder  will receive all of the proceeds
from the offer and sale of the Shares.


                                        9

<PAGE>



     The Company  will pay the costs  related to the filing of the  registration
statement in which this Prospectus is included. The Selling Shareholder will pay
its own  expenses  related to the offer and sale of the  Shares,  including  any
underwriter discounts or commissions.



                                  RISK FACTORS
                                  ------------

     The securities  offered hereby are speculative and involve a high degree of
risk,  including,  but not limited to, the risk factors  described  below.  Each
prospective  investor  should  carefully  consider  the  following  risk factors
inherent in and affecting  the business of MEDY and this offering  before making
an investment decision.

(1)  Losses from Operations.  MEDY has a history of net operating losses, which,
     when  accumulated,  total  $18,117,100  through  June  30,  1998.  This has
     resulted in working  capital  shortages from time to time. MEDY can give no
     assurance  that it will be able to operate  profitably  in the future.  The
     likelihood  of the  success  of MEDY  must be  considered  in  light of the
     problems,  expenses,  difficulties,  complications  and  delays  frequently
     encountered in connection  with the regulatory  environments  in which MEDY
     operates,  the problems related to research and development of new products
     subject  to Food and  Drug  Administration  ("FDA")  and  other  government
     approvals and regulations, and substantial competition from other companies
     as to those  products.  (See the  Financial  Statements  and related  notes
     included in MEDY's  Annual  Report on Form 10-KSB for the fiscal year ended
     September 30, 1997,and in subsequent  quarterly reports on Form 10-QSB, all
     of which reports are incorporated by reference.)

(2)  Product  Liability.  MEDY could be subject to claims for personal  injuries
     resulting  from the use of its  products.  Although  MEDY  carries  product
     liability  insurance  coverage in amounts it  believes  to be  commercially
     reasonable  within its industry,  there can be no assurance that the amount
     of coverage would be sufficient to cover any proven  claims.  Claims proven
     and damages  awarded in excess of the coverage limits would have a material
     adverse effect on MEDY. (See "Item 1 - Business" in MEDY's Annual Report on
     Form 10-KSB for the fiscal year ended  September 30, 1997,  which report is
     incorporated by reference.)

(3)  Acquisition  of New  Businesses.  During the  current  fiscal year MEDY has
     acquired three new businesses. The Company is in the process of integrating
     its accounting,  financial  management,  personnel,  and business functions
     with those of its new businesses.  There can be no assurance that MEDY will
     be able to do so  successfully,  or that it will be able to do so on a cost
     effective  basis.  (See "Item 1 Business" in MEDY's  Annual  Report on Form
     10-KSB for the fiscal year ended  September  30, 1997 and the reports filed
     subsequently thereto, which reports are incorporated by reference.)


                                       10

<PAGE>



(4)  Need for Additional  Financing.  The Company has not generated  earnings in
     the past several years and there can be no assurance that MEDY will be able
     to do so in the  future.  Although  management  believes  that the  capital
     available to MEDY is sufficient to fund its  short-term  operations,  it is
     unable to predict what  additional  expenses will be incurred  beyond those
     contemplated since research, development, and marketing programs frequently
     involve  unanticipated  expenditures.  To the extent additional  capital is
     needed,  MEDY may seek financing through additional  offerings of equity or
     debt  securities.  Sales of additional  equity  securities could dilute the
     ownership interest of existing  shareholders,  including  investors in this
     Offering.  Sales of debt securities  would  necessarily  result in interest
     expense  and would  risk the loss of the  Company's  assets if MEDY were to
     become unable to pay the interest.  Offerings of debt securities also could
     include  conversion  features  requiring the issuance of additional debt or
     equity  securities  which,  ultimately,  also could dilute the ownership of
     prior shareholders, including purchasers of the shares being offered by the
     Selling Shareholder in this Offering.

(5)  Technological  Change and Risk of Technological  Obsolescence.  The medical
     and dental camera industry and the dental practice management industry, the
     Company's  two  principal  lines of  business,  are  subject  to rapid  and
     significant  technological  change.  Accordingly,  MEDY's viability will be
     dependent  on  its  ability  to  introduce   competitive  products  to  the
     marketplace in a timely manner and enhance and improve such products to its
     customers'  satisfaction.  There can be no assurance that MEDY will be able
     to keep pace with technological  developments or that its products will not
     become  obsolete.  (See "Item 1 Business" in MEDY's  annual  report on Form
     10-KSB for the fiscal  year  ended  September  30,  1997,  which  report is
     incorporated by reference.)

(6)  Competition.  MEDY's  operations  and  product  lines are subject to a high
     level of competition  from foreign,  as well as domestic,  manufacturers of
     color medical and dental video cameras and other medical  devices which are
     currently  manufactured  and sold by MEDY, or which MEDY may develop in the
     future.   Some   competitors  are  affiliated  with  large  companies  with
     substantial  economic and personnel resources which greatly exceed those of
     MEDY.  There  can be no  assurance  that  MEDY  will  be  able  to  compete
     successfully  with  other  companies.  (See "Item 1 -  Business"  in MEDY's
     annual report on Form 10-KSB for the fiscal year ended  September 30, 1997,
     which report is incorporated by reference.)

(7)  Potential Conflicts of Interest.  There have been significant  conflicts of
     interest in the operation and management of MEDY, including the purchase by
     MEDY of certain  equipment  and patents from its  directors  and  executive
     officers,  granting of royalties,  loans made available to MEDY through its
     Chairman,  and the  employment by MEDY of sons of two of MEDY's  directors.
     These transactions were not negotiated at arms' length,  although the Board
     of Directors  believes that all of these  transactions  were fair to and in
     the best interests of MEDY. (See "Item 1 - Business" and "Item 13 - Certain
     Relationships  and Related  Transactions"  in MEDY's  Annual Report on Form
     10-KSB for the fiscal  year  ended  September  30,  1997,  which  report is
     incorporated by reference.)

                                       11

<PAGE>



(8)  Dependence on Management. At present, the success of MEDY is dependent upon
     the active  participation of its management,  MEDY's Chairman and principal
     shareholder,  Dr. Adair, and its Chief Executive Officer,  Van Horsley, Dr.
     Adair's  step-son.  CADI's  operations are  significantly  dependent on the
     continued  availability  of the services of Daniel L.  Richmond and Chae U.
     Kim. The loss of the services of any of these persons would have a material
     adverse effect on the Company.  In the event of such a loss,  MEDY can give
     no  assurance  that  it  could  replace  either  person  without  incurring
     substantial  additional  expense.  MEDY does not have employment  contracts
     with either Mr.  Horsley or Dr.  Adair.  Both Messrs.  Richmond and Kim are
     subject to five year employment agreements.

(9)  Government   Regulation.   Because   certain  of  the  products  that  MEDY
     manufactures  are used in  surgery  and  other  medical  applications,  the
     products are subject to  regulations  of and close  scrutiny by agencies of
     the federal government,  including the FDA. MEDY can give no assurance that
     it will be able to comply fully with all of the  government  regulations to
     which it is subject.  Failure to comply strictly with all FDA  requirements
     (not all of which are  written)  may result in  sanctions  as severe as the
     cessation  of MEDY's  manufacturing  business  which  would have a material
     adverse effect on MEDY. (See "Item 1 - Business" in MEDY's Annual Report on
     Form 10-KSB for the fiscal year ended  September 30, 1997,  which report is
     incorporated by reference.)

(10) Protection of Technology. Although MEDY obtains secrecy agreements from its
     employees  and others  having access to its trade secrets and holds patents
     on certain of its  technology,  such  agreements  and patents do not afford
     complete  protection  against the  unauthorized  use of such information by
     others. Furthermore,  the costs of prosecuting persons who may accidentally
     or  intentionally  infringe on MEDY's  patents or divulge its trade secrets
     can be expensive and time consuming.  The  unauthorized use of MEDY's trade
     secrets and the  infringement of its patents could have a material  adverse
     effect on MEDY and its  ability to  compete.  (See "Item 1 -  Business"  in
     MEDY's Annual Report on Form 10-KSB for the fiscal year ended September 30,
     1997, which report is incorporated by reference.)

(11) Limited  Public  Market.  There  currently is a limited  public  market for
     MEDY's Common Stock. No assurance can be given that a market for the Common
     Stock will continue  subsequent to this offering or that purchasers will be
     able  to  resell  their  securities  at the  purchase  prices  paid in this
     Offering,  or liquidate their investment without  considerable delay, if at
     all. If a market does continue,  the price may be highly volatile.  Factors
     such  as  those  discussed  in  this  "Risk  Factors"  section  may  have a
     significant  impact on the market price of the  securities  offered.  Also,
     some brokerage  firms may not effect  transactions in securities that trade
     below a  stipulated  price.  Further,  most lending  institutions  will not
     permit the use of low-priced or thinly traded  securities as collateral for
     loans.

                                       12

<PAGE>


(12) Dependence on Principal Customers.  In the past, MEDY has been dependent on
     a limited  number of principal  customers (see MEDY's Annual Report on Form
     10-KSB for the fiscal year ended  September  30, 1997,  "Item 1 - Business"
     and Item 6 - "Management's  Discussion and Analysis of Financial  Condition
     and  Results  of  Operations"  therein,  which  report is  incorporated  by
     reference). As a result of acquisitions during the current fiscal year, the
     Company  does not expect that it will have any single  customer  accounting
     for more than 10% of its sales during the current fiscal year.

(13) No Dividends Paid or  Contemplated.  No dividends have been paid by MEDY in
     the past and  dividends are not  contemplated  in the  foreseeable  future.
     Investors who anticipate  the need of either  immediate or future income by
     way of dividends from their investment  should refrain from the purchase of
     Shares offered hereby.

(14) Year 2000  Compliance.  Although  there can be no assurance,  MEDY does not
     anticipate  that it will suffer any adverse impact as a result of Year 2000
     computer software issues.


                                 USE OF PROCEEDS
                                 ---------------

     The Selling  Shareholder  will  receive all  proceeds  from the sale of the
Shares offered and sold under this Prospectus.

     If, and to the extent,  the 1997 and 1998  Warrants are exercised for cash,
the Company will receive  proceeds equal to the aggregate  exercise price of the
warrants,  approximately $672,600 if all of the warrants are exercised for cash.
The 1997 and 1998 Warrants  allow the holder to effect a "cashless"  exercise of
the  Warrants.  These  warrants  are  described  under  the  captions  "The 1997
Debentures  and  Warrants"  and  "The  1998  Debentures  and  Warrants"  in this
Prospectus under "Selling  Shareholder."  Any proceeds the Company receives from
the exercise of these warrants will be used for working capital.


                                  THE COMPANY
                                  -----------

     Medical Dynamics,  Inc., a Colorado corporation  incorporated in March 1971
(referred  to herein as "MEDY" or the  "Company"),  is  engaged  in the  design,
development,  manufacture  and marketing of medical and dental video cameras and
related disposable  products for a variety of professional  specialties.  MEDY's
principal products are small, color, medical and dental video camera systems for
use in  patient  diagnosis  and  various  surgical  procedures.  MEDY  has  been
manufacturing  such cameras  since August of 1981. In October 1997 MEDY acquired
100% of the outstanding  capital stock of Computer Age Dentist,  Inc.  (CADI), a
California corporation based in Los Angeles,  California. CADI is engaged in the
development  and sale of Practice  Management  Software  and related  electronic
services  to the dental  profession.  In February  1998 CADI  acquired by merger
Information Presentation Systems, Inc. of Marietta, Georgia, one of the nation's
largest  suppliers  of  customized  multimedia  systems  for use in a variety of
dental  operatory  environments.  In April 1998, CADI acquired by merger Command
Dental  Systems of  Farmington  Hills,  Michigan,  which  develops  and  markets
turn-key computer systems for the efficient management of dental practices.

     MEDY's principal  executive offices and manufacturing  facilities are at 99
Inverness Drive East, Englewood,  Colorado,  80112. Its telephone number at that
address is (303) 790-2990.


                               SELLING SHAREHOLDER
                               -------------------

     The Tail Wind Fund, Ltd. ("Tail Wind" or the "Selling  Shareholder") is not
an affiliate of MEDY,  nor has the Selling  Shareholder  or any affiliate of the
Selling Shareholder had any position, office or other material relationship with
MEDY  within  the past three  years,  except as  disclosed  below.  Tail  Wind's
business address is Windermere House, P.O. Box SS-5539, Nassau, Bahamas.

                                       13

<PAGE>



     Of the Shares offered  hereby,  58,667 have been issued upon the conversion
of certain of the 1997 Debentures.  The balance are issuable upon the conversion
of the remainder of the 1997  Debentures  (of which  $500,000 in face amount are
outstanding),  upon the conversion of the outstanding  1998 Debentures (of which
$1,100,000 in face amount are  outstanding and the remainder of $400,000 will be
issued in connection  with the closing to occur on or before December 31, 1998),
the payment of interest  related  thereto and upon the  exercise of the 1997 and
1998 Warrants. The Selling Shareholder does not own, directly or indirectly, any
other shares of Common Stock.  Assuming the Selling Shareholder sells all Shares
offered  hereby,  although  there  is no  requirement  that  it do so,  it  will
beneficially own no shares of Common Stock at the conclusion of the Offering.

     The exact  number of shares to be offered and sold is not known at the date
of this  Prospectus  because  the shares  will be acquired  upon  conversion  of
convertible  securities at varying prices, most of which will be converted based
on the market price of the Common Stock on the date of  conversion.  The Selling
Shareholder will at no time own more than 4.99% of the Common Stock because of a
limitation   contained  in  the  documents   governing  the  conversion  of  the
convertible  securities.  This limitation prohibits the Selling Shareholder from
converting the convertible securities or exercising the 1997 or 1998 Warrants to
the extent that  conversion or exercise would result in the Selling  Shareholder
owning  more than 4.99% of the issued and  outstanding  shares of Common  Stock.
This limitation is referred to in this Prospectus as the "5% Limitation." If all
the Shares  being  offered by the  Selling  Shareholder  are sold,  the  Selling
Shareholder  will own no shares of the  Company's  common  stock  following  the
completion of the Offering.

     The  following is a  description  of the  transaction  in which the Selling
Shareholder   acquired  the  convertible   securities  which,  if  converted  or
exercised,  will result in the  issuance of the Shares  offered for sale in this
Prospectus by the Selling Shareholder.

The 1997 Debentures and Warrants

     On October 31, 1997, in a private  placement  offering under  Regulation D,
the Selling Shareholder purchased debentures in an aggregate principal amount of
$1,100,000 (the "1997 Debentures").  The 1997 Debentures bear interest at 8% per
annum,  with  interest  payable  semi-annually  on April 5 and October 5 of each
year, commencing April 5, 1998. Principal and accrued but unpaid interest is due
in full on October 31, 2000.  Events of default under the 1997 Debentures  which
could result in  acceleration of amounts due, among other things,  include:  (i)
failure to pay any amounts of  principal or interest  when due;  (ii) failure of
the Common Stock to be listed on the Nasdaq SmallCap Market, the Nasdaq National
Market,  the New York Stock  Exchange,  or the American Stock  Exchange;  and/or
(iii) events of bankruptcy and similar events.


                                       14

<PAGE>



     The Company may, at its option, pay accrued interest on the 1997 Debentures
with shares of its Common Stock valued at "Market Price." For the purpose of the
1997 Debentures,  "Market Price" means the average of the two lowest closing bid
prices of the Common  Stock as reported by The Nasdaq  Stock  Market  during the
immediately  preceding  60-trading  day  period.  Based on the  Market  Price on
September  10, 1998,  assuming all accrued  interest is paid in shares of Common
Stock and the 1997  Debentures  are held to  maturity  (thereby  accruing  total
interest of approximately $95,000), the Company will pay Tail Wind approximately
47,500 shares of Common Stock (the "1997 Interest Shares").

     Subject  only to the 5%  Limitation,  Tail Wind is  entitled to convert the
1997 Debentures, in whole or in part, at any time into shares of Common Stock at
the lesser of $3.45 per share or Market  Price.  Assuming that Tail Wind can and
elects to convert the full amount of the 1997  Debentures  into shares of Common
Stock at the Market Price on September 10, 1998, Tail Wind would receive 275,000
shares of Common Stock (the "1997 Conversion Shares").

     In connection with Tail Wind's purchase of the 1997 Debentures, the Company
issued to Tail Wind  warrants to purchase up to 84,615  shares of Common  Stock,
exercisable  through  October 31, 2000 at a price of $3.375 per share (the "1997
Warrants").  The 1997 Warrants contains standard anti-dilution provisions should
MEDY issue stock dividends or conduct a stock split or  reorganization,  or upon
occurrence  of certain  other  events.  Subject to the 5%  Limitation,  the 1997
Warrants are currently exercisable.


