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                              WARRANT AGREEMENT



                                   BETWEEN



                          MILESTONE SCIENTIFIC INC.

                                     AND

                  CONTINENTAL STOCK TRANSFER & TRUST COMPANY



                       DATED AS OF ___________ __, 2004



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                              WARRANT AGREEMENT

      This Agreement, dated as of ____________ __, 2004, is between Milestone
Scientific Inc., a Delaware corporation (the "Company") and Continental Stock
Transfer & Trust Company _____________, a ______________, (the "Warrant
Agent").

      The Company, at or about the time that it is entering into this
Agreement, proposes to issue and sell to public investors up to 1,200,000
Units (together with the additional units issuable as provided herein, the
"Units").  Each Unit consists of two shares of Common Stock, $0.001 par
value, of the Company and one warrant (collectively, the "Warrants").  Each
Warrant is exercisable to purchase one share of Common Stock upon the terms
and conditions and subject to adjustment in certain circumstances, all as set
forth in this Agreement.  The Company also purposes to grant the
Representative of the Underwriters of the public offering an option to
purchase 180,000 additional Units to cover over-allotments, if any.

      The Company proposes to issue to the Representative of the Underwriters
in the public offering of Units referred to above warrants to purchase up to
100,000 additional Units.

      The Company wishes to retain the Warrant Agent to act on behalf of the
Company, and the Warrant Agent is willing so to act, in connection with the
issuance, transfer, exchange and replacement of the certificates evidencing
the Warrants to be issued under this Agreement (the "Warrant Certificates")
and the exercise of the Warrants;

      The Company and the Warrant Agent wish to enter into this Agreement to
set forth the terms and conditions of the Warrants and the rights of the
holders thereof ("Warrantholders") and to set forth the respective rights and
obligations of the Company and the Warrant Agent.  Each Warrantholder is an
intended beneficiary of this Agreement with respect to the rights of
Warrantholders herein.

      NOW, THEREFORE, in consideration of the premises and the mutual
agreements herein set forth, the parties hereto agree as follows:

      1.    Appointment of Warrant Agent.  The Company appoints the Warrant
Agent to act as agent for the Company in accordance with the instructions in
this Agreement and the Warrant Agent accepts such appointment.

      2.    Date, Denomination and Execution of Warrant Certificates.

     (a) The Warrant Certificates (and the Form of Election to Purchase and the
Form of Assignment to be printed on the reverse thereof) shall be in registered
form only and shall be substantially of the tenor and purport recited in Exhibit
A hereto, and may have such letters, numbers or other marks of identification or
designation and such legends, summaries or endorsements printed, lithographed or
engraved thereon as the Company may deem appropriate and as are not inconsistent
with the provisions of this Agreement, or as may be required to comply with any
law, or with any rule or regulation made pursuant thereto, or with any rule or
regulation of any stock exchange on which the Common Stock or the Warrants may
be listed or any automated quotation system, or to conform to usage. Each
Warrant Certificate shall entitle the registered holder thereof, subject to the
provisions of this Agreement and of the Warrant



                                       1


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Certificate, to purchase, on or after ____________, 2004 and on or before the
close of business on _________, 2009 (the "Expiration Date"), one fully paid and
non-assessable share of Common Stock for each Warrant evidenced by such Warrant
Certificate for $_____. The exercise price of the Warrants (the "Exercise
Price") is subject to adjustments as provided in Section 6 hereof. Each Warrant
Certificate issued as a part of a Unit offered to the public as described in the
recitals, above, shall be dated _____________, 2004; each other Warrant
Certificate shall be dated the date on which the Warrant Agent receives valid
issuance instructions from the Company or a transferring holder of a Warrant
Certificate or, if such instructions specify another date, such other date.

     (b) For purposes of this Agreement, the term "close of business" on any
given date shall mean 5:00 p.m., Eastern time, on such date; provided, however,
that if such date is not a business day, it shall mean 5:00 p.m., Eastern time,
on the next succeeding business day. For purposes of this Agreement, the term
"business day" shall mean any day other than a Saturday, Sunday, or a day on
which banking institutions in New York, New York or in the State in which the
Warrant Agent maintains the principal office in which it conducts business
related to the Warrants are authorized or obligated by law to be closed.