The 1998 Debentures and Warrants

     On July 31, 1998, in a private  placement  offering under Regulation D, the
Selling  Shareholder  purchased  debentures in an aggregate  principal amount of
$1,100,000 , and committed to purchase an additional  $400,000  principal amount
on or before  December 31, 1998,  (the "1998  Debentures").  The 1998 Debentures
bear interest at 8% per annum, with interest payable  semi-annually on January 5
and July 5 of each year,  commencing January 5, 1999.  Principal and accrued but
unpaid  interest is due in full on July 31,  2003.  Events of default  under the
1998  Debentures  which could result in acceleration of amounts due, among other
things,  include:  (i) failure to pay any amounts of principal or interest  when
due;  (ii)  failure  of the  Common  Stock to be listed on the  Nasdaq  SmallCap
Market, the Nasdaq National Market, the New York Stock Exchange, or the American
Stock Exchange; and/or (iii) events of bankruptcy and similar events.

                                       15

<PAGE>


     The Selling  Shareholder has agreed to purchase 1998 Debentures equal to an
additional  $400,000 on or before December 31, 1998,  subject only to conditions
which  are  not  within  the  control  of  the  Selling  Shareholder,  including
conditions  relating  to the then  market  price  of the  Common  Stock  and the
effectiveness of the registration statement of which this Prospectus is a part.

     The Company may, at its option, pay accrued interest on the 1998 Debentures
with  shares of its Common  Stock  valued at Market  Price.  Based on the Market
Price  on  September  10,  1998,  assuming  all  accrued  interest  on the  1998
Debentures  is paid in shares of Common Stock and that the 1998  Debentures  are
held to maturity, the Company will pay Tail Wind approximately 308,000 shares of
Common Stock (the "1998 Interest Shares").

     Tail Wind is entitled to convert the 1998 Debentures,  in whole or in part,
into shares of Common Stock at the lesser of Market Price or the "Ceiling Price"
at any time  from  and  after  November  29,  1998 as to  one-third  of  the1998
Debentures,  on and  after  January  27,  1999  as to  two-thirds  of  the  1998
Debentures,  and on and after  March 29,  1999 as to the full amount of the 1998
Debentures.  For purposes of the 1998 Debentures,  "Ceiling Price" means 120% of
the  average  closing  bid price of the  Common  Stock for the 20  trading  days
immediately  preceding the effective  date of this  registration  statement.  If
conversion has not occurred by July 31, 2000, the Ceiling Price  thereafter will
mean 120% of the Market Price on July 31, 2000 if the adjustment would result in
a lower price,  except that the Ceiling  Price will not be adjusted  below $2.25
per share.  Assuming that Tail Wind can and elects to convert the full amount of
the 1998  Debentures  into shares of Common Stock,  based on the Market Price on
September 10, 1998,  Tail Wind would receive 750,000 shares of Common Stock (the
"1998  Conversion  Shares",  including  Shares  issuable upon  conversion of the
$400,000 of 1998 Debentures not yet issued to Tail Wind).


                                       16

<PAGE>



     In connection with Tail Wind's purchase of the 1998 Debentures, the Company
issued to Tail Wind  warrants to purchase up to 110,000  shares of Common Stock,
exercisable  through  July 31, 2003 at a price of $2.58 per share.  In addition,
the Company is required to issue to Tail Wind warrants to purchase an additional
40,000  shares of Common  Stock at the  closing of Tail  Wind's  purchase of the
remaining  $400,000  principal  amount  in 1998  Debentures  in  December  1998.
Collectively, these 150,000 warrants are referred to as the "1998 Warrants." The
1998  Warrants  contains  anti-dilution   provisions  should  MEDY  issue  stock
dividends  or conduct a stock split or  reorganization,  or upon  occurrence  of
certain other events. Subject to the 5% Limitation, 110,000 of the 1998 Warrants
are currently  exercisable and the remaining 40,000 of the 1998 Warrants will be
exercisable immediately upon issuance.

     If MEDY is  unable to meet the  effectiveness  requirement  for the  shares
underlying the 1998  Debentures  and Warrants,  maintain  effectiveness  of this
registration  statement,  or  maintain  the  listing of the Common  Stock on the
Nasdaq  SmallCap  or the NMS  Market (or senior  stock  exchange),  MEDY will be
required to pay liquidated damages to the Selling Shareholder in an amount equal
to 2% of the aggregate principal amount of the 1998 Debentures for each month or
portion  thereof  following  the  required  effectiveness  date during which the
registration  statement  is not  effective.  In such event,  MEDY shall bear all
reasonable  fees or costs incurred by Tail Wind for legal counsel as a result of
the filing of any post-effective  amendments to the Registration Statement.  The
amounts  payable as  liquidated  damages  pursuant  to this  paragraph  shall be
payable in cash (not Common Stock).  The registration  rights agreement contains
standard  cross-indemnification  provisions and  requirements  for  contribution
should the indemnification provisions be found to be unavailable.


                              PLAN OF DISTRIBUTION
                              --------------------

     The Selling Shareholder has advised MEDY that it may sell the Shares in one
or more transactions  (which may involve one or more block  transactions) on the
over-the-counter  markets on Nasdaq and upon terms then  prevailing or at prices
related  to  the  then  current  market  price,  or  in  separately   negotiated
transactions or in a combination of such transactions. The Shares offered hereby
may be sold by one or more of the following methods,  without limitation:  (a) a
block  trade in which a broker or dealer so  engaged  will  attempt  to sell the
shares as agent but may  position and resell a portion of the block as principal
to facilitate the transaction;  (b) purchases by a broker or dealer as principal
and resale by such broker or dealer for its account pursuant to this Prospectus;
(c)  ordinary  brokerage  transactions  and  transactions  in which  the  broker
solicits purchasers; (d) privately negotiated transactions; and (e) face-to-face
transactions between sellers and purchasers without a broker-dealer. The Selling
Shareholder  may  also  sell  Shares  in  accordance  with  Rule 144  under  the
Securities Act of 1933, as amended,  if Rule 144 is then available.  The Selling
Shareholder  may be deemed to be an  underwriter  of the Shares  offered  hereby
within the meaning of the Securities Act of 1933, as amended.


                                       17

<PAGE>



     In effecting sales,  brokers or dealers engaged by the Selling  Shareholder
may arrange for other brokers or dealers to participate.  Such broker or dealers
may receive  commissions or discounts from the Selling Shareholder in amounts to
be negotiated by the Selling Shareholder. The Selling Shareholder may enter into
hedging  transactions with  broker-dealers  and the broker-dealers may engage in
short  sales of the Common  Stock in the course of hedging  the  positions  they
assume  with  the  Selling  Shareholder  (including,   without  limitation,   in
connection with the  distribution  of the Common Stock by such  broker-dealers).
The Selling  Shareholder  may also engage in short sales of the Common Stock and
may enter into option or other transactions with broker-dealers that involve the
delivery  of the  Common  Stock to the  broker-dealers,  who may then  resell or
otherwise  transfter  such  Common  Stock.  Such  broker-dealers  and any  other
participating broker-dealers may, in connection with such sales, be deemed to be
underwriters  within the meaning of the Securities Act of 1933, as amended.  Any
discounts or commissions received by any such broker-dealers may be deemed to be
underwriting  discounts and  commissions  under the  Securities  Act of 1933, as
amended.

     In  order  to  comply  with  the  securities  laws of  certain  states,  if
applicable,  the  Shares  will  be  sold  in  such  jurisdictions  only  through
registered or licensed broke-dealers.

     MEDY  will  pay  all  of  the  expenses  incident  to the  filing  of  this
Registration  Statement,  estimated to be $25,000.  These expenses include legal
and  accounting  fees in connection  with the  preparation  of the  Registration
Statement of which this Prospectus is a part, legal and other fees in connection
with the  qualification  of the sale of the  Shares  under  the laws of  certain
states (if any),  registration  and filing fees,  printing  expenses,  and other
expenses.  The Selling  Shareholder will pay all other expenses  incident to the
offering  and  sale of the  Shares  to the  public,  including  commissions  and
discounts of underwriters,  brokers,  dealers or agents, if any. MEDY has agreed
to use its best efforts to keep the  registration  of the Shares  offered hereby
effective  until the date upon  which all of the Shares  offered by the  Selling
Shareholder have been sold.

                            DESCRIPTION OF SECURITIES
                            -------------------------

Common Stock

     Authorized. MEDY is authorized to issue 30,000,000 shares of $.01 par value
common stock (the "Common  Stock").  No holder of any shares of Common Stock has
any preemptive right to subscribe to any of MEDY's securities. Upon dissolution,
liquidation  or winding up of MEDY,  the  assets  will be divided  pro rata on a
share-for-share  basis among holders of the shares of Common Stock and Preferred
Stock if any shares are outstanding.  All shares of Common Stock outstanding are
fully paid and nonassessable and, when issued, the shares offered hereby will be
fully paid and nonassessable.

                                       18

<PAGE>


     Issued and Outstanding. On August 31, 1998, MEDY had issued and outstanding
9,991,739  shares of Common  Stock.  This  number  does not  include  any of the
estimated  2,449,532 shares comprising the 1997 and 1998 Conversion  Shares, the
1997 and 1998 Interest Shares and the 1997 and 1998 Warrant Shares which, if and
when issued, will be offered for sale pursuant to this Prospectus by the Selling
Shareholder.  For information about these shares, see the description  contained
under the caption "Selling Shareholder" above.

     Dividends.  Holders of Common Stock are entitled to dividends  when, as and
if declared by the Board of Directors out of funds legally  available  therefor,
subject to the rights, if any, of holders of any outstanding shares of Preferred
Stock.  MEDY has not declared or paid any dividends on its Common Stock and does
not  anticipate  the  declaration  or payment of  dividends  in the  foreseeable
future.

     No Cumulative  Voting.  Each holder of Common Stock is entitled to one vote
per share with  respect to all matters  that are required by law to be submitted
to stockholders.  The stockholders are not entitled to cumulative  voting in the
election of directors.  Accordingly,  the holders of more than 50% of the shares
voting for the  election of  directors  can elect 100% of the  directors if they
choose to do so; and, in such event,  the holders of the remaining less than 50%
of the shares voting for the election of the  directors  will be unable to elect
any person or persons to the Board of Directors.

     No  Preemptive  Rights.  Holders  of  Common  Stock  are  not  entitled  to
preemptive rights to purchase additional shares of Common Stock when offered for
sale by the Company.

Preferred Stock

     MEDY is  authorized  to issue up to  5,000,000  shares  of $.001  par value
Preferred  Stock,  in series to be  designated  by the Board of  Directors  (the
"Preferred  Stock"). No shares of Preferred Stock have been issued and it is not
contemplated  that any shares of  Preferred  Stock will be issued by MEDY in the
immediate  future;  however,  the Board may use its  ability to issue  Preferred
Stock to effect the business purposes of MEDY.

     Material  provisions  concerning the terms of any series of Preferred Stock
such as dividend rate, conversion features and voting rights, will be determined
by the Board of Directors of MEDY at the time of such  issuance.  The ability of
the  Board to issue  Preferred  Stock  also  could be used by MEDY as a means of
resisting a change of control of MEDY and,  therefore,  could be  considered  an
"anti-takeover" device.

                                       19

<PAGE>


1997 and 1998 Debentures and Warrants

     For a description of these  securities,  see "1997 Debentures and Warrants"
and "1998  Debentures and Warrants" under the caption  "Selling  Shareholder" in
this Prospectus.

Stock Options

     Exclusive  of the 1997  Warrants and the 1998  Warrants,  on July 31, 1998,
MEDY had outstanding stock options to purchase  3,801,237 shares of Common Stock
exercisable  at  exercise  prices  ranging  between  $1.00 and $4.50 per  share.
Certain of these options are only exercisable upon the Company achieving certain
performance goals.

Transfer and Warrant Agent

     The transfer  agent for MEDY's  Common  Stock and Warrant  Agent for MEDY's
Common Stock is  Continental  Stock  Transfer & Trust Co., 72 Reade Street,  New
York, New York 10007.


                                  LEGAL MATTERS
                                  -------------

     The firm of Norton o Lidstone, LLC, 5445 DTC Parkway, Suite 850, Englewood,
CO 80111, has acted as counsel for MEDY in connection with this offering and has
passed upon the validity of the securities offered hereby.

                                     EXPERTS
                                     -------

     The  financial  statements  of Medical  Dynamics,  Inc. for the years ended
September  30, 1997 and 1996  incorporated  into the  Registration  Statement by
reference  have been audited by Hein +  Associates  LLP,  independent  certified
public accountants, upon the authority of that firm as experts in accounting and
auditing.

                                       20

<PAGE>



NO  PERSON  HAS  BEEN   AUTHORIZED   TO  GIVE  ANY   INFORMATION   OR  MAKE  ANY
REPRESENTATIONS  NOT CONTAINED IN THIS  PROSPECTUS  AND, IF GIVEN OR MADE,  SUCH
INFORMATION OR REPRESENTATIONS  MUST NOT BE RELIED UPONAS HAVING BEEN AUTHORIZED
BY MEDY. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFER TO SELL OR SOLICITATION OF
AN OFFER TO BUY ANY OF THE  SECURITIES TO ANY PERSON IN ANY  JURISDICTION  WHERE
SUCH OFFER OR SOLICITATION WOULD BE UNLAWFUL. THE DELIVERY OF THIS PROSPECTUS AT
ANY TIME DOES NOT IMPLY  THAT THE  INFORMATION  HEREIN IS CORRECT AS OF ANY TIME
SUBSEQUENT TO ITS DATE.


                             MEDICAL DYNAMICS, INC.


TABLE OF CONTENTS
- -----------------

AVAILABLE INFORMATION
DOCUMENTS INCORPORATED BY REFERENCE
PROSPECTUS SUMMARY
RISK FACTORS
USE OF PROCEEDS
THE COMPANY
SELLING SHAREHOLDER
PLAN OF DISTRIBUTION
DESCRIPTION OF SECURITIES
LEGAL MATTERS
EXPERTS


                                       21

<PAGE>



                                     PART II
                     INFORMATION NOT REQUIRED IN PROSPECTUS

Item 14. Other Expenses of Issuance and Distribution.
         --------------------------------------------

     The  following  is an  itemization  of  all  expenses  (subject  to  future
contingencies)  incurred or to be incurred by the Registrant in connection  with
the issuance and distribution of the securities being offered.  All expenses are
estimated except the registration fee.


                  Registration and filing fee                  $ 1,181
                  Printing                                       1,000
                  Accounting fees and expenses                   5,000
                  Legal fees and expenses                       12,000
                  Blue sky filing fees and expenses              2,000
                  Transfer and Warrant Agent fees                  500
                  Miscellaneous                                  3,319
                                                               -------

                             Total                             $25,000
                                                               =======

Item 15. Indemnification of Directors and Officers
         -----------------------------------------

     Section  7-109-102 of the Colorado  Revised  Statutes and the  Registrant's
Articles  of  Incorporation,   under  certain   circumstances  provide  for  the
indemnification of the Registrant's officers,  directors and controlling persons
against liabilities which they may incur in such capacities.  A summarization of
the  circumstances  in which such  indemnification  is provided for is contained
herein,  but that  description  is qualified in its entirety by reference to the
Registrant's  Articles of Incorporation and the relevant Section of the Colorado
Revised Statutes.

     In general,  the statute  provides  that any  director  may be  indemnified
against  liabilities  (including the  obligation to pay a judgment,  settlement,
penalty,  fine or  expense),  incurred  in a  proceeding  (including  any civil,
criminal  or  investigative  proceeding)  to which the  director  was a party by
reason of such status.  Such indemnity may be provided if the director's actions
resulting in the liabilities: (i) were taken in good faith; (ii) were reasonably
believed to have been in the Registrant's  best interest with respect to actions
taken in the director's official capacity; (iii) were reasonably believed not to
be opposed to the Registrant's best interest with respect to other actions;  and
(iv) with respect to any criminal action, the director had no reasonable grounds
to believe the actions were unlawful. Unless the director is successful upon the
merits in such an action,  indemnification may generally be awarded only after a
determination  of  independent  members of the Board of Directors or a committee
thereof,  by independent  legal counsel or by vote of the shareholders  that the
applicable standard of conduct was met by the director to be indemnified.

                                       22

<PAGE>


     The  statutory   provisions  further  provide  that  unless  limited  by  a
corporation's  articles  of  incorporation,  a director or officer who is wholly
successful, on the merits or otherwise, in defense of any proceeding to which he
as a party, is entitled to receive  indemnification against reasonable expenses,
including  attorneys'  fees,  incurred in  connection  with the  proceeding.  In
addition,  a  corporation  may  indemnify  or advance  expenses  to an  officer,
employee or agent who is not a director to a greater  extent than  permitted for
indemnification of directors,  if consistent with law and if provided for by its
articles of incorporation,  bylaws,  resolution of its shareholders or directors
or in a  contract.  The  provision  of  indemnification  to  persons  other than
directors  is subject to such  limitations  as may be imposed on general  public
policy grounds.

     In addition to the foregoing,  unless hereafter limited by the Registrant's
articles of incorporation, a court, upon petition by an officer or director, may
order the Registrant to indemnify such officer or director  against  liabilities
arising in connection with any  proceeding.  A court may order the Registrant to
provide such indemnification,  whether or not the applicable standard of conduct
described   above  was  met  by  the   officer  or   director.   To  order  such
indemnification  the court  must  determine  that the  petitioner  is fairly and
reasonably entitled to such indemnification in light of the circumstances.  With
respect  to  liabilities  arising  as a result of  proceedings  on behalf of the
Registrant,  a court may only require that a petitioner be indemnified as to the
reasonable expenses incurred.

     Indemnification  in connection  with a proceeding by or in the right of the
Registrant in which the director is successful is permitted only with respect to
reasonable  expenses  incurred in connection with the defense.  In such actions,
the person to be indemnified must have acted in good faith, in a manner believed
to have been in the  Registrant's  best interest and must not have been adjudged
liable for negligence or misconduct.  Indemnification is otherwise prohibited in
connection  with a  proceeding  brought on behalf of the  Registrant  in which a
director  is  adjudged  liable  to the  Registrant,  or in  connection  with any
proceeding  charging  improper  personal  benefit to the  director  in which the
director is adjudged liable for receipt of an improper personal benefit.

     Colorado law  authorizes  the  Registrant  to  reimburse or pay  reasonable
expenses incurred by a director, officer, employee or agent in connection with a
proceeding,  in advance of a final  disposition of the matter.  Such advances of
expenses  are  permitted  if the person  furnishes  to the  Registrant a written
statement of his belief that he met the applicable  standard of conduct required
to permit such  indemnification.  The person seeking such expense  advances must
also provide the Registrant  with a written  agreement to repay such advances if
it is determined the applicable standard of conduct was not met. A determination
must also be made  that the facts  known to the  Registrant  would not  preclude
indemnification.

     The statutory section cited above further specifies that any provisions for
indemnification  of or advances for expenses to directors which may be contained
in the  Registrant's  Articles  of  Incorporation,  Bylaws,  resolutions  of its
shareholders  or directors,  or in a contract  (except for  insurance  policies)
shall be valid  only to the  extent  such  provisions  are  consistent  with the
Colorado  statutes and any  limitations  upon  indemnification  set forth in the
Articles of Incorporation.


                                       23

<PAGE>



     The statutory provision cited above also grants the power to the Registrant
to purchase and maintain insurance policies which protect any director, officer,
employee,  fiduciary or agent against any liability asserted against or incurred
by them in such  capacity  arising out of his status as such.  Such policies may
provide for indemnification  whether or not the corporation would otherwise have
the power to  provide  for it. No such  policies  providing  protection  against
liabilities  imposed  under  the  securities  laws  have  been  obtained  by the
Registrant.  The registration rights agreements dated July 31, 1998, and October
31,  1997   between  the   Registrant   and  Tail  Wind.,   provides  for  cross
indemnification  by the  Registrant  and Tail Wind,  in  certain  circumstances,
including for certain securities laws violations.

Item 16. Exhibits and Financial Statement Schedules.
         -------------------------------------------

     (a) Exhibits.  The following is a complete list of exhibits filed as a part
of this Registration Statement, which Exhibits are incorporated herein.

Number            Description
- ------            -----------

4.1*      Form  of  Convertible  Debenture,  incorporated  by  reference  to the
          Registrant's  Current Report on Form 8-K reporting an event of October
          23, 1997 (Commission file no. 0-8632)

4.2*      Common  Stock  Purchase  Warrant  issued to The Tail Wind Fund,  Ltd.,
          incorporated by reference to the  Registrant's  Current Report on Form
          8-K  reporting  an event of  October  23,  1997  (Commission  file no.
          0-8632)

4.3*      Form  of  Convertible  Debenture,  incorporated  by  reference  to the
          Registrant's Current Report on Form 8-K reporting an event of July 31,
          1998 (Commission file no. 0-8632)

4.4*      Common  Stock  Purchase  Warrant  issued to The Tail Wind Fund,  Ltd.,
          incorporated by reference to the  Registrant's  Current Report on Form
          8-K reporting an event of July 31, 1998 (Commission file no. 0-8632)

5.1**     Opinion and Consent of Norton * Lidstone, LLC.

10.1*     Purchase  Agreement between Medical  Dynamics,  Inc. and The Tail Wind
          Fund,  Ltd.,  incorporated  by reference to the  Registrant's  Current
          Report on Form 8-K reporting an event of October 23, 1997  (Commission
          file no. 0- 8632)

10.2*     Registration Rights Agreement between Medical Dynamics,  Inc., and The
          Tail Wind Fund,  Ltd.,  incorporated by reference to the  Registrant's
          Current  Report on form 8-K  reporting  an event of October  23,  1997
          (Commission file no. 0-8632)


                                       24

<PAGE>



10.3*     Purchase  Agreement between Medical  Dynamics,  Inc. and The Tail Wind
          Fund,  Ltd.,  incorporated  by reference to the  Registrant's  Current
          Report on Form 8-K  reporting  an event of July 31,  1998  (Commission
          file no. 0-8632)

10.4*     Registration Rights Agreement between Medical Dynamics,  Inc., and The
          Tail Wind Fund,  Ltd.,  incorporated by reference to the  Registrant's
          Current  Report  on form 8-K  reporting  an  event  of July  31,  1998
          (Commission file no. 0-8632)

23.1      Consent of Norton * Lidstone, LLC. (See Exhibit 5.1)

23.2      Consent of Hein + Associates LLP.

- ----------

*         Previously filed.

**        To be filed by amendment.


Item 17. Undertakings.
- ----------------------

     The  undersigned  Registrant  hereby  undertakes:  (1) to file,  during any
period in which  offers or sales are being made, a  post-effective  amendment to
the Registration  Statement:  (i) to include any prospectus  required by Section
10(a)(3) of the  Securities  Act of 1933;  (ii) to reflect in the prospectus any
facts or events arising after the effective date of the  Registration  Statement
(or the most recent post-effective amendment thereof) which,  individually or in
the aggregate,  represent a fundamental  change in the  information set forth in
the Registration  Statement;  and (iii) to include any material information with
respect to the plan of distribution not previously disclosed in the Registration
Statement  or any  material  change  to  such  information  in the  Registration
Statement, including (but not limited to) any addition or deletion of a managing
underwriter;  (2) that for the purpose of  determining  any liability  under the
Securities Act of 1933, each such post-effective amendment shall be deemed to be
a new registration statement relating to the securities offered therein, and the
offering of such  securities at that time shall be deemed to be the initial bona
fide  offering  thereof;  and (3) to  remove  from  registration  by  means of a
post-effective  amendment any of the securities  being  registered  which remain
unsold at the termination of the offering.

     The  undersigned   Registrant  hereby  undertakes  that,  for  purposes  of
determining  any liability  under the Securities Act of 1933, each filing of the
Registrant's  Annual  Report  pursuant to section  13(a) or section 15(d) of the
Securities  Exchange  Act of 1934  (and,  where  applicable,  each  filing of an
employee  benefit  plan's  annual  report  pursuant  to  section  15(d)  of  the
Securities  Exchange  Act of 1934)  that is  incorporated  by  reference  in the
registration  statement  shall  be  deemed  to be a new  registration  statement
relating to the securities offered therein,  and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

                                       25

<PAGE>


     The  undersigned  Registrant  hereby  undertakes  to deliver or cause to be
delivered with the prospectus,  to each person to whom the prospectus is sent or
given,  the latest annual  report to security  holders that is  incorporated  by
reference  in  the  prospectus  and  furnished   pursuant  to  and  meeting  the
requirements  of Rule 14a-3 or Rule 14c-3 under the  Securities  Exchange Act of
1934;  and,  where  interim  financial  information  required to be presented by
Article 3 of Regulation S-X are not set forth in the prospectus,  to deliver, or
cause to be delivered,  to each person to whom the  prospectus is sent or given,
the latest  quarterly  report that is specifically  incorporated by reference in
the prospectus to provide such interim financial information.

     Insofar as indemnification for liabilities arising under the Securities Act
of 1933 may be permitted to directors,  officers and controlling  persons of the
registrant pursuant to the Registrant's Articles of Incorporation, or otherwise,
the  Registrant  has been  advised  that in the  opinion of the  Securities  and
Exchange  Commission such  indemnification is against public policy as expressed
in the Act and is,  therefore,  unenforceable.  In the  event  that a claim  for
indemnification  against  such  liabilities  (other  than  the  payment  by  the
Registrant of expenses  incurred or paid by a director,  officer or  controlling
person of the  Registrant  in the  successful  defense  of any  action,  suit or
proceeding)  is  asserted by such  director,  officer or  controlling  person in
connection with the securities being registered,  the Registrant will, unless in
the opinion of its counsel the matter has been settled by controlling precedent,
submit  to a  court  of  appropriate  jurisdiction  the  question  whether  such
indemnification  by it is against public policy as expressed in the Act and will
be governed by the final adjudication of such issue.


                                       26

<PAGE>




                                    SIGNATURE
                                    ---------

     Pursuant to the  requirements of the Securities Act of 1933, the Registrant
certifies  that it has  reasonable  grounds to believe  that it meets all of the
requirements  for  filing  on Form S-3 and has  duly  caused  this  Registration
Statement  to be  signed  on its  behalf  by  the  undersigned,  thereunto  duly
authorized, in Englewood,  Arapahoe County, State of Colorado, on September ___,
1998.

                                               MEDICAL DYNAMICS, INC.

                                               By: /s/ Van A. Horsley
                                                  ------------------------------
                                                  Van A. Horsley, President

     Pursuant  to  the   requirements  of  the  Securities  Act  of  1933,  this
Registration  Statement  has  been  signed  by  the  following  persons  in  the
capacities and on the dates indicated.

Signatures                      Title                        Date
- ----------                      -----                        ----

/s/ Edwin L. Adair              Director                     September 21, 1998
- ----------------------
Edwin L. Adair, M.D.

/s/ Pat Horsley Adair           Director                     September 21, 1998
- ----------------------
Pat Horsley Adair

/s/ I. Dean Bayne               Director                     September 21, 1998
- ----------------------
I. Dean Bayne, M.D.

/s/ Van A. Horsley              Director,                    September 21, 1998
- ----------------------          Principal Financial Officer,
Van A. Horsley                  Principal  Accounting Officer
                                and Chief Executive Officer            
                                            
/s/ Leroy Bilanich              Director                     September 21, 1998
- ----------------------  
Leroy Bilanich

/s/ Daniel L. Richmond          Director                     September 21, 1998
- ----------------------
Daniel L. Richmond

/s/ Chae U. Kim                 Director                     September 21, 1998
- ----------------------
Chae U. Kim


                                       27
<PAGE>


     THIS WARRANT HAS NOT BEEN  REGISTERED  UNDER THE SECURITIES ACT OF 1933, AS
AMENDED,  AND MAY NOT BE  SOLD,  TRANSFERRED,  PLEDGED  OR  HYPOTHECATED  IN THE
ABSENCE OF A REGISTRATION  STATEMENT  COVERING THIS WARRANT UNDER SAID ACT OR AN
EXEMPTION FROM REGISTRATION UNDER SAID ACT.

     VOID AFTER 5:00 P.M. MOUNTAIN TIME ON JULY __, 2003 ("EXPIRATION DATE").


                             MEDICAL DYNAMICS, INC.

                      WARRANT TO PURCHASE 110,000 SHARES OF
                     COMMON STOCK, PAR VALUE $.001 PER SHARE

     This is to certify  that,  for VALUE  RECEIVED,  The Tail Wind  Fund,  Ltd.
("Warrantholder"),  is entitled to purchase,  subject to the  provisions of this
Warrant, from Medical Dynamics, Inc., a Colorado corporation ("Company"),  up to
110,000  shares of the Company's  Common  Stock,  par value $.001 per share (the
"Common  Stock"),  at any time not later than 5:00 P.M.,  Mountain  time, on the
Expiration  Date,  at an exercise  price per share equal to $2.58 (the  "Warrant
Price").  The number of shares of Common Stock purchasable upon exercise of this
Warrant  (the  "Warrant  Shares")  and the  Warrant  Price  shall be  subject to
adjustment from time to time as described herein.

     Section 1. Registration.  The Company shall maintain books for the transfer
and registration of the Warrant.  Upon the initial issuance of the Warrant,  the
Company shall issue and register the Warrant in the name of the Warrantholder.
                   
     Section 2. Transfers.  As provided  herein,  the Warrant may be transferred
only pursuant to a  registration  statement  filed under the  Securities  Act of
1933,  as  amended   ("Securities   Act")  or  an  exemption  from  registration
thereunder.  Subject to such restrictions,  the Company shall transfer from time
to time,  the Warrant,  upon the books to be  maintained by the Company for that
purpose, upon surrender thereof for transfer properly endorsed or accompanied by
appropriate  instructions for transfer upon any such transfer, and a new Warrant
shall be issued to the transferee and the surrendered  Warrant shall be canceled
by the Company.

     Section 3.  Exercise  of Warrant.  Subject to the  provisions  hereof,  the
Warrantholder  may  exercise  the  Warrant  in whole or in part at any time upon
surrender of the Warrant,  together with  delivery of the duly executed  Warrant
exercise form attached hereto (the "Exercise Agreement"),  to the Company during
normal business hours on any business day at the Company's  principal  executive
offices (or such other  office or agency of the Company as it may  designate  by
notice to the holder  hereof),  and upon (i) payment to the Company in cash,  by
certified  or  official  bank check or by wire  transfer  for the account of the
Company of the Warrant  Price for the Warrant  Shares  specified in the Exercise
Agreement or (ii) delivery to the Company of a written  notice of an election to
effect a "Cashless Exercise" (as defined below) for the Warrant Shares specified
in the Exercise Agreement. The Warrant Shares so purchased shall be deemed to be
issued to the holder  hereof or such holder's  designee,  as the record owner of
such shares, as of the close of business on the date on which this Warrant shall

<PAGE>


have been surrendered (or evidence of loss, theft or destruction  thereof),  the
completed Exercise  Agreement shall have been delivered,  and payment shall have
been made for such  shares  as set forth  above.  Certificates  for the  Warrant
Shares so purchased,  representing  the aggregate  number of shares specified in
the  Exercise  Agreement,  shall be  delivered  to the  holder  hereof  within a
reasonable  time, not exceeding two (2) business days,  after this Warrant shall
have  been  so  exercised.  The  certificates  so  delivered  shall  be in  such
denominations  as may be requested by the holder  hereof and shall be registered
in the name of such  holder or such  other name as shall be  designated  by such
holder.  If this Warrant shall have been  exercised only in part,  then,  unless
this  Warrant has expired,  the Company  shall,  at its expense,  at the time of
delivery of such certificates,  deliver to the holder a new Warrant representing
the number of shares with respect to which this Warrant shall not then have been
exercised.

     To effect a Cashless Exercise,  the holder shall submit to the Company with
the  Exercise  Agreement,  written  notice of the  holder's  intention to do so,
including  a  calculation  of the number of shares of Common  Stock to be issued
upon  such  exercise  in  accordance  with the terms  hereof.  In the event of a
Cashless Exercise, in lieu of paying the Warrant Price in cash, the holder shall
surrender  this Warrant for that number of shares of Common Stock  determined by
multiplying the number of Warrant Shares to which it would otherwise be entitled
by a fraction,  the numerator of which shall be the difference  between the then
current Market Price per share of the Common Stock and the Exercise  Price,  and
the denominator of which shall be the then current Market Price per share of the
Common Stock. For this purpose,  the "Market Price" of the Common Stock shall be
the closing  price of the Common  Stock on the trading day first  preceding  the
date of the Exercise Agreement.

     To the extent  that any Warrant  Shares  remain  outstanding  at 5:01 P.M.,
Mountain  time  on  July  __,  2003,  such  outstanding   Warrant  Shares  shall
automatically  expire and be of no further  force and  effect,  and the  holders
thereof shall have no further right to exercise or transfer the same.

     Section 4. Compliance with the Securities Act of 1933. Neither this Warrant
nor the Common Stock issued upon exercise  hereof nor any other security  issued
or  issuable  upon  exercise  of this  Warrant  may be offered or sold except as
provided in this agreement and in conformity with the Securities Act of 1933, as
amended,  and then only  against  receipt of an agreement of such person to whom
such offer of sale is made to comply with the  provisions of this Section 4 with
respect to any resale or other  disposition  of such  security.  The Company may
cause the legend set forth on the first page of this  Warrant to be set forth on
each Warrant or similar legend on any security  issued or issuable upon exercise
of this Warrant, unless counsel for the Company is of the opinion as to any such
security that such legend is unnecessary.

                                       2
<PAGE>


     Section 5.  Payment of Taxes.  The Company will pay any  documentary  stamp
taxes  attributable to the initial  issuance of Warrant Shares issuable upon the
exercise  of the  Warrant;  provided,  however,  that the  Company  shall not be
required to pay any tax or taxes which may be payable in respect of any transfer
involved in the issue or delivery of any  certificates  for Warrant  Shares in a
name other than that of the registered holder of the Warrant in respect of which
such shares are issued,  and in such case,  the Company shall not be required to
issue or deliver any  certificate  for Warrant  Shares or any Warrant  until the
person requesting the same has paid to the Company the amount of such tax or has
established  to the  Company's  satisfaction  that such tax has been  paid.  The
holder shall be responsible  for income taxes due under federal or state law, if
any such tax is due.