     (c) Each Warrant Certificate shall be executed on behalf of the Company by
the Chairman of the Board or its President or a Vice President, either manually
or by facsimile signature printed thereon, and have affixed thereto the
Company's seal or a facsimile thereof which shall be attested by the Secretary
or an Assistant Secretary of the Company, either manually or by facsimile
signature. Each Warrant Certificate shall be manually countersigned by the
Warrant Agent and shall not be valid for any purpose unless so countersigned. In
case any officer of the Company who shall have signed any Warrant Certificate
shall cease to be such officer of the Company before countersignature by the
Warrant Agent and issue and delivery thereof by the Company, such Warrant
Certificate, nevertheless, may be countersigned by the Warrant Agent, issued and
delivered with the same force and effect as though the person who signed such
Warrant Certificate had not ceased to be such officer of the Company.

   3. Subsequent Issue of Warrant Certificates. Subsequent to their original
issuance, no Warrant Certificates shall be reissued except (i) Warrant
Certificates issued upon transfer thereof in accordance with Section 4 hereof,
(ii) Warrant Certificates issued upon any combination, split-up or exchange of
Warrant Certificates pursuant to Section 4 hereof, (iii) Warrant Certificates
issued in replacement of mutilated, destroyed, lost or stolen Warrant
Certificates pursuant to Section 5 hereof, (iv) Warrant Certificates issued upon
the partial exercise of Warrant Certificates pursuant to Section 7 hereof, and
(v) Warrant Certificates issued to reflect any adjustment or change in the
Exercise Price or the number or kind of shares purchasable thereunder pursuant
to Section 22 hereof. The Warrant Agent is hereby irrevocably authorized to
countersign and deliver, in accordance with the provisions of said Sections 4,
5, 7 and 22, the new Warrant Certificates required for purposes thereof, and the
Company, whenever required by the Warrant Agent, will supply the Warrant Agent
with Warrant Certificates duly executed on behalf of the Company for such
purposes.

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<PAGE>

   4.    Transfers and Exchanges of Warrant Certificates.

     (a) The Warrant Agent will keep or cause to be kept books for registration
of ownership and transfer of the Warrant Certificates issued hereunder. Such
registers shall show the names and addresses of the respective holders of the
Warrant Certificates and the kind and number of Warrants evidenced by each such
Warrant Certificate.

     (b) The Warrant Agent shall, from time to time, register the transfer of
any outstanding Warrants upon the books to be maintained by the Warrant Agent
for that purpose, upon surrender of the Warrant Certificate evidencing such
Warrants, with the Form of Assignment duly filled in and executed with such
signature guaranteed by a banking institution or NASD member and such supporting
documentation as the Warrant Agent or the Company may reasonably require, to the
Warrant Agent at its stock transfer office in New York, New York at any time on
or before the Expiration Date of such Warrant, and upon payment to the Warrant
Agent for the account of the Company of an amount equal to any applicable
transfer tax. Payment of the amount of such tax may be made in cash, or by
certified or official bank check, payable in lawful money of the United States
of America to the order of the Company.

     (c) Upon receipt of a Warrant Certificate, with the Form of Assignment duly
filled in and executed, accompanied by payment of an amount equal to any
applicable transfer tax, the Warrant Agent shall promptly cancel the surrendered
Warrant Certificate and countersign and deliver to the transferee a new Warrant
Certificate for the number of full Warrants transferred to such transferee;
provided, however, that in case the registered holder of any Warrant Certificate
shall elect to transfer fewer than all of the Warrants evidenced by such Warrant
Certificate, the Warrant Agent in addition shall promptly countersign and
deliver to such registered holder a new Warrant Certificate or Certificates for
the number of full Warrants not so transferred.

     (d) Any Warrant Certificate or Certificates may be exchanged at the option
of the holder thereof for another Warrant Certificate or Certificates of
different denominations, of like tenor and representing in the aggregate the
same kind and number of Warrants, upon surrender of such Warrant Certificate or
Certificates, with the Form of Assignment duly filled in and executed, to the
Warrant Agent, at any time or from time to time after the close of business on
the date hereof and prior to the close of business on the Expiration Date
relating to such Warrant. The Warrant Agent shall promptly cancel the
surrendered Warrant Certificate and deliver the new Warrant Certificate pursuant
to the provisions of this Section.

   5. Mutilated, Destroyed, Lost or Stolen Warrant Certificates. Upon receipt by
the Company and the Warrant Agent of evidence reasonably satisfactory to them of
the loss, theft, destruction or mutilation of any Warrant Certificate, and in
the case of loss, theft or destruction, of indemnity or security reasonably
satisfactory to them, and reimbursement to them of all reasonable expenses
incidental thereto, and, in the case of mutilation, upon surrender and
cancellation of the Warrant Certificate, the Warrant Agent shall countersign and
deliver a new Warrant Certificate of like tenor for the same kind and number of
Warrants.

   6. Adjustments of Number and Kind of Shares Purchasable and Exercise Price.
The number and kind of securities or other property purchasable upon exercise of
a Warrant shall be


                                       3
<PAGE>

subject to adjustment from time to time upon the occurrence, after the date
hereof, of any of the following events:

     (a) In case the Company shall (1) pay a dividend in, or make a distribution
of, shares of capital stock on its outstanding Common Stock, (2) subdivide its
outstanding shares of Common Stock into a greater number of such shares or (3)
combine its outstanding shares of Common Stock into a smaller number of such
shares, the total number of shares of Common Stock purchasable upon the exercise
of each Warrant outstanding immediately prior thereto shall be adjusted so that
the holder of any Warrant Certificate thereafter surrendered for exercise shall
be entitled to receive at the same aggregate Exercise Price the number of shares
of capital stock (of one or more classes) which such holder would have owned or
have been entitled to receive immediately following the happening of any of the
events described above had such Warrant been exercised in full immediately prior
to the record date with respect to such event. Any adjustment made pursuant to
this Subsection shall, in the case of a stock dividend or distribution, become
effective as of the record date therefor and, in the case of a subdivision or
combination, be made as of the effective date thereof. If, as a result of an
adjustment made pursuant to this Subsection, the holder of any Warrant
Certificate thereafter surrendered for exercise shall become entitled to receive
shares of two or more classes of capital stock of the Company, the Board of
Directors of the Company (whose determination shall be conclusive and shall be
evidenced by a Board resolution filed with the Warrant Agent) shall determine
the allocation of the adjusted Exercise Price between or among shares of such
classes of capital stock.

     (b) In the event of a capital reorganization or a reclassification of the
Common Stock (except as provided in Subsection (a) above or Subsection (e)
below), any Warrantholder, upon exercise of Warrants, shall be entitled to
receive, in substitution for the Common Stock to which he would have become
entitled upon exercise immediately prior to such reorganization or
reclassification, the shares (of any class or classes) or other securities or
property of the Company (or cash) that he would have been entitled to receive at
the same aggregate Exercise Price upon such reorganization or reclassification
if such Warrants had been exercised immediately prior to the record date with
respect to such event; and in any such case, appropriate provision (as
determined by the Board of Directors of the Company, whose determination shall
be conclusive and shall be evidenced by a certified Board resolution filed with
the Warrant Agent) shall be made for the application of this Section 6 with
respect to the rights and interests thereafter of the Warrantholders (including
but not limited to the allocation of the Exercise Price between or among shares
of classes of capital stock), to the end that this Section 6 (including the
adjustments of the number of shares of Common Stock or other securities
purchasable and the Exercise Price thereof) shall thereafter be reflected, as
nearly as reasonably practicable, in all subsequent exercises of the Warrants
for any shares or securities or other property (or cash) thereafter deliverable
upon the exercise of the Warrants.