     Section 6.  Mutilated  or Missing  Warrants.  In case the Warrant  shall be
mutilated,  lost, stolen, or destroyed,  the Company shall issue in exchange and
substitution of and upon  cancellation of the mutilated  Warrant,  or in lieu of
and  substitution  for the Warrant lost,  stolen or destroyed,  a new Warrant of
like tenor and for the  purchase  of a like number of Warrant  Shares,  but only
upon receipt of evidence  reasonably  satisfactory  to the Company of such loss,
theft or  destruction  of the  Warrant,  and with  respect to a lost,  stolen or
destroyed Warrant, reasonable indemnity or bond, if requested by the Company.

     Section 7. Reservation of Common Stock.  The Company hereby  represents and
warrants that there have been reserved,  and the Company shall at all applicable
times keep reserved,  out of the authorized and unissued  Common Stock, a number
of shares  sufficient  to provide  for the  exercise  of the rights of  purchase
represented by the Warrant,  and the Continental Stock Transfer & Trust Company,
the transfer agent for the Common Stock ("Transfer Agent"), and every subsequent
transfer  agent for the Common  Stock or other shares of the  Company's  capital
stock issuable upon the exercise of any of the right of purchase aforesaid shall
be  irrevocably  authorized  and directed at all times to reserve such number of
authorized  and unissued  shares of Common Stock as shall be requisite  for such
purpose.  The Company agrees that all Warrant Shares issued upon exercise of the
Warrant shall be, at the time of delivery of the  certificates  for such Warrant
Shares, duly authorized, validly issued, fully paid and non-assessable shares of
Common  Stock of the  Company.  The Company  will keep a conformed  copy of this
Warrant on file with the Transfer Agent and with every subsequent transfer agent
for the Common Stock or other shares of the  Company's  capital  stock  issuable
upon the  exercise of the rights of purchase  represented  by the  Warrant.  The
Company  will supply  from time to time the  Transfer  Agent with duly  executed
stock certificates required to honor the outstanding Warrant.

     Section 8. Warrant  Price.  The Warrant  Price,  subject to  adjustment  as
provided in Section 9, shall, if payment is made in cash or by certified  check,
be payable in lawful money of the United States of America.
                                  
                                       3
<PAGE>


     Section 9.  Adjustments.  Subject and  pursuant to the  provisions  of this
Section  9, the  Warrant  Price and  number of  Warrant  Shares  subject to this
Warrant  shall  be  subject  to  adjustment  from  time  to  time  as set  forth
hereinafter.  If the adjustment  provisions contained in this Section 9 are less
favorable to the holders of this Warrant than adjustment provisions available to
any other holder (the "Other  Holder") of convertible  securities of the Company
or  warrants,  options or similar  rights  exercisable  for Common  Stock of the
Company with respect to such securities  ("Other  Rights") are to any such Other
Holder, this Warrant shall be immediately and automatically amended, without the
requirement of any action by the holder or the Company, to provide the holder of
this Warrant with adjustment rights at least as favorable as such Other Rights.

          (a) If the  Company  shall at any time or from time to time  while the
Warrant is  outstanding,  pay a dividend  or make a  distribution  on its Common
Stock in shares of Common  Stock,  subdivide  its  outstanding  shares of Common
Stock into a greater number of shares or combine its  outstanding  shares into a
smaller number of shares or issue by  reclassification of its outstanding shares
of  Common  Stock  any  shares  of  its  capital  stock   (including   any  such
reclassification  in  connection  with a  consolidation  or  merger in which the
Company  is the  continuing  corporation),  then the  number of  Warrant  Shares
purchasable  upon  exercise  of the  Warrant  and the  Warrant  Price in  effect
immediately  prior to the date upon which such change  shall  become  effective,
shall be adjusted by the Company so that the Warrantholder thereafter exercising
the Warrant shall be entitled to receive the number of shares of Common Stock or
other capital stock which the  Warrantholder  would have received if the Warrant
had been exercised  immediately  prior to such event.  Such adjustment  shall be
made successively whenever any event listed above shall occur.

          (b) If any  capital  reorganization,  reclassification  of the capital
stock of the  Company,  consolidation  or merger  of the  Company  with  another
corporation,  or sale, transfer or other disposition of all or substantially all
of the Company's properties to another corporation shall be effected, then, as a
condition of such reorganization, reclassification, consolidation, merger, sale,
transfer  or other  disposition,  lawful and  adequate  provision  shall be made
whereby  each  Warrantholder  shall  thereafter  have the right to purchase  and
receive upon the basis and upon the terms and conditions herein specified and in
lieu of the Warrant Shares immediately theretofore issuable upon exercise of the
Warrant,  such shares of stock,  securities  or properties as may be issuable or
payable  with  respect to or in  exchange  for a number of  outstanding  Warrant
Shares equal to the number of Warrant Shares  immediately  theretofore  issuable
upon  exercise  of  the  Warrant,  had  such  reorganization,  reclassification,
consolidation,  merger, sale, transfer or other disposition not taken place, and
in any such case appropriate  provision shall be made with respect to the rights
and  interests  of each  Warrantholder  to the end  that the  provisions  hereof
(including, without limitations,  provision for adjustment of the Warrant Price)

                                       4
<PAGE>


shall  thereafter be applicable,  as nearly  equivalent as may be practicable in
relation to any shares of stock, securities or properties thereafter deliverable
upon the exercise thereof.  The Company shall not effect any such consolidation,
merger,  sale,  transfer or other disposition  unless prior to or simultaneously
with the  consummation  thereof  the  successor  corporation  (if other than the
Company)  resulting  from  such  consolidation  or  merger,  or the  corporation
purchasing or otherwise  acquiring such assets or other appropriate  corporation
or entity shall  assume,  by written  instrument  executed and  delivered to the
Company,  the  obligation to deliver to the holder of the Warrant such shares of
stock,  securities  or assets as, in accordance  with the foregoing  provisions,
such holder may be entitled to  purchase  and the other  obligations  under this
Warrant.

          The above  provisions of this paragraph (b) shall  similarly  apply to
successive reorganizations,  reclassifications,  consolidations, mergers, sales,
transfers or other dispositions.

          (c) In case the  Company  shall fix a record  date for the making of a
distribution  to all holders of Common Stock  (including  any such  distribution
made in connection  with a  consolidation  or merger in which the Company is the
continuing  corporation) of evidences of indebtedness or assets (other than cash
dividends or cash distributions  payable out of consolidated  earnings or earned
surplus  or  dividends  or  distributions  referred  to  in  Section  9(a)),  or
subscription  rights or warrants,  the Warrant  Price to be in effect after such
record date shall be  determined  by  multiplying  the  Warrant  Price in effect
immediately  prior to such  record date by a fraction,  the  numerator  of which
shall be the total number of shares of Common Stock  outstanding  multiplied  by
the Market  Price per share of Common Stock (as  determined  pursuant to Section
3),  less the  fair  market  value  (as  determined  by the  Company's  Board of
Directors  in good  faith)  of said  assets  or  evidences  of  indebtedness  so
distributed,  or of such subscription rights or warrants, and the denominator of
which shall be the total number of shares of Common Stock outstanding multiplied
by such current Market Price per share of Common Stock. Such adjustment shall be
made successively whenever such a record date is fixed.

          (d) If the  Company  shall at any time or from time to time  after the
date of issuance  hereof issue or sell in a financing  transaction  (which shall
not  include  any sales or  issuances  of  Common  Stock  after the date  hereof
pursuant  to  contractual  obligations  in effect on the date  hereof),  (A) any
shares of Common Stock for a consideration per share less than the lesser of (i)
the Market  Price (as defined  above) on the date of such  issuance and (ii) the
Warrant  Price,  or (B) any securities  convertible  into shares of Common Stock
("Convertible  Securities")  for which the  conversion or exercise price (which,
for the purposes of this Section 9(d),  shall be the total  obtained by dividing
(x) the total amount received by the Company as  consideration  for the issuance
of such  Convertible  Securities  plus any  amount  payable  to the  Company  on
conversion  or  exercise  thereof,  by (y) the number of shares of Common  Stock
issuable upon the conversion or exercise thereof) is less than the lesser of (i)
the Market  Price (as defined  above) on the date of such  issuance and (ii) the
Warrant Price,  then the Warrant Price shall be reduced to a price equal to 120%
of  such  per  share  consideration,  or  conversion  or  exercise  price.  Such
adjustments shall be made successively whenever such sales are made.

                                       5
<PAGE>


          (e) An adjustment shall become effective  immediately after the record
date in the case of each  dividend or  distribution  and  immediately  after the
effective date of each other event which requires an adjustment.

          (f) In the event that, as a result of an  adjustment  made pursuant to
Section  9(a),  the holder of the Warrant  shall become  entitled to receive any
shares of capital stock of the Company  other than shares of Common  Stock,  the
number of such other shares so receivable  upon exercise of the Warrant shall be
subject  thereafter to adjustment  from time to time in a manner and on terms as
nearly  equivalent as practicable to the provisions  with respect to the Warrant
Shares contained in this Warrant.

          (g)  Shares of Common  Stock  owned by or held for the  account of the
Company or any majority-owned subsidiary shall not be deemed outstanding for the
purpose of any computation under this Agreement.

     Section 10. Fractional Interest. The Company shall not be required to issue
fractions of Warrant Shares upon the exercise of the Warrant. If any fraction of
a Warrant Share would,  except for the  provisions of this Section,  be issuable
upon the exercise of the Warrant (or specified  portions  thereof),  the Company
shall  purchase such fraction for an amount in cash equal to the current  market
value of such fraction based upon the current Market Price (determined  pursuant
to Section 3) of a Warrant Share. All  calculations  under this Section 10 shall
be made to the nearest cent or to the nearest  one-hundredth  of a share, as the
case may be.

     Section 11.  Benefits.  Nothing in this Warrant  shall be construed to give
any person,  firm or corporation  (other than the Company and the Warrantholder)
any legal or equitable right, remedy or claim, it being agreed that this Warrant
shall  be  for  the  sole  and   exclusive   benefit  of  the  Company  and  the
Warrantholder.

     Section  12.  Notices to  Warrantholder.  Upon the  happening  of any event
requiring an adjustment of the Warrant Price,  the Company shall  forthwith give
written  notice  thereof to the  Warrantholder  at the address  appearing in the
records of the  Company,  stating the  adjusted  Warrant  Price and the adjusted
number of  Warrant  Shares  resulting  from  such  event  and  setting  forth in
reasonable  detail  the  method of  calculation  and the facts  upon  which such
calculation is based.  The  certificate of the Company's  independent  certified
public  accountants  shall be  conclusive  evidence  of the  correctness  of any
computation  made,  absent  manifest  error.  Failure to give such notice to the
Warrantholder or any defect therein shall not affect the legality or validity of
the subject adjustment.

     Section 13. Identity of Transfer  Agent.  The Transfer Agent for the Common
Stock is Continental Stock Transfer & Trust Company,  2 Broadway,  New York, New
York 10004.  Forthwith upon the appointment of any subsequent transfer agent for
the Common Stock or other shares of the Company's  capital  stock  issuable upon
the exercise of the rights of purchase  represented by the Warrant,  the Company
will mail to the Warrantholder a statement setting forth the name and address of
such transfer agent.

                                       6
<PAGE>


     Section 14. Notices.  Any notice pursuant hereto to be given or made by the
Warrantholder  to or on the Company shall be sufficiently  given or made if sent
by certified  mail,  return receipt  requested,  postage  prepaid,  addressed as
follows:
                                

                  Medical Dynamics, Inc.
                  99 Inverness Drive East
                  Englewood, CO  80112
                  Attn:  Van A. Horsley
                  Telephone:  303/790-2990
                  Facsimile:   303/799-1378

or such other  address as the  Company  may  specify in writing by notice to the
Warrantholder complying as to delivery with the terms of this Section 14.

     Any notice  pursuant hereto to be given or made by the Company to or on the
Warrantholder  shall be  sufficiently  given or made if sent by certified  mail,
return receipt requested, postage prepaid, to the address set forth on the books
of the  Company or, as to each of the  Company  and the  Warrantholder,  at such
other  address as shall be  designated  by such  party by written  notice to the
other party complying as to delivery with the terms of this Section 14. All such
notices,  requests,  demands,  directions and other  communications  shall, when
mailed be effective when deposited in the mails addressed as aforesaid.

     Section 15.  Registration  Rights.  The initial  holder of this  Warrant is
entitled to the benefit of certain registration rights in respect of the Warrant
Shares as provided in the Registration Rights Agreement dated effective July __,
1998.
                                  
     Section 16.  Successors.  All the covenants and provisions hereof by or for
the  benefit  of the  Investor  shall  bind  and  inure  to the  benefit  of its
respective successors and assigns hereunder.
                                   
     Section 17.  Governing  Law.  This Warrant shall be deemed to be a contract
made  under  the laws of the State of  Colorado  and for all  purposes  shall be
construed in accordance with the laws of said State.
                                   
                                       7

<PAGE>



     IN WITNESS WHEREOF,  the parties hereto have caused this Warrant to be duly
executed, as of the day and year first above written.

                                           MEDICAL DYNAMICS, INC.



                                           By:__________________________________
                                                    Name:
                                                    Title:



Attest:


________________________________


                                       8

<PAGE>



                             MEDICAL DYNAMICS, INC.
                              WARRANT EXERCISE FORM



MEDICAL DYNAMICS, INC.
99 Iverness Drive East
Englewood, CO  80112

     This  undersigned  hereby  irrevocably  elects  to  exercise  the  right of
purchase  represented  by the within  Warrant  ("Warrant")  for, and to purchase
thereunder by (CHECK AS  APPLICABLE) [] payment by cash or certified  check;  []
conversion  of the within  Warrant by surrender of the Warrant,  _______________
shares of Common Stock* ("Warrant  Shares")  provided for therein,  and requests
that certificates for the Warrant Shares be issued as follows:

                           --------------------------------
                           Name

                           --------------------------------
                           Address
                           --------------------------------

                           --------------------------------

                           --------------------------------
                           Federal Tax Identification No.
                           or Social Security No.

and,  if the  number  of  Warrant  Shares  shall not be all the  Warrant  Shares
purchasable upon exercise of the Warrant,  that a new Warrant for the balance of
the Warrant Shares purchasable upon exercise of the Warrant be registered in the
name of the undersigned  Warrantholder  or the  undersigned's  Assignee as below
indicated and delivered to the address stated below.




* NOTE:   If  conversion  of the Warrant is made by surrender of the Warrant and
          the number of shares indicated exceeds the maximum number of shares to
          which a holder is entitled, the Company will issue such maximum number
          of shares.


<PAGE>


Dated:___________________, ____

                                  Signature:
                                            ------------------------------

                                            ------------------------------
                                            Name (please print)
                                            ------------------------------
                                            Address

                                            ------------------------------


                                            ------------------------------
                                            Federal Identification or
                                            Social Security No.


                                      Note: The above signature must correspond
                                            with the name of the registered
                                            holder as written on the first page
                                            of the Warrant in every particular,
                                            without alteration or enlargement 
                                            or any change whatever, unless the
                                            Warrant has been assigned.


<PAGE>


                               PURCHASE AGREEMENT
                               ------------------

     THIS PURCHASE  AGREEMENT  ("Agreement") is made as of the 31st day of July,
1998  by and  between  Medical  Dynamics,  Inc.,  a  Colorado  corporation  (the
"Company"),  and The Tail Wind Fund,  Ltd.,  a British  Virgin  Islands  limited
liability company (the "Investor").

     In  consideration of the mutual promises made herein and for other good and
valuable  consideration,   the  receipt  and  sufficiency  of  which  is  hereby
acknowledged, the parties hereto agree as follows:

     1.  Definitions.  The following  terms, as used herein,  have the following
meanings:

          1.1 "Affiliate"  means,  with respect to any person,  any other person
which  directly or indirectly  controls,  is  controlled  by, or is under common
control with, such person.
                           
          1.2  "Agreements"  means this  Agreement and the  Registration  Rights
Agreement.

          1.3 "Closing" means the consummation of the transactions  contemplated
by this Agreement, which shall occur as provided herein.
                            
          1.4 "Common Stock" means the Common Stock,  par value $.001 per share,
of the Company.
                            
          1.5 "Control" means the possession , direct or indirect,  of the power
to direct or cause the  direction  of the  management  and policies of a person,
whether through the ownership of voting securities, by contract or otherwise.
                          
          1.6 "Debenture" means the Convertible Debenture issued to the Investor
in the form attached hereto as Exhibit A.
                           
          1.7 "Material  Adverse Effect" means a material  adverse effect on the
(i) condition (financial or otherwise),  business, assets, results of operations
or prospects of the Company and its subsidiaries, taken as a whole; (ii) ability
of the Company to perform  any of its  material  obligations  under the terms of
this Agreement;  or (iii) rights and remedies of the Investor under the terms of
this Agreement.

          1.8 "Person" means an  individual,  corporation,  partnership,  trust,
business  trust,   association,   joint  stock  company,  joint  venture,  pool,
syndicate,  sole  proprietorship,   unincorporated  organization,   governmental
authority or any other form of entity not specifically listed herein.

          1.9  "Registration  Rights  Agreement" means the  Registration  Rights
Agreement  relating to the Common Stock  issuable  pursuant to the conversion of
the Debentures and the exercise of the Warrants,  in the form attached hereto as
Exhibit B, to be entered into as of the date hereof.
                          

<PAGE>


          1.10 "SEC" means the Securities and Exchange Commission.

          1.11 "SEC Filings" has the meaning set forth in Section 4.5.

          1.12 "Securities" means the Debentures, the Common Stock issuable upon
the  conversion  of, or payable  as accrued  interest  on, the  Debentures,  the
Warrants and the Common Stock issuable upon the exercise of Warrants.
                           
          1.13 "1933 Act" means the Securities Act of 1933, as amended,  and the
rules and regulations promulgated thereunder.
                           
          1.14 "1934 Act" means the Securities Exchange Act of 1934, as amended,
and the rules and regulations promulgated thereunder.
                        
          1.15 "Warrants" means (a) the "First Investment Warrant," which is the
Warrant  issued to the  Investor on the First  Closing Date to purchase up to an
aggregate  of  110,000  shares  of Common  Stock at the  exercise  price  stated
therein,  the form of which is attached  hereto as Exhibit C and (b) the "Second
Investment  Warrant,"  which is the Warrant to be issued to the  Investor on the
Second  Closing Date to purchase up to an  aggregate of 40,000  shares of Common
Stock at the exercise price stated therein, the form of which is attached hereto
as Exhibit D.

     2. Purchase and Sale of Debenture and Issuance of Warrant.

          2.1 First  Investment.  Subject  to the terms and  conditions  of this
Agreement,  and in  reliance on the  representations  and  warranties  contained
herein, the Investor hereby purchases and the Company hereby sells and issues to
the Investor (a) the  Debenture at an aggregate  purchase  price of  $1,100,000,
issued and delivered  concurrently  herewith in eleven equal  Debenture forms of
$100,000  face  amount  each and (b) the First  Investment  Warrant  issued  and
delivered concurrently herewith (the "First Investment").

          2.2 Second  Investment.  Subject to the terms and  conditions  of this
Agreement,  and in  reliance on the  representations  and  warranties  contained
herein,  upon the  satisfaction  of the conditions set forth below, on or before
December 31, 1998,  the Investor  shall  purchase and the Company shall sell and
issue to the Investor (a) Debentures at an aggregate purchase price of $400,000,
which shall be issued and delivered  against receipt of funds as contemplated by
Section 3, below, in four equal Debenture forms of $100,000 face amount each and
(b) the Second Investment Warrant (the "Second  Investment").  The obligation of
the Investor to make the Second  Investment shall be subject to the satisfaction
of the following conditions:

                                       2
<PAGE>


               (a) The  average  closing  bid price of the Common  Stock for the
month of November 1998 shall be $2.10 or above;

               (b) The effective date of the registration statement contemplated
by the Registration Rights Agreement is within 120 days of the date hereof;

               (c) The  registration  statement  on Form S-3  (Registration  No.
333-42631) is not subject to any suspension of effectiveness and has not been so
subject for a period in excess of ten (10) days during the period  commencing on
the date hereof and ending on November 30, 1998;

               (d) The  representations  and  warranties of the Company shall be
true and correct as of the date of the Second Investment;

               (e) The trading in the Common Stock shall not have been suspended
by the SEC or the Nasdaq Stock Market,  and the Common Stock shall not have been
delisted from the Nasdaq Stock Market;

               (f) The Company  shall have  delivered to the Investor an opinion
of Company's  counsel in form and substance  similar to the opinion delivered in
connection with the First Investment.

          2.3 Closing Dates and Closings.  The date and time of the issuance and
sale of the  Debentures  and Warrants  pursuant to this  Agreement (the "Closing
Dates") shall be (i) in the case of the First  Investment,  the date hereof (the
"First Closing Date"); and (ii) in the case of the Second  Investment,  December
31, 1998 or such earlier  date in the month of December  1998 as the parties may
mutually agree (the "Second Closing  Date").  On each Closing Date, the Investor
shall  cause the  purchase  price for the  Debentures  being  purchased  on that
Closing Date to be paid into escrow as provided in the Escrow Agreement attached
hereto as Exhibit E, and the  Company  shall  cause the  Debentures  and Warrant
subscribed  for hereby with respect to that Closing Date to be executed,  issued
and  delivered  to the Escrow  Agent as  provided in the Escrow  Agreement.  The
parties  expressly  acknowledge  and agree that on or before the Second  Closing
Date, the Company also shall cause to be delivered to the Investor a certificate
of an officer of the Company to the effect that the conditions  precedent to the
Second  Investment  (as set forth in Section 2.2 above) have been  satisfied and
that the representations and warranties of the Company set forth herein are true
and  correct  as of such  date  and will be true and  correct  as of the  Second
Closing Date.

     3. Payment of Purchase  Price.  The Investor shall cause the purchase price
to be paid in full by wire transfer to the Escrow Agent pursuant to the terms of
the Escrow Agreement.
         
     4.  Representations  and  Warranties  of the  Company.  The Company  hereby
represents and warrants to the Investor that:

                                       3
<PAGE>


          4.1 Organization,  Good Standing and  Qualification.  The Company is a
corporation duly  incorporated,  validly existing and in good standing under the
laws of the State of Colorado and has all requisite power and authority to carry
on its business and own its  properties as now conducted and owned.  The Company
and each of its  subsidiaries  is duly qualified or licensed to do business as a
foreign  corporation in good standing in each  jurisdiction in which the conduct
of its business or its ownership or leasing of property makes such qualification
or licensing necessary unless the failure to so qualify or be licensed would not
have a Material Adverse Effect.

          4.2  Authorization.  The Company has full power and  authority and has
taken all requisite action on the part of the Company,  its officers,  directors
and stockholders necessary for (i) the authorization,  execution and delivery of
the Agreements, (ii) the performance of all obligations of the Company hereunder
or  thereunder,  and (iii)  the  authorization,  issuance  (or  reservation  for
issuance) and delivery of the Securities.  The Agreements  constitute the legal,
valid and binding obligations of the Company, enforceable against the Company in
accordance with their terms.

          4.3 Valid Issuance.

               (a) The Company  has  reserved a  sufficient  number of shares of
Common Stock for issuance upon  conversion of the Debentures and exercise of the
Warrants,  and such shares,  when issued in accordance with the respective terms
of the Debentures and the Warrants,  will be duly  authorized,  validly  issued,
fully  paid,   non-assessable  and  free  and  clear  of  all  encumbrances  and
restrictions,   except  for  restrictions  on  transfer  imposed  by  applicable
securities laws.

               (b) The authorized capital stock of the Company consists,  solely
of 30,000,000 shares of Common Stock and 5,000,000 shares of preferred stock. As
of July 27, 1998, the Company has 9,991,739 shares of Common Stock and no shares
of preferred  stock issued and  outstanding  and there are no other  outstanding
shares of capital stock of the Company. All of the issued and outstanding shares
of the Company's  Common Stock have been duly  authorized and validly issued and
are fully paid, nonassessable and free of preemptive rights. Except as set forth
on  Schedule  4.3,  no one is entitled to  preemptive  or similar  statutory  or
contractual  rights with respect to any  securities  of the  Company.  Except as
disclosed on Schedule 4.3 to this Agreement,  there are no outstanding warrants,
options,  convertible securities or other rights,  agreements or arrangements of
any character under which the Company is or may be obligated to issue any equity
securities  of any kind, or to transfer any equity  securities of any kind,  and
the Company and its  subsidiaries  do not have any present  plan or intention to
issue any equity securities of any kind, or to transfer any equity securities of
any kind owned by them.  Except as disclosed  on Schedule  4.3, the Company does
not know of any voting agreements, buy-sell agreements, option or right of first
purchase   agreements  or  other  agreements  of  any  kind  among  any  of  the
securityholders  of the Company relating to the securities held by them.  Except
as disclosed  on Schedule  4.3, the Company has not granted any Person the right
to require the Company to register any  securities of the Company under the 1933
Act,  whether  on a demand  basis or in  connection  with  the  registration  of
securities  of the  Company  for its own account or for the account of any other
Person.

                                       4
<PAGE>


               (c)  The  number  of  outstanding  shares  of  Common  Stock,  as
indicated above,  plus the number of shares of Common Stock issuable pursuant to
outstanding rights and agreements,  assuming the complete exercise or conversion
of all rights to acquire  capital  stock of the  Company  until such  rights and
subsequent  rights  incident to exercise or  conversion  are fully  exercised or
converted for Common Stock,  together  represent a total of 13,887,691 shares of
Common Stock immediately prior to the Closing,  plus an indeterminable number of
shares  of  Common  Stock  issuable  to the  Investor  pursuant  to  convertible
debentures previously issued to the investor.

          4.4 Consents.  The execution,  delivery and performance by the Company
of the  Agreements and the offer,  issue and sale of the  Securities  require no
consent of, action by or in respect of, or filing with, any Person, governmental
body,  agency,  or official  other than filings that have been made  pursuant to
applicable  state  securities laws and post-sale  filings pursuant to applicable
state and federal  securities  laws and the  requirements  of Nasdaq,  which the
Company undertakes to file within the applicable time periods.

          4.5 Delivery of SEC Filings;  Business.  The Company has  delivered or
made  available to the Investor  true and correct  copies of (i) its most recent
Annual Report on Form 10-KSB, (ii) its quarterly reports on Form 10-QSB for each
fiscal quarter subsequent to that fiscal year end, and (iii) any other documents
filed with the Securities and Exchange  Commission  (the "SEC") since the filing
of its  most  recent  Annual  Report  on Form  10-KSB  (collectively,  the  "SEC
Filings").  The Company and its  subsidiaries  are engaged  only in the business
described in the SEC Filings and the SEC Filings contain a complete and accurate
description of the business of the Company and its subsidiaries.

          4.6 Use of  Proceeds.  The  proceeds  of the  sale  of the  Securities
hereunder  shall  be used by the  Company  for  working  capital  and  operating
capital.
                      
          4.7 No Material  Adverse Change.  Except as set forth in Schedule 4.7,
since the filing of the Company's most recent Annual Report on Form 10-KSB or as
otherwise  identified  and described in subsequent  reports filed by the Company
pursuant to the 1934 Act, there has not been:
                          
               (i) any change in the consolidated assets, liabilities, financial
condition  or  operating  results  of the  Company  from that  reflected  in the
financial  statements  included in the Company's most recent Quarterly Report on
Form 10-QSB,  except  changes in the ordinary  course of business which have not
had, in the aggregate, a Material Adverse Effect;

               (ii)  any  declaration  or  payment  of  any  dividend,   or  any
authorization or payment of any distribution, on any of the capital stock of the
Company, or any redemption or repurchase of any securities of the Company;

                                       5
<PAGE>


               (iii) any material  damage,  destruction or loss,  whether or not
covered by  insurance to any assets or  properties  of the Company or any of its
subsidiaries;

               (iv) any waiver by the  Company or any of its  subsidiaries  of a
valuable right or of a material debt owed to it;

               (v)  any   satisfaction  or  discharge  of  any  lien,  claim  or
encumbrance  or  payment  of  any  obligation  by  the  Company  or  any  of its
subsidiaries,  except  in the  ordinary  course  of  business  and  which is not
material to the assets,  properties,  financial condition,  operating results or
business of the Company and its subsidiaries  taken as a whole (as such business
is presently conducted and as it is proposed to be conducted);

               (vi) any material  change or amendment to a material  contract or
arrangement  by which the  Company  or any of their  subsidiaries  or any of its
assets or properties is bound or subject;

               (vii) any  material  change in any  compensation  arrangement  or
agreement  with any employee of the Company or any of its  subsidiaries  who now
earns,  or who would earn as a result of such change,  in excess of $100,000 per
annum or any other officer of the Company or any of its subsidiaries;

               (viii)  any  labor   difficulties   or  labor  union   organizing
activities with respect to employees of the Company or any of its subsidiaries;

               (ix) any  transaction  entered  into by the Company or any of its
subsidiaries other than in the ordinary course of business; or

               (x) any other event or  condition  of any  character  which might
have a Material Adverse Effect that is not reflected in the SEC Filings.

          4.8 SEC Filings; Material Contracts.

               (a) As of its filing date,  each report filed by the Company with
the SEC pursuant to the 1934 Act,  complied as to form in all material  respects
with the  requirements of the 1934 Act and did not contain any untrue  statement
of a material fact or omit to state any material fact necessary in order to make
the statements made therein,  in the light of the circumstances under which they
were made, not misleading.

               (b) Each  registration  statement and any amendment thereto filed
by the  Company  pursuant  to  the  1933  Act  and  the  rules  and  regulations
thereunder,  as of the  date  such  statement  or  amendment  became  effective,
complied  as to form in all  material  respects  with  the  1933 Act and did not
contain any untrue  statement  of a material  fact or omit to state any material
fact required to be stated therein or necessary to make the  statements  therein
not misleading; and each prospectus filed pursuant to Rule 424(b) under the 1933
Act,  as of its  issue  date and as of the  closing  of any  sale or  securities
pursuant thereto did not contain any untrue statement of a material fact or omit
to state  any  material  fact  necessary  in order to make the  statements  made
therein,  in the light of the  circumstances  under  which they were  made,  not
misleading.

                                       6
<PAGE>


               (c)  Except  as  listed  in  Schedule  4.8  hereto,  there are no
agreements  or  instruments  currently  in force and effect  that  constitute  a
"material  contract"  (as such term is defined in Item  601(b)(10) of Regulation
S-K) of the Company or that constitute a warrant,  option,  convertible security
or other  right,  agreement  or  arrangement  of any  character  under which the
Company is or may be obligated to issue any equity  security of any kind,  or to
transfer  any equity  security of any kind.  The Company  has  delivered  to the
Investor  prior  to the  Closing  full and  complete  copies  of all  agreements
indicated in Schedule 4.8 hereto.
                                     
          4.9  Registration  Rights.  The  registration  rights  granted  to the
Investor pursuant to the Registration Rights Agreement are at least as favorable
to the Investor as those granted to any holder of any  securities of the Company
are to such holder.
                         
          4.10 No Breach,  Violation  or Default.  The  execution,  delivery and
performance of the  Agreements and the issuance and sale of the Securities  will
not result in a breach or  violation of any of the terms and  provisions  of, or
constitute  a default  under,  any  statute,  rule,  regulation  or order of any
governmental  agency  or  body  or  any  court,  domestic  or  foreign,   having
jurisdiction  over the Company or any  subsidiary of the Company or any of their
properties,  or any  agreement  or  instrument  to which the Company or any such
subsidiary is a party or by which the Company or any such subsidiary is bound or
to which any of the properties of the Company or any such subsidiary is subject,
or the  Certificate  of  Incorporation  or  By-Laws  of the  Company or any such
subsidiary.

          4.11 Tax Returns and Payments.  The Company and its subsidiaries  have
correctly  and timely  prepared and filed all tax returns  required to have been
filed by it with all appropriate federal,  state and local governmental agencies
and timely paid all taxes owed by them.  The  charges,  accruals and reserves on
the books of the Company and its subsidiaries in respect of taxes for all fiscal
periods are adequate in all material respects,  and there are no material unpaid
assessments  of the  Company or any  subsidiary  nor,  to the  knowledge  of the
Company,  any basis for the  assessment of any  additional  taxes,  penalties or
interest for any fiscal period or audits by any federal,  states or local taxing
authority  except such as which are not material.  All material  taxes and other
assessments  and levies  which the  Company or any  subsidiary  is  required  to
withhold or to collect for payment  have been duly  withheld and  collected  and
paid to the proper governmental entity or third party. There are no tax liens or
claims  pending or  threatened  against the Company or any  subsidiary or any of
their  respective  assets or  property.  There are no  outstanding  tax  sharing
agreements or other such arrangements  between the Company or any subsidiary and
any other corporation or entity.

          4.12 Title to Properties.  Except as disclosed in the SEC Filings, the
Company  and its  subsidiaries  have  good  and  marketable  title  to all  real
properties and all other  properties and assets owned by them, in each case free
from liens,  encumbrances  and defects  that would  materially  affect the value
thereof or  materially  interfere  with the use made or currently  planned to be
made thereof by them;  and except as  disclosed in the SEC Filings,  the Company
and its subsidiaries  hold any leased real or personal  property under valid and
enforceable  leases with no exceptions that would materially  interfere with the
use made or currently planned to be made thereof by them.