     (c) Whenever the number of shares of Common Stock or other securities
purchasable upon exercise of a Warrant is adjusted as provided in this Section
6, the Company will promptly file with the Warrant Agent a certificate signed by
a Chairman or co-Chairman of the Board or the President or a Vice President of
the Company and by the Treasurer or an Assistant Treasurer or the Secretary or
an Assistant Secretary of the Company setting forth the number and kind of
securities or other property purchasable upon exercise of a Warrant, as so
adjusted, stating that such adjustments in the number or kind of shares or other
securities or


                                       4

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property conform to the requirements of this Section 6, and setting forth a
brief statement of the facts accounting for such adjustments. Promptly after
receipt of such certificate, the Company, or the Warrant Agent at the Company's
request, will deliver, by first-class, postage prepaid mail, a brief summary
thereof (to be supplied by the Company) to the registered holders of the
outstanding Warrant Certificates; provided, however, that failure to file or to
give any notice required under this Subsection, or any defect therein, shall not
affect the legality or validity of any such adjustments under this Section 6;
and provided, further, that, where appropriate, such notice may be given in
advance and included as part of the notice required to be given pursuant to
Section 12 hereof.

     (d) In case of any consolidation of the Company with, or merger of the
Company into, another corporation (other than a consolidation or merger which
does not result in any reclassification or change of the outstanding Common
Stock), or in case of any sale or conveyance to another corporation of the
property of the Company as an entirety or substantially as an entirety, the
corporation formed by such consolidation or merger or the corporation which
shall have acquired such assets, as the case may be, shall execute and deliver
to the Warrant Agent a supplemental warrant agreement providing that the holder
of each Warrant then outstanding shall have the right thereafter (until the
expiration of such Warrant) to receive, upon exercise of such Warrant, solely
the kind and amount of shares of stock and other securities and property (or
cash) receivable upon such consolidation, merger, sale or transfer by a holder
of the number of shares of Common Stock of the Company for which such Warrant
might have been exercised immediately prior to such consolidation, merger, sale
or transfer. Such supplemental warrant agreement shall provide for adjustments
which shall be as nearly equivalent as may be practicable to the adjustments
provided in this Section. The above provision of this Subsection shall similarly
apply to successive consolidations, mergers, sales or transfers.

   The Warrant Agent shall not be under any responsibility to determine the
correctness of any provision contained in any such supplemental warrant
agreement relating to either the kind or amount of shares of stock or securities
or property (or cash) purchasable by holders of Warrant Certificates upon the
exercise of their Warrants after any such consolidation, merger, sale or
transfer or of any adjustment to be made with respect thereto, but subject to
the provisions of Section 20 hereof, may accept as conclusive evidence of the
correctness of any such provisions, and shall be protected in relying upon, a
certificate of a firm of independent certified public accountants (who may be
the accountants regularly employed by the Company) with respect thereto.

     (e) Irrespective of any adjustments in the number or kind of shares
issuable upon exercise of Warrants, Warrant Certificates theretofore or
thereafter issued may continue to express the same price and number and kind of
shares as are stated in the similar Warrant Certificates initially issuable
pursuant to this Warrant Agreement.

     (f) The Company may retain a firm of independent public accountants of
recognized standing, which may be the firm regularly retained by the Company,
selected by the Audit Committee of the Board of Directors of the Company, and
not disapproved by the Warrant Agent, to make any computation required under
this Section, and a certificate signed by such firm shall, in the absence of
fraud or gross negligence, be conclusive evidence of the correctness of any
computation made under this Section.

                                       5
<PAGE>

     (g) For the purpose of this Section, the term "Common Stock" shall mean (i)
the Common Stock or (ii) any other class of stock resulting from successive
changes or reclassifications of such Common Stock consisting solely of changes
in par value, or from par value to no par value, or from no par value to par
value. In the event that at any time as a result of an adjustment made pursuant
to this Section, the holder of any Warrant thereafter surrendered for exercise
shall become entitled to receive any shares of capital stock of the Company
other than shares of Common Stock, thereafter the number of such other shares so
receivable upon exercise of any Warrant shall be subject to adjustment from time
to time in a manner and on terms as nearly equivalent as practicable to the
provisions with respect to the Common Stock contained in this Section, and all
other provisions of this Agreement, with respect to the Common Stock, shall
apply on like terms to any such other shares.

     (h) The Company may, from time to time and to the extent permitted by law,
reduce the Exercise Price of the Warrants by any amount for a period of not less
than 20 days. If the Company so reduces the Exercise Price of such Warrants, it
will give not less than 15 days' notice of such decrease, which notice may be in
the form of a press release, and shall take such other steps as may be required
under applicable law in connection with any offers or sales of securities at the
reduced price.