                                       7
<PAGE>


          4.13  Certificates,  Authorities  and  Permits.  The  Company  and its
subsidiaries  possess  adequate  certificates,  authorities or permits issued by
appropriate  governmental  agencies or bodies  necessary to conduct the business
now operated by them and have not received any notice of proceedings relating to
the  revocation or  modification  of any such  certificate,  authority or permit
that, if determined  adversely to the Company or any of its subsidiaries,  would
individually or in the aggregate have a Material Adverse Effect.

          4.14 No Labor  Disputes.  No labor  dispute with the  employees of the
Company  or any  subsidiary  exists  or, to the  knowledge  of the  Company,  is
imminent that might have a Material Adverse Effect.
                         
          4.15  Intellectual  Property.  The Company and its subsidiaries own or
possess  adequate  trademarks  and  trade  names  and have all  other  rights to
inventions,  know-how, patents,  copyrights,  confidential information and other
intellectual property  (collectively,  "Intellectual Property Rights"), free and
clear of all liens,  security  interests,  charges,  encumbrances,  equities and
other adverse claims, necessary to conduct the business now operated by them, or
presently  employed by them, and presently  contemplated to be operated by them,
and have not received any notice of  infringement  of or conflict  with asserted
rights of others with  respect to any  Intellectual  Property  Rights  that,  if
determined  adversely  to  the  Company  or  any  of  its  subsidiaries,   would
individually or in the aggregate have a Material Adverse Effect.  No proprietary
technology of any Person was used in the design or development by the Company of
(or otherwise  with respect to) any of the  Intellectual  Property  Rights which
technology was not properly acquired by the Company from such Person.

          4.16  Environmental  Matters.  Neither  the  Company  nor  any  of its
subsidiaries is in violation of any statute, rule, regulation, decision or order
of any governmental agency or body or any court,  domestic or foreign,  relating
to the use,  disposal or release of hazardous or toxic substances or relating to
the protection or restoration of the  environment or human exposure to hazardous
or toxic substances  (collectively,  "Environmental Laws"), owns or operates any
real  property   contaminated   with  any  substance  that  is  subject  to  any
Environmental  Laws,  is  liable  for any  off-site  disposal  or  contamination
pursuant to any  Environmental  Laws, or is subject to any claim relating to any
Environmental  Laws,  which violation,  contamination,  liability or claim would
individually or in the aggregate have a Material Adverse Effect; and the Company
is not aware of any pending investigation which might lead to such a claim.

          4.17 Litigation.  Except as disclosed in the SEC Filings, there are no
pending actions,  suits or proceedings against or affecting the Company,  any of
its  subsidiaries  or any of their  respective  properties  that,  if determined
adversely to the Company or any of its  subsidiaries,  would  individually or in
the aggregate have a Material  Adverse Effect or would  materially and adversely
affect  the  ability  of the  Company  to  perform  its  obligations  under this
Agreement,  or which are  otherwise  material  in the context of the sale of the
Securities;   and  to  the  Company's  knowledge,  no  such  actions,  suits  or
proceedings are threatened or contemplated.

                                       8
<PAGE>


          4.18 Financial  Statements.  The financial statements included in each
SEC Filing present fairly the consolidated financial position of the Company and
its  subsidiaries  as of the  dates  shown  and their  consolidated  results  of
operations and cash flows for the periods shown,  and such financial  statements
have  been  prepared  in  conformity  with  the  generally  accepted  accounting
principles applied on a consistent basis.

          4.19 Insurance Coverage.  The Company and its subsidiaries maintain in
full  force and effect  insurance  coverage  that is  customary  for  comparably
situated  companies for the business being  conducted,  and properties  owned or
leased, by the Company and its subsidiaries, and the Company reasonably believes
such insurance coverage to be adequate against all liabilities, claims and risks
against which it is customary for comparably situated companies to insure.

          4.20  Compliance  with  Nasdaq  Continued  Listing  Requirements.  The
Company is in compliance with all applicable  Nasdaq Small Cap Market  continued
listing  requirements  and has not received any notice from Nasdaq  concerning a
possible delisting of the Company's Common Stock within the last twelve months.

          4.21 Acknowledgment of Dilution.  The number of shares of Common Stock
issuable upon conversion of the Debentures may increase substantially in certain
circumstances,  including the circumstance where the trading price of the Common
Stock declines.  The Company's executive officers and directors have studied and
fully understand the nature of the Securities being sold hereunder and recognize
that such  Securities  have a dilutive  effect.  The Board of  Directors  of the
Company has concluded in its good faith business  judgment that such issuance is
in the  best  interests  of the  Company.  The  Company  acknowledges  that  its
obligations to issue shares of Common Stock in accordance  with the terms of the
Debentures upon conversion of the Debentures are binding upon it and enforceable
regardless of the dilution that such issuance may have on the ownership interest
of the other stockholders of the Company.

          4.22 Brokers and Finders.  The Company has taken no action which would
give rise to any claim by any Person for a broker's commission,  finder's fee or
similar payment by the Company or the Investor  related to this Agreement or the
transactions contemplated hereby, except for amounts which are payable to Rochon
Capital Group,  Ltd. which shall be the sole  responsibility  of the Company and
shall be paid exclusively by the Company out of escrow from the proceeds hereof.

          4.23 No Directed Selling Efforts or General Solicitation.  Neither the
Company  nor  any  person  acting  on  its  behalf  has  conducted  any  general
solicitation  or general  advertising  (as those terms are used in  Regulation D
under  the  1933  Act)  in  connection  with  the  offer  or  sale of any of the
Securities.

                                       9
<PAGE>


          4.24  No  Integrated  Offering  Requiring  Registration.  Neither  the
Company nor any of its Affiliates, nor any Person acting on its or their behalf,
has,  directly  or  indirectly,  made any  offers  or sales of any  security  or
solicited any offers to buy any security, under circumstances that would require
registration  of the offer  and sale of the  Securities  under the 1933 Act,  or
cause the offering of the Securities to be integrated with any prior offering(s)
by the  Company  for  purposes  of the  1933 Act or any  applicable  shareholder
approval provisions, including those under the rules of Nasdaq.

          4.25 Year 2000.  All of the products  which are being offered and sold
by the  Company  are now Year  2000  compliant,  which for the  purpose  of this
Section 4.25 means that such products  contain and/or rely on computer  software
programs  which are capable of handling  and  processing  dates  beyond the year
1999. The Company has undertaken all commercially  reasonable  efforts to ensure
that its  operational  computer  systems also are prepared to handle and process
dates beyond the year 1999.

          4.26 Disclosures. No representation or warranty made under any Section
hereof and no information  furnished by the Company pursuant  hereto,  or in any
other  document,  certificate  or  statement  furnished  by the  Company  to the
Investor  or any  authorized  representative  of the  Investor,  pursuant to the
Agreements  or in  connection  therewith,  contains  any untrue  statement  of a
material fact or omits to state a material fact necessary to make the respective
statements  contained  herein or therein,  in light of the  circumstances  under
which the statements were made, not misleading.

     5.  Representations  and  Warranties of the Investor.  The Investor  hereby
represents and warrants to the Company that:

          5.1  Organization  and Existence.  The Investor is a validly  existing
limited liability company and has all requisite corporate power and authority to
invest in the  Securities  pursuant  to this  Agreement.  The  Investor is not a
resident of the United States or any state, district or territory thereof.

          5.2  Authorization.  The  execution,  delivery and  performance by the
Investor of the Agreements  have been duly  authorized  and the Agreements  will
each  constitute  the valid and  legally  binding  obligation  of the  Investor,
enforceable against the Investor in accordance with their terms.

          5.3 Purchase  Entirely for Own Account.  The Securities to be received
by such Investor  hereunder  will be acquired for  investment for the Investor's
own  account,  not as  nominee  or agent,  and not with a view to the  resale or
distribution of any part thereof,  and the Investor has no present  intention of
selling,  granting any participation in, or otherwise distributing the same. The
Investor is not a registered  broker dealer or a Person  engaged in the business
of being a broker dealer.

          5.4 Investment Experience.  The Investor acknowledges that it can bear
the economic risk and complete loss of its  investment in the Securities and has
such  knowledge  and  experience  in  financial  or business  matters that it is
capable  of  evaluating  the  merits  and risks of the  investment  contemplated
hereby.

                                       10
<PAGE>


          5.5 Disclosure of Information.  The Investor has had an opportunity to
ask questions and receive  answers from the Company  regarding the Company,  its
business and the terms and conditions of the offering of the Securities. Neither
such  inquiries  nor any  other due  diligence  investigation  conducted  by the
Investor  shall  modify,  amend or affect  the  Investor's  right to rely on the
Company's  representations  and  warranties  contained in this Agreement or made
pursuant to this Agreement.

          5.6  Restricted   Securities.   The  Investor   understands  that  the
Securities  are  characterized  as  "restricted  securities"  under the  federal
securities  laws  inasmuch  as they are being  acquired  from the  Company  in a
transaction  not  involving  a public  offering  and that  under  such  laws and
applicable  regulations such securities may be resold without registration under
the 1933 Act only in certain limited circumstances.

          5.7 Legends.  It is understood  that,  until  registration  for resale
pursuant to the  Registration  Rights  Agreement,  certificates  evidencing  the
Securities may bear one or all of the following legends:
                         
               (a)  "These   securities  have  not  been  registered  under  the
Securities  Act of 1933 (the  "Act").  They may not be sold,  offered  for sale,
pledged or  hypothecated  in the absence of a  registration  statement in effect
with  respect  to  the  securities  under  the  Act  or an  exemption  from  the
registration requirements of the Act."

               (b) If required  by the  authorities  of any state in  connection
with the issuance of sale of the  Securities,  the legend required by such state
authority.

          Upon  registration  for resale  pursuant  to the  Registration  Rights
Agreement,  all certificates evidencing the Common Stock shall be issued free of
such restrictive legends.

          5.8  Accredited  Investor.  The Investor is an accredited  investor as
defined in Rule 501(a) of Regulation D, as amended, under the 1933 Act.
                   
          5.9 No  General  Solicitation.  The  Investor  did  not  learn  of the
investment in the  Securities as a result of any public  advertising  or general
solicitation.
                 
     6. Registration  Rights Agreement.  The parties  acknowledge and agree that
part of the  inducement  for the  Investor to enter into this  Agreement  is the
Company's  execution  and delivery of the  Registration  Rights  Agreement.  The
parties acknowledge and agree that simultaneously with the execution hereof, the
Registration  Rights  Agreement  is being duly  executed  and  delivered  by the
parties thereto.

     7. Covenants and Agreements of the Company.

                                       11
<PAGE>


          7.1 Capital  Raising  Limitations.  From the date  hereof  through the
eight-month  period  following  the  later  of (A)  the  effective  date  of the
registration statement contemplated by the Registration Rights Agreement and (B)
the Second  Closing Date (the  "Restricted  Period"),  without the prior written
consent of the Investor  (which consent may be withheld in such  Investor's sole
discretion),  the Company shall not issue or sell, or agree to issue or sell (a)
any  equity  or debt  securities  that are  convertible  into,  exchangeable  or
exercisable  for,  or include the right to receive  additional  shares of Common
Stock either (i) at a conversion,  exercise or exchange rate or other price that
is based upon and/or  varies with the trading  prices of or  quotations  for the
Common  Stock at any time  after  the  initial  issuance  of such debt or equity
securities; or (ii) with a fixed conversion,  exercise or exchange price that is
subject to being reset at some future date(s) after the initial issuance of such
debt or equity security or upon the occurrence of specified or contingent events
directly or indirectly  related to the business of the Company or the market for
the Common Stock;  or (b) any  securities of the Company  pursuant to an "equity
line" structure which provides for the sale, from time to time, of securities of
the  Company  which are  registered  for  resale  pursuant  to the 1933 Act (the
transactions in this sentence being collectively  referred to as " Variable Rate
Transactions").  The Restricted Period shall be extended by that number of days,
if any, during which any Blackout Period (as defined in the Registration  Rights
Agreement) has been in effect.

          7.2 Rights of Investor upon Additional  Offerings.  The Company agrees
that for the period of one year following the later of (A) the effective date of
the registration  contemplated by the Registration  Rights Agreement and (B) the
Second Closing Date,  the Company shall give thirty days advance  written notice
to the Investor  prior to any offer or sale of any of its equity  securities  or
any  securities  convertible  into  or  exchangeable  or  exercisable  for  such
securities.  In  addition,  prior to the closing of any such sale,  the Investor
shall have the right to  participate  in such  offering and purchase such equity
securities  for the same  consideration  and on the same terms and conditions as
contemplated for such third-party sale, which right must be exercised in writing
by the Investor  within ten business days  following  receipt of the notice from
the  Company.  If,  subsequent  to the  Company  giving  notice to the  Investor
hereunder, the terms and conditions of the proposed third-party sale are changed
in any way,  the  Company  shall be  required  to  provide  a new  notice to the
Investor  hereunder and the Investor  shall have the right to participate in the
offering on such changed terms and conditions as provided hereunder.

          7.3  Limitation  on  Acquisitions  by Company.  Commencing on the date
hereof and  continuing  for a period of one year following the effective date of
the registration  statement  contemplated by the Registration  Rights Agreement,
the Company agrees that it shall not, directly or indirectly, in one or a series
of transactions,  purchase all or substantially all of the assets of, or greater
than a majority of the outstanding  securities of any entity having an after-tax
loss in excess of $100,000  for the most recent  four fiscal  quarters  from the
closing  date of any such  acquisition  by the Company  (or the earlier  date on
which the Company  makes any  payment,  in cash,  stock or kind,  in  connection
therewith), without obtaining the prior written consent of the Investor.

                                       12
<PAGE>


          7.4 Opinion of Counsel. The Company has delivered, simultaneously with
the execution  and delivery of this  Agreement,  the opinion of Norton  Lidstone
LLC, its counsel, in the form attached hereto as Exhibit F.
                  
          7.5  Reservation  of Common Stock  Pursuant to Conversion of Debenture
and Exercise of Warrants.  The Company hereby agrees to at all times reserve and
keep available out of its authorized but unissued shares of Common Stock, solely
for the purpose of  permitting  conversion  of the Debenture and exercise of the
Warrant,  such number of shares of Common Stock as shall from time to time equal
1.5 times the number of shares  sufficient to permit the complete  conversion of
the Debenture plus the number of shares of Common Stock as shall be necessary to
permit the exercise of the Warrant in accordance  with the  respective  terms of
the Debenture and the Warrant.

          7.6 Reports. So long as the Investor holds Debentures or Warrants, the
Company will deliver to the Investor the following  reports by overnight courier
to the address set forth in Section 9.4:
                        
               (a)  Quarterly  Reports.  As soon as  available  and in any event
within  45 days  after  the end of  each  fiscal  quarter  of the  Company,  the
Company's Form 10-QSB or, in the absence of a Form 10-QSB,  consolidated balance
sheets of the Company and its  subsidiaries as at the end of such period and the
related  consolidated  statements of operations,  stockholders'  equity and cash
flows for such period and for the portion of the Company's  fiscal year ended on
the last day of such  quarter,  all in  reasonable  detail  and  certified  by a
principal  financial  officer of the Company to have been prepared in accordance
with generally  accepted  accounting  principles,  subject to year-end and audit
adjustments.

               (b) Annual Reports.  As soon as available and in any event within
90 days after the end of each fiscal year of the  Company,  the  Company's  Form
10-KSB or, in the absence of a Form 10-KSB,  consolidated  balance sheets of the
Company  and  its  subsidiaries  as at the  end of such  year  and  the  related
consolidated  statements  of earnings,  stockholders'  equity and cash flows for
such  year,  all in  reasonable  detail  and  accompanied  by the report on such
consolidated  financial statements of an independent certified public accountant
selected by the Company and reasonably satisfactory to the Investor.

               (c) Securities  Filings.  As promptly as  practicable  and in any
event  within  five days after the same are  issued or filed,  copies of (i) all
press releases issued by the Company or any subsidiary,  and all notices,  proxy
statements,  financial  statements,  reports and documents as the Company or any
subsidiary  shall send or make  available  generally to its  stockholders  or to
financial  analysts,  and (ii) all periodic and special  reports,  documents and
registration  statements  (other  than on Form  S-8)  which the  Company  or any
subsidiary  furnishes or files, or any officer or director of the Company or any
of its subsidiaries (in such person's  capacity as such) furnishes or files with
the SEC.

                                       13
<PAGE>


               (d) Other  Information.  Such other  information  relating to the
Company or its  subsidiaries as from time to time may reasonably be requested by
the Investor  provided the Company  produces  such  information  in its ordinary
course of business.
                             
          7.7 Press Releases.  At least 48 hours prior to issuance,  the Company
shall submit for comment by facsimile to the Investor any press release or other
publicity   concerning  the  Investor,   the   Transaction   Agreements  or  the
transactions contemplated thereby.
                           
          7.8 No  Conflicting  Agreements.  The Company  will not,  and will not
permit its  subsidiaries  to, take any action,  enter into any agreement or make
any commitment  which would  conflict or interfere in any material  respect with
the obligations to the Investor under the Agreements.
                       