   7. Exercise and Redemption of Warrants. Unless the Warrants have been
redeemed as provided in this Section 7, the registered holder of any Warrant
Certificate may exercise the Warrants evidenced thereby, in whole at any time or
in part from time to time at or prior to the close of business, on the
Expiration Date relating to such Warrant, subject to the provisions of Section
9, at which time the Warrant Certificates shall be and become wholly void and of
no value. Warrants may be exercised by their holders or redeemed by the Company
as follows:

     (a) Exercise of Warrants shall be accomplished upon surrender of the
Warrant Certificate evidencing such Warrants, with the Form of Election to
Purchase on the reverse side thereof duly filled in and executed, to the Warrant
Agent at its stock transfer office in New York, New York, together with payment
to the Company of the Exercise Price (as of the date of such surrender) of the
Warrants then being exercised and an amount equal to any applicable transfer tax
and, if requested by the Company, any other taxes or governmental charges which
the Company may be required by law to collect in respect of such exercise.
Payment of the Exercise Price and other amounts may be made by wire transfer of
good funds, or by certified or bank cashier's check, payable in lawful money of
the United States of America to the order of the Company. No adjustment shall be
made for any cash dividends, whether paid or declared, on any securities
issuable upon exercise of a Warrant.

     (b) Upon receipt of a Warrant Certificate, with the Form of Election to
Purchase duly filled in and executed, accompanied by payment of the Exercise
Price of the Warrants being exercised (and of an amount equal to any applicable
taxes or government charges as aforesaid), the Warrant Agent shall promptly
request from the Transfer Agent with respect to the securities to be issued and
deliver to or upon the order of the registered holder of such Warrant
Certificate, in such name or names as such registered holder may designate, a
certificate or certificates for the number of full shares of the securities to
be purchased, together with cash made available by the Company pursuant to
Section 8 hereof in respect of any fraction of a share of such securities
otherwise issuable upon such exercise. If the Warrant is then exercisable to



                                       6

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purchase property other than securities, the Warrant Agent shall take
appropriate steps to cause such property to be delivered to or upon the order of
the registered holder of such Warrant Certificate. In addition, if it is
required by law and upon instruction by the Company, the Warrant Agent will
deliver to each Warrantholder a prospectus which complies with the provisions of
Section 9 of the Securities Act of 1933, as amended, and the Company agrees to
supply Warrant Agent with sufficient number of prospectuses to effectuate that
purpose.

     (c) In case the registered holder of any Warrant Certificate shall exercise
fewer than all of the Warrants evidenced by such Warrant Certificate, the
Warrant Agent shall promptly countersign and deliver to the registered holder of
such Warrant Certificate, or to his duly authorized assigns, a new Warrant
Certificate or Certificates evidencing the number of Warrants that were not so
exercised.

     (d) Each person in whose name any certificate for securities is issued upon
the exercise of Warrants shall for all purposes be deemed to have become the
holder of record of the securities represented thereby as of, and such
certificate shall be dated, the date upon which the Warrant Certificate was duly
surrendered in proper form and payment of the Exercise Price (and of any
applicable taxes or other governmental charges) was made; provided, however,
that if the date of such surrender and payment is a date on which the stock
transfer books of the Company are closed, such person shall be deemed to have
become the record holder of such shares as of, and the certificate for such
shares shall be dated, the next succeeding business day on which the stock
transfer books of the Company are open (whether before, on or after the
Expiration Date relating to such Warrant) and the Warrant Agent shall be under
no duty to deliver the certificate for such shares until such date. The Company
covenants and agrees that it shall not cause its stock transfer books to be
closed for a period of more than 20 consecutive business days except upon
consolidation, merger, sale of all or substantially all of its assets,
dissolution or liquidation or as otherwise provided by law.