          7.9 Insurance.  The Company shall, and shall cause each subsidiary to,
have in full force and effect (a) insurance  reasonably  believed to be adequate
on all assets and activities of a type customarily  insured,  covering  property
damage  and  loss of  income  by  fire  or  other  casualty,  and (b)  insurance
reasonably  believed to be adequate  protection against all liabilities,  claims
and risks against which it is customary for companies  similarly situated as the
Company and the subsidiaries to insure.

          7.10  Compliance  with Laws. The Company will use reasonable  efforts,
and will cause each of its subsidiaries to use reasonable  efforts, to comply in
all material respects with all applicable laws, rules,  regulations,  orders and
decrees of all governmental authorities, except to the extent non-compliance (in
one instance or in the aggregate) would not have a Material Adverse Effect.

          7.11 Corporate Governance.  For so long as the Convertible  Debenture,
or any portion  thereof,  is  outstanding  and/or the Investor is the beneficial
owner of the Company's Common Stock, the Company:
                         
               (a)  Shall  distribute  to its  shareholders  copies of an annual
report  containing   audited  financial   statements  of  the  Company  and  its
subsidiaries a reasonable  period of time prior to the Company's  annual meeting
of shareholders;

               (b) Shall maintain a minimum of two independent  directors on its
board of directors;

               (c) Shall hold an annual meeting of  shareholders  each and every
year;

               (d) Shall solicit  proxies and provide proxy  statements  for all
meetings of shareholders;

               (e)  Shall  obtain   shareholder   approval  of  (i)  a  plan  or
arrangement  pursuant to which stock may be acquired by officers or directors of
the Company  (except for warrants or rights issued  generally to shareholders of
the Company or broadly based plans or arrangements  including other employees of
the  Company);  (ii) an issuance of the Company's  securities  when the issuance

                                       14
<PAGE>


will  result  in a  change  of  control;  (iii)  an  issuance  of the  Company's
securities in connection  with the acquisition of another company if shareholder
approval of such issuance is required under  applicable  Nasdaq rules;  and (iv)
any other issuance of the Company's  securities if shareholder  approval of such
issuance is required under applicable Nasdaq rules.

     8.  Survival.  All  representations,  warranties,  covenants and agreements
contained in this Agreement shall be deemed to be  representations,  warranties,
covenants  and  agreements as of the date hereof and shall survive the execution
and  delivery of this  Agreement  for a period of five years and six months from
the date of this Agreement;  provided, however, that the provisions contained in
Section 7 hereof shall survive in accordance therewith.

     9. Miscellaneous.

          9.1  Successors  and Assigns.  This  Agreement  may not be assigned by
either party without the prior written consent of the other party hereto, except
that without the prior  written  consent of the  Company,  but after notice duly
given,  the Investor may assign its rights and delegate its duties  hereunder to
an  Affiliate,  and without the prior  written  consent of  Investor,  but after
notice duly given,  the  Company may assign its rights and  delegate  its duties
hereunder to any  successor-in-interest  corporation in the event of a merger or
consolidation of the Company with or into another corporation,  or any merger or
consolidation  of another  corporation  with or into the Company  which  results
directly or  indirectly  in an aggregate  change in the  ownership or control of
more than 50% of the voting rights of the equity  securities of the Company,  or
the sale of all or  substantially  all of the  Company's  assets.  The terms and
conditions of this  Agreement  shall inure to the benefit of and be binding upon
the respective permitted successors and assigns of the parties.  Nothing in this
Agreement,  express or implied,  is intended to confer upon any party other than
the  parties  hereto or their  respective  successors  and  assigns  any rights,
remedies,  obligations,  or  liabilities  under or by reason of this  Agreement,
except as expressly provided in this Agreement.

          9.2  Counterparts.  This  Agreement  may be  executed  in two or  more
counterparts,  each of  which  shall be  deemed  an  original,  but all of which
together shall constitute one and the same instrument.
                        
          9.3  Titles and  Subtitles.  The  titles  and  subtitles  used in this
Agreement  are  used  for  convenience  only  and  are not to be  considered  in
construing or interpreting this Agreement.
                         
          9.4  Notices.  Unless  otherwise  provided,  any  notice  required  or
permitted  under this  Agreement  shall be given in writing  and shall be deemed
effectively given upon personal delivery to the party to be notified, or if sent
by telex or telecopier, upon receipt of the correct answer back, or upon deposit
with the United States Post Office,  by  registered  or certified  mail, or upon
deposit  with an  overnight  air  courier,  in each  case  postage  prepaid  and
addressed  to the party to be notified  at the  address as  follows,  or at such
other address as such party may designate by ten days' advance written notice to
the other party:

                                       15
<PAGE>


                 If to the Company:

                          Medical Dynamics, Inc.
                          99 Inverness Drive East
                          Englewood, CO 80112
                          Attn:  Van A. Horsley
                          Telephone:  303/790-2990
                          Facsimile:   303/799-1378

                          with a copy to:

                          Norton Lidstone LLC
                          5445 DTC Parkway, Suite 850
                          Denver, CO 80111
                          Attn:  Herrick Lidstone, Jr.
                          Telephone:  303/221-5552
                          Facsimile:   303/221-5553

                 If to the Investor:

                          The Tail Wind Fund, Ltd.
                          Windermere House
                          404 East Bay Street
                          P.O. Box SS-5539
                          Nassau, Bahamas
                          Telephone:
                          Facsimile:

                          with a copy to:

                          The Tail Wind Fund, Ltd.
                          c/o European American Securities, Inc.
                          One Regent Street, 4th Floor
                          London SW1Y 4NS
                          England
                          Attn:  David Crook
                          Telephone:  44-171-468-7660
                          Facsimile:   44-171-468-7657

                          and with a copy to:

                          Bryan Cave LLP
                          700 Thirteenth Street, N.W.
                          Washington, D.C.  20005
                          Attn:  LaDawn Naegle
                          Telephone:  202/508-6046
                          Facsimile:   202/508-6200

                                       16
<PAGE>


          9.5  Expenses.  The  Company  shall  pay the fees of Bryan  Cave  LLP,
counsel to the Investor, in an amount up to $12,500.
                         
          9.6 Amendments and Waivers.  Any term of this Agreement may be amended
and the observance of any term of this Agreement may be waived (either generally
or in a particular  instance and either  retroactively or  prospectively),  only
with the written  consent of the  Company and the  Investor.  Any  amendment  or
waiver  effected in accordance  with this  paragraph  shall be binding upon each
holder of any Securities purchased under this Agreement at the time outstanding,
each future holder of all such securities, and the Company.

          9.7 Severability. If one or more provisions of this Agreement are held
to be unenforceable  under applicable law, such provision shall be excluded from
this Agreement and the balance of this Agreement shall be interpreted as if such
provision  were so excluded  and shall be  enforceable  in  accordance  with its
terms.

          9.8 Entire  Agreement.  This  Agreement,  including  the  Exhibits and
Schedules hereto,  and the Registration  Rights Agreement  constitute the entire
agreement among the parties hereof with respect to the subject matter hereof and
thereof and supersede all prior  agreements  and  understandings,  both oral and
written,  between the parties  with  respect to the  subject  matter  hereof and
thereof.

          9.9 Further Assurances. The parties shall execute and deliver all such
further  instruments  and  documents  and  take all such  other  actions  as may
reasonably be required to carry out the transactions  contemplated hereby and to
evidence the fulfillment of the agreements herein contained.

          9.10  Applicable  Law.  This  Agreement  shall  be  governed  by,  and
construed in accordance  with, the laws of the State of Colorado  without regard
to principles of conflicts of laws.
                          
                                       17
<PAGE>


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




The Company:                             MEDICAL DYNAMICS, INC.


                                         By:_________________________
                                         Name:  Van A. Horsley
                                         Title:     President



The Investor:                            THE TAIL WIND FUND, LTD.


                                         By:_________________________
                                         Name:
                                         Title:

                                       18

<PAGE>



                                  Schedule 4.3
                                  ------------

               See attached Schedule 4.3




                                       19
<PAGE>


                                  Schedule 4.7
                                  ------------

               None.




                                       20
<PAGE>


                                  Schedule 4.8
                                  ------------

               None.

                                       21

<PAGE>

                                                       
                              CONVERTIBLE DEBENTURE
                              ---------------------

$100,000                                                           July __, 1998

     FOR VALUE RECEIVED,  the undersigned,  Medical  Dynamics,  Inc., a Colorado
corporation (the "Company"), promises to pay to the order of The Tail Wind Fund,
Ltd., or the holder hereof, on July __, 2003 ("Due Date"),  the principal sum of
One Hundred  Thousand  Dollars  ($100,000),  or, if less,  the unpaid  principal
amount  outstanding  at such time,  in either case together with all accrued and
unpaid interest thereon.

     The Company  also  promises  to pay  interest  semi-annually  from the date
hereof on the  principal  amount  hereof  unpaid  during such period  (including
amounts converted during the period for the time such was outstanding) at a rate
of eight percent (8%) per annum. Interest on this Debenture shall be computed on
the basis of a 360-day  year.  Interest  through  the last day of the  preceding
calendar  semi-annual period shall be payable on or before the fifth day of each
January and July, commencing in January 1999.

     This Debenture is one of the Debentures  referred to in and issued pursuant
to the  Purchase  Agreement  dated July __,  1998,  between  the Company and the
Investor  named  therein  (the  "Purchase  Agreement"),  and is  entitled to the
benefits of, and subject to the terms and provisions of the Purchase  Agreement.
Capitalized  terms used herein and not otherwise  defined  herein shall have the
meaning ascribed to them in the Purchase Agreement.

     1. Payments

     All payments by the Company  hereunder  shall be payable in lawful money of
the United States in immediately  available funds by wire transfer to an account
designated in writing by the Investor, or in the case of conversion of principal
and,  at the option of the  Company,  payment of  interest,  in shares of common
stock of the Company, par value $.001 per share (the "Common Stock"),  valued at
the  Conversion  Price (for the conversion of principal) and at the Market Price
(for the payment of  interest),  not later than 5:00 p.m.,  Mountain time on the
day when due to the holder at the following address:

                     The Tail Wind Fund, Ltd.
                     c/o Mees Pierson Fund Services
                     Fourth Floor Russell House
                     Dublin 2 IRELAND 1M14LE
                     United Kingdom

or at such other place as the holder  hereof may from time to time  designate in
writing  to the  Company.  Whenever  any  payment  to be made  pursuant  to this
Debenture  shall be stated to be due on a public  holiday,  Saturday  or Sunday,
such payment may be made on the next succeeding  business day. Such extension of
time  shall not in such case be  included  in  computing  interest,  if any,  in
connection with such payment.

<PAGE>


     2. Conversion of Debenture

          (a) From time to time,  until all unpaid  principal  and  accrued  and
unpaid interest under this Debenture is paid, the holder of this Debenture shall
have the right to  convert  (i) at any time from and  after one  hundred  twenty
(120) days after the original  issuance hereof, up to one-third of the principal
amount of this  Debenture,  (ii) at any time from and after one  hundred  eighty
(180) days after the original  issuance hereof, up to an aggregate of two-thirds
of the principal amount of this Debenture,  and (iii) at any time from and after
two hundred  forty (240) days after the  original  issuance  hereof,  all of the
principal amount of this Debenture,  in whole or in part, into an amount of duly
authorized,  fully-paid and non-assessable  shares of Common Stock determined by
dividing such principal  amount to be so converted by the  Conversion  Price (as
hereinafter  defined),  and  upon  the  terms  and  subject  to  the  conditions
hereinafter  specified  in this Section 2. Any unpaid  principal  amount of this
Debenture  outstanding  on the Due Date,  together  with any  accrued and unpaid
interest thereon,  shall automatically convert to Common Stock at the Conversion
Price (defined below).

          (b) In order to convert this  Debenture  into shares of Common  Stock,
the holder shall:  (i) fax a copy of the fully executed  notice of conversion in
the form attached  hereto  ("Notice of Conversion") to the Company at the office
of the Company or its designated  transfer  agent,  if any, for the  Debentures,
which notice shall  specify the amount of the  Debenture  to be  converted,  the
applicable Conversion Price, and a calculation of the number of shares of Common
Stock issuable upon such  conversion  (together with a copy of the first page of
this  Debenture)  prior to 5:00  p.m.,  Mountain  time (the  "Conversion  Notice
Deadline") on the date of conversion specified on the Notice of Conversion;  and
(ii) surrender the original Debenture being converted,  along with a copy of the
Notice of  Conversion  as soon as  practicable  thereafter  to the office of the
Company or the transfer agent, if any, for the  Debentures;  provided,  however,
that the Company  shall not be obligated to issue  certificates  evidencing  the
shares of Common Stock issuable upon such conversion unless either the Debenture
is  delivered  to the Company or its transfer  agent as provided  above,  or the
holder  notifies the Company or its transfer agent that such original  Debenture
has  been  lost,  stolen  or  destroyed.  In the  case  of a  dispute  as to the
calculation  of the  Conversion  Price,  the Company shall  promptly  issue such
number of shares  of Common  Stock  that are not  disputed  in  accordance  with
subparagraph  (c) below.  The Company shall submit the disputed  calculations to
its outside  accountant via facsimile within two (2) business days of receipt of
the Notice of Conversion. The accountant shall audit the calculations and notify
the  Company  and the holder of the results no later than 48 hours from the time
it receives the disputed  calculations.  The accountant's  calculation  shall be
deemed conclusive absent manifest error.

          (c) Upon the surrender of the Debenture as described above accompanied
by the  Notice of  Conversion,  the  Company  shall  issue  and,  within two (2)
business days (the  "Delivery  Period") after such surrender (or, in the case of
lost,  stolen or  destroyed  Debenture,  after  provision  of an  agreement  and
indemnification  by the holder to the  Company),  direct its  transfer  agent to
deliver to or upon the order of the  holder (i) that  number of shares of Common
Stock for the  portion of the  Debenture  converted  as shall be  determined  in
accordance  herewith and (ii) a new  Debenture  representing  the balance of the
principal  amount of the Debenture  surrendered  but not  converted,  if any. In
addition to any other remedies available to the holder, including actual damages

                                       2
<PAGE>


and/or  equitable  relief,  the Company shall pay to the holder $250 in cash for
the third day beyond such  Delivery  Period  that the  Company  fails to deliver
Common  Stock  issuable  upon  surrender  of  the  Debenture  with a  Notice  of
Conversion, and $500 per day in cash for each day thereafter, until such time as
the earlier of the date that the Company has delivered all such Common Stock and
the tenth day beyond such  Delivery  Period.  Such cash amount  shall be paid to
such  holder by the fifth day of the month  following  the month in which it has
accrued.  In the event the Company  fails to deliver  such Common Stock prior to
the  expiration  of five (5)  business  days after the  Delivery  Period for any
reason  (whether due to a requirement  of law or a stock exchange or otherwise),
the holder  shall be entitled to a 1% discount on the  Conversion  Price for the
next conversion noticed by such holder to the Company.  In the event the Company
fails to deliver  such  Common  Stock  prior to the  expiration  of the ten (10)
business day period after the Delivery  Period for any reason  (whether due to a
requirement  of law or a stock  exchange or  otherwise),  such  holder  shall be
entitled  to (in  addition  to  any  other  remedies  available  to the  holder)
Conversion  Default Payments in accordance with Section 2(h) hereof beginning on
the expiration of such ten (10) business day period.

          (d) If any conversion of this  Debenture  would result in a fractional
share of Common  Stock or the  right to  acquire  a  fractional  share of Common
Stock, such fractional share shall be disregarded.

          (e) The "Conversion Date" shall be the date specified in the Notice of
Conversion,  provided (i) that the advance copy of the Notice of  Conversion  is
faxed to the Company before 5:00 p.m.,  Mountain  time, on the Conversion  Date,
and (ii) that the  original  Debenture is  surrendered  along with a copy of the
Notice of  Conversion  as soon as  practicable  thereafter  to the office of the
Company or the transfer agent for the Debentures. The person or persons entitled
to received the shares of Common Stock issuable upon conversion shall be treated
for all purposes as the record  holder or holders of such  securities  as of the
Conversion Date and all rights with respect to the Debenture  fully  surrendered
shall forthwith terminate except the right to receive the shares of Common Stock
or other securities or property issuable on such conversion.

          (f) The  Conversion  Price per share (  "Conversion  Price")  at which
shares of Common Stock shall be issuable upon conversion of this Debenture shall
be equal to 100% of the Market Price on the business day  immediately  preceding
the Conversion  Date;  provided,  however,  that the Conversion  Price shall not
exceed the Ceiling Price (defined below).  "Market Price" shall mean the average
of the two lowest  closing  bid prices of the Common  Stock as  reported  by The
Nasdaq  Stock  Market over the sixty  trading  day period  ending on the date in
question.  The "Ceiling  Price" shall mean 120% of the average closing bid price
of the Common Stock for the twenty  trading days prior to the effective  date of
the registration  statement  contemplated by the  Registration  Rights Agreement
entered  into by and between the parties on July __,  1998;  provided,  however,
that the Ceiling Price shall be adjusted  effective upon the second  anniversary
of the  Purchase  Agreement  to 120% of the Market  Price on such date,  if such
adjustment  would  result in a lower  price,  but in no event  shall the Ceiling
Price be adjusted to an amount less than $2.25.

                                       3
<PAGE>


          (g) In order to prevent  dilution  of the  conversion  rights  granted
under this Section 2, the Conversion  Price shall be subject to adjustment  from
time to time as follows:

               (i) If the  Common  Stock  shall  be  changed  into the same or a
different number of shares of any class or classes of capital stock,  whether by
capital  reorganization,  recapitalization,  reclassification or otherwise or in
the event of a merger  or  consolidation  of the  Company  with or into  another
corporation  or the sale of  substantially  all of the  Company's  assets to any
other  person,  then and in each such event the holder of this  Debenture  shall
have the right  thereafter to convert this Debenture or any portion thereof into
the kind and amount of shares of capital stock and other securities and property
receivable upon such reorganization, recapitalization, reclassification, merger,
consolidation,  sale or other  change  by a holder  of the  number  of shares of
Common Stock into which this  Debenture  might have been  converted  immediately
prior  to  such  reorganization,  recapitalization,   reclassification,  merger,
consolidation, sale or change.

               (ii)  If  any  event  occurs  of  the  type  contemplated  by the
provisions  of  this  Section  2(g)  but  not  expressly  provided  for by  such
provisions  (including,  without limitation,  the granting of stock appreciation
rights,  phantom  stock rights or other rights with equity  features),  then the
Company's  board  of  directors  shall  make an  appropriate  adjustment  in the
Conversion  Price so as to protect  the rights of the holder of this  Debenture;
provided  that no  such  adjustment  shall  increase  the  Conversion  Price  as
otherwise  determined  pursuant to this  Section  2(g) or decrease the number of
shares of Common Stock issuable upon conversion of this Debenture.

               (iii)  Immediately  upon any adjustment of the Conversion  Price,
the Company shall give written notice  thereof to the holder of this  Debenture,
setting  forth in  reasonable  detail and  certifying  the  calculation  of such
adjustment.

          (h) The Company  covenants  that it will at all times reserve and keep
available  out of its  authorized  Common  Stock,  solely  for  the  purpose  of
effecting  the  conversion  of this  Debenture,  such number of shares of Common
Stock  as shall  from  time to time be  issuable  upon  the  conversion  of this
Debenture;  and if at any time the number of authorized  but unissued and issued
but not outstanding  shares of the Common Stock, on a fully diluted basis, shall
not be sufficient to effect the  conversion of this  Debenture at the Conversion
Price then in effect,  the  Company  will take such  corporate  action as may be
necessary to increase its authorized but unissued or issued but not  outstanding
shares of the Common Stock to such number of shares as shall be  sufficient  for
such purpose.  The Company covenants that all shares of Common Stock which shall
be so issuable, when issued upon conversion of this Debenture, shall be duly and
validly issued, fully-paid and non-assessable. If at any time a holder submits a
Conversion Notice, the Company does not have sufficient  authorized but unissued
shares of Common Stock  available to effect such  conversion in accordance  with
the  provisions of this Section 2 (a  "Conversion  Default"),  the Company shall
issue to the holder all of the shares of Common  Stock  which are  available  to
effect  such  conversion.  The  number  of  shares  included  in the  Notice  of

                                       4
<PAGE>


Conversion  which exceeds the amount which is then  convertible  into  available
shares of Common Stock (the "Excess Amount") shall,  notwithstanding anything to
the  contrary  contained  herein,  not  be  convertible  into  Common  Stock  in
accordance  with the terms hereof until (and at the holder's  option at any time
after) the date additional  shares of Common Stock are authorized by the Company
to permit such conversion, at which time the Conversion Price in respect thereof
shall be the lesser of (i) the Conversion  Price on the Conversion  Default Date
(as defined below) and (ii) the Conversion  Price on the Conversion Date elected
by the holder in respect  thereof.  The Company shall pay to the holder payments
("Conversion  Default  Payments")  for a  Conversion  Default  in the  amount of
(N/365),  multiplied by the sum of the principal  amount of the Debenture sought
to be  converted,  multiplied  by the  Excess  Amount  on the  first  day of the
Conversion Default (the "Conversion Default Date"), multiplied by .36, where N =
the  number  of  days  from  the  Conversion  Default  Date  to  the  date  (the
"Authorization  Date") that the Company authorizes a sufficient number of shares
of Common Stock to effect  conversion of the full amount of the  Debenture.  The
Company  shall send  notice to the  holder of the  authorization  of  additional
shares  of Common  Stock,  the  Authorization  Date and the  amount of  holder's
accrued Conversion Default Payments. The accrued Conversion Default Payments for
each calendar  month shall be paid in cash or shall be  convertible  into Common
Stock at the Conversion Price, at the holder's option, as follows:

               (i) In the event holder elects to take such payment in cash, cash
payment  shall be made to holder by the  fifth  day of the month  following  the
month in which it has accrued; and

               (ii) In the event  holder  elects to take such  payment in Common
Stock,  the holder may convert  such  payment  amount  into Common  Stock at the
Conversion  Price (as in effect at the time of Conversion) at any time after the
fifth day of the month following the month in which it has accrued in accordance
with the terms of this Section 2.

Nothing  herein shall limit the holder's  right to pursue actual damages for the
Company's failure to maintain a sufficient number of authorized shares of Common
Stock, and each holder shall have the right to pursue all remedies  available at
law or in equity (including a decree of specific  performance  and/or injunctive
relief).

          (i)  Notwithstanding  anything to the contrary  herein,  conversion of
this Debenture shall not be permitted, and the Company shall not pay any amounts
due to the holder of this  Debenture in the form of shares of Common  Stock,  if
such conversion or payments would result in the holder of this Debenture  owning
more than 4.99% of the issued and  outstanding  shares of Common Stock following
conversion or payment (such  percentage to be calculated in accordance with Rule
13d-3 promulgated under the Securities Exchange Act of 1934).

          (j) The issuance of  certificates  for shares of the Common Stock upon
the  conversion  of this  Debenture  shall be made without  charge to the holder
hereof for any issuance tax in respect of the issuance of such  certificates  or
other cost incurred by the Company in connection  with such  conversion  and the
related issuance of shares of Common Stock.

                                       5
<PAGE>


     3.  Covenant.  The  Company  agrees at all times  that it will not,  by any
amendment  of  the  Company's   Articles  of   Incorporation,   or  through  any
consolidation, merger, reorganization, transfer of assets, dissolution, issue or
sale of securities or any other voluntary  action,  seek to avoid the observance
or performance  hereof, but will at all times take such actions as are necessary
or appropriate in order to protect the rights of the holder of this Debenture.

     4. Events of Default

          (a) In addition to the Default provisions provided above in respect of
Conversion, an "Event of Default" shall exist if any of the following occurs and
is continuing:

               (i) Failure to make any payment of  principal  or interest on the
Debenture  when such payment is due, other than the final payment due on the Due
Date;

               (ii) Failure to make  payment of all  outstanding  principal  and
interest on the Debenture on the Due Date;

               (iii)  Failure  to  comply  with  any  other  provision  of  this
Debenture and such failure  continues for more than five (5) business days after
the holder hereof has given written notice of such failure to the Company;

               (iv) The Common Stock is not listed or included for  quotation on
The Nasdaq  SmallCap Market System,  The Nasdaq National Market System,  the New
York Stock Exchange or the American Stock Exchange;

               (v) Any levy, seizure,  attachment,  execution or similar process
shall be levied on a material portion of the Company's property; or

               (vi) A receiver, custodian, liquidator or trustee of the Company,
or of any of the  property of the Company,  is appointed by court order;  or the
Company is  adjudicated  bankrupt or  insolvent;  or any of the  property of the
Company is sequestered  by court order;  or a petition to reorganize the Company
under any  bankruptcy,  reorganization  or  insolvency  law is filed against the
Company and is not  dismissed  within sixty (60) days after such filing;  or the
Company files a voluntary  bankruptcy  petition or requesting  reorganization or
arrangement under any provision of any bankruptcy,  reorganization or insolvency
law, or consents to the filing of any petition against it under any such law; or
the Company  makes a general  assignment  for the benefit of its  creditors,  or
admits in writing its  inability to pay its debts  generally as they become due,
or  consents to the  appointment  of a receiver,  trustee or  liquidator  of the
Company or of all or any part of the property of the Company.

          (b) If an Event of Default  specified in Section 4(a)(i) exists,  then
this  Debenture  shall  accrue  additional  interest  on all  unpaid  amounts of
principal  and interest from the date of the Event of Default at a rate equal to
the greater of (i) fifteen  percent  (15%) per annum or (ii) the highest  amount
allowable by law.

                                       6
<PAGE>


          (c) If an Event of Default other than an Event of Default specified in
Section  4(a)(i)  exists,  then the holder of this  Debenture  may  exercise any
right,  power or remedy  conferred  upon it by law,  and shall have the right to
declare by written notice the entire  principal and all interest accrued on such
Debenture to be, and such Debenture  shall thereupon  become,  forthwith due and
payable without any declaration,  presentment,  demand, protest or notice of any
kind. The Company shall forthwith pay to the holder of this Debenture the entire
principal and interest accrued on such Debenture.

     5.  Registration.  The initial  holder of this Debenture is entitled to the
benefit of certain  registration rights in respect of the shares of Common Stock
into which this Debenture may be coverted pursuant to that  Registration  Rights
Agreement dated effective July __, 1998.
                       
     6. Miscellaneous

          (a) Every  maker,  endorser  and  guarantor  of this  Debenture or the
obligation  represented by this Debenture waives  presentment,  demand,  notice,
protest  and all other  demands or notices,  in  connection  with the  delivery,
acceptance, endorsement,  performance, default or enforcement of this Debenture,
assents to any and all extensions or postponements of the time of payment or any
other indulgences,  including without limitation, the release or substitution of
collateral,  and  agrees  to be  bound  by  all of the  terms  contained  in the
Debenture.

          (b) No delay or omission by the holder hereof in exercising  any right
or remedy  hereunder  shall  constitute a waiver of any such right or remedy.  A
waiver on one occasion shall not operate as a bar to or waiver of any such right
or remedy on any future occasion.

          (c) The  Company  shall  pay all  reasonable  costs  and  expenses  of
collection,  including attorney's fees, incurred or paid by the holder hereof in
enforcing this Debenture and the obligations evidenced hereby.

          (d) This  Debenture  may be amended  only by written  agreement of the
Company and the holder hereof.

          (e) This  Debenture  is  governed by the laws of the State of Colorado
and is executed as a sealed instrument as of the date first above written.

                                       7

<PAGE>



     IN WITNESS  WHEREOF,  the Company has caused this  Debenture to be executed
and  delivered  by its duly  authorized  officer  as of the day and  year  first
written above.


                                           MEDICAL DYNAMICS, INC.


                                           By:__________________________________
                                           Title:_______________________________


                                       8

<PAGE>

                              MEDICAL DYNAMICS, INC.
                              CONVERTIBLE DEBENTURE
                              NOTICE OF CONVERSION


MEDICAL DYNAMICS, INC.
99 Iverness Drive East
Englewood, CO  80112

     The  undersigned   hereby  elects  to  convert   $_______________   of  the
Convertible  Debenture  represented by the within Convertible Debenture for, and
to  acquire  thereunder  _______________  shares  of Common  Stock  ("Conversion
Shares") as  provided  for  therein,  and  requests  that  certificates  for the
Conversion Shares be issued as follows:

                           --------------------------------
                           Name
                           --------------------------------
                           Address
                           --------------------------------

                           --------------------------------
                           Federal Tax Identification No.
                           or Social Security No.

and, if the amount of the principal of the Convertible Debenture being converted
hereby shall not be all of the principal amount of such  Convertible  Debenture,
that a new Convertible Debenture or the balance of such Convertible Debenture be
issued forthwith to the holder or the undersigned's  Assignee as below indicated
and delivered to the address stated below. The undersigned hereby represents and
warrants that sales of the  Conversion  Shares will be made only pursuant to the
Prospectus  covering the registered resale of the Conversion Shares, and that it
will comply with all applicable prospectus delivery requirements.

Dated:___________________, ____

                                      Signature:______________________________

                                            ______________________________
                                            Name (please print)
                                            ______________________________
                                            Address
                                            ______________________________

                                            ______________________________
                                            Federal Identification or Soc Sec #

                                       9








                              NORTON * LIDSTONE, LLC
                           5445 DTC Parkway, Suite 850
Michael J. Norton           Englewood, Colorado 80111
Herrick K. Lidstone, Jr.     telephone: 303-221-5552
                             facsimile: 303-221-5553

                               ______________, 1998

Medical Dynamics, Inc.
99 Inverness Drive East
Englewood, Colorado 80112           [TO BE AMENDED]

Re:      Medical Dynamics, Inc.
         Registration Statement on Form S-3
         Registration No. 333-42631

Ladies and Gentlemen:

     In  connection  with  the  above-captioned   Registration   Statement  (the
"Registration   Statement")  filed  by  Medical   Dynamics,   Inc.,  a  Colorado
corporation  (the  "Company"),  with  the  Securities  and  Exchange  Commission
pursuant to the  Securities  Act of 1933, as amended (the "Act"),  and the rules
and  regulations  thereunder  as amended  through the date hereof,  we have been
requested to render our opinion as to the legality of:

     i) Shares of the  Company's  common  stock (the "Common  Stock")  which are
     issuable as a result of the  conversion  of  convertible  debentures in the
     aggregate  principal  amount of $1,500,000 (the  "Debentures") on the terms
     and conditions stated in the Debentures (the "Conversion Shares");

     ii) Shares of Common Stock which are issuable in payment of interest on the
     Debentures to be calculated as provided  therein (the  "Interest  Shares");
     and

     iii) Up to 150,000  shares  issuable  on  exercise of a warrant to purchase
     Common Stock as provided therein (the "Warrant Shares").

     The  Conversion  Shares,  the  Interest  Shares and the Warrant  Shares are
hereinafter collectively referred to as the "Securities".

     In connection  with this opinion,  we have  examined  originals,  or copies
certified or otherwise  identified to our satisfaction,  of (i) the Registration
Statement (including all amendments thereto); (ii) the Articles of Incorporation
and the By-laws of the Company,  each as amended to date;  and (iii)  records of
certain of the  Company's  proceedings  relating  to,  among other  things,  the
issuance  and sale of the  Securities.  In  addition,  we have made  such  other
examinations  of law and  facts as we  considered  necessary  in order to form a
basis for the opinions hereunder expressed.


<PAGE>


                             NORTON * LIDSTONE, LLC
Medical Dynamics, Inc.
____________, 1998
Page 2

     In our  examination of the aforesaid  documents,  we have assumed,  without
independent investigation, the genuineness of all signatures, the enforceability
of the  documents  against  each  party  thereto  other  than the  Company,  the
authenticity  of all documents  submitted to us as originals,  the conformity to
the  original  documents  of  all  documents   submitted  to  us  as  certified,
photostatic,  reproduced or conformed copies of validly  existing  agreements or
other  documents,  the  authenticity of all such latter  documents and the legal
capacity of all  individuals  who have  executed  any of the  documents  we have
reviewed.

     In  expressing  the  opinions  set  forth  herein,   we  have  relied  upon
representations  as to factual matters  contained in certificates of officers of
the Company.

     Based upon the foregoing,  and subject to the  assumptions,  exceptions and
qualifications  set forth  herein,  we are of the  opinion  that the  Conversion
Shares,  the Interest  Shares,  and the Warrant Shares have been duly authorized
and when the Conversion  Shares and the Interest Shares are issued and delivered
in accordance with the terms of the Debenture, and the Warrant Shares are issued
and delivered in accordance  with the terms of the Warrant,  the Securities will
be legally issued, fully paid and nonassessable.

     The  foregoing  opinions  are limited to the laws of the State of Colorado.
Our  opinion  is  rendered  only  with  respect  to the  laws,  and  the  rules,
regulations and orders thereunder, which are currently in effect.

     We hereby  consent  to the  filing of this  opinion  as an  Exhibit  to the
Registration  Statement  and to the  reference  to us under the  heading  "Legal
Matters" in the Prospectus. In giving such consent, we do not thereby admit that
we are in the category of persons whose  consent is required  under Section 7 of
the Act.

                                              Very truly yours,








                          INDEPENDENT AUDITOR'S CONSENT

     We consent to the incorporation by reference in the registration  statement
on Form S-3 of Medical Dynamics,  Inc. of our report dated November 20, 1997, on
our audits of the consolidated financial statements of Medical Dynamics, Inc. as
of  September  30,  1997,  and for  each of the two  years in the  period  ended
September 30, 1997,  which report is included in the Company's  Annual Report on
Form 10-KSB.


HEIN + ASSOCIATES LLP

Denver, Colorado
_______________, 1998






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