     (e) Beginning on ____________, 2004, the Warrants outstanding at the time
of a redemption may be redeemed at the option of the Company, in whole or in
part on a pro-rata basis, by giving not less than 30 days prior notice as
provided in Section 7(f) below, which notice may not be give before, but may be
given at any time after, the closing price of the Common Stock on the principal
exchange on which it is then traded has equaled or exceeded $______ per share on
each of five consecutive trading days that occur subsequent to the date of this
Warrant Agreement. The price at which Warrants may be redeemed (the "Redemption
Price") is $0.25 per Warrant. On and after the redemption date the holders of
record of redeemed Warrants shall be entitled to payment of the Redemption Price
upon surrender of such redeemed Warrants to the Company at the office of the
Warrant Agent designated for that purpose.

     (f) Notice of redemption of Warrants shall be given at least 30 days prior
to the redemption date by mailing, by registered or certified mail, return
receipt requested, a copy of such notice to the Warrant Agent and to all of the
holders of record of Warrants at their respective addresses appearing on the
books or transfer records of the Company or such other address designated in
writing by the holder of record to the Warrant Agent not less than 40 days prior
to the redemption date.

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<PAGE>

     (g) From and after the redemption date, all rights of the Warrantholders
(except the right to receive the Redemption Price) shall terminate, but only if
(i) no later than one day prior to the redemption date the Company shall have
irrevocably deposited with the Warrant Agent as paying agent a sufficient amount
to pay on the redemption date the Redemption Price for all Warrants called for
redemption and (ii) the notice of redemption shall have stated the name and
address of the Warrant Agent and the intention of the Company to deposit such
amount with the Warrant Agent no later than one day prior to the redemption
date.

     (h) On the Redemption Date, the Warrant Agent shall pay to the holders of
record of redeemed Warrants all monies received by the Warrant Agent for the
redemption of Warrants to which the holders of record of such redeemed Warrants
who shall have surrendered their Warrants are entitled. The Warrant Agent shall
have no obligation to pay for the redemption of the warrants except to the
extent that funds for such payment have been provided to it by the Company.

     (i) Any amounts deposited with the Warrant Agent that are not required for
redemption of Warrants may be withdrawn by the Company. Any amounts deposited
with the Warrant Agent that shall be unclaimed after six months after the
redemption date shall be redelivered back to the Company, and thereafter the
holders of the Warrants called for redemption for which such funds were
deposited shall look solely to the Company for payment. The Company shall be
entitled to the interest, if any, on funds deposited with the Warrant Agent and
the holders of redeemed Warrants shall have no right to any such interest. At
the instruction of the Company, the Warrant agent shall deposit or invest any
and all funds deposited with it by the Company in connection with any redemption
in federally insured, interest bearing accounts with a financial institution or
institutions designated by the Company but shall have no liability with respect
to the performance of any such investments other than, in the case of funds
deposited in accounts maintained by the Warrant Agent, the liability of the
Warrant Agent to its depositors in such accounts, generally.

     (j) If the Company fails to make a sufficient deposit with the Warrant
Agent as provided above, the holder of any Warrants called for redemption may at
the option of the holder (i) by notice to the Company declare the notice of
redemption a nullity as to such holder, or (ii) maintain an action against the
Company for the Redemption Price. If the holder brings such an action, the
Company will pay reasonable attorneys' fees of the holder. If the holder fails
to bring an action against the Company for the Redemption Price within 60 days
after the redemption date, the holder shall be deemed to have elected to declare
the notice of redemption to be a nullity as to such holder and such notice shall
be without any force or effect as to such holder. Except as otherwise
specifically provided in this Paragraph 7(j), a notice of redemption, once
mailed by the Company as provided in Paragraph F, shall be irrevocable.

     (k) The Company may not give a notice of redemption of Warrants under this
Section 7 unless the underlying shares are covered by an effective registration
statement. Additionally, an effective registration statement must be in place
for at least 30 calendar days after mailing of the notice of redemption before
the redemption may be effected. Consequently, if an effective registration
statement covering the underlying shares is in place at the time that the
Company mails its notice of redemption, but, during the notice period, the
registration statement ceases to be in effect (or is suspended), then the notice
period will automatically be extended for


                                       8


<PAGE>


that number of calendar days equal to the number of calendar days of cessation
(or suspension), unless waived in writing by the warrant holder.

     8. Fractional Interests. The Company shall not be required to issue any
Warrant Certificate evidencing a fraction of a Warrant or to issue fractions of
shares of securities on the exercise of the Warrants. If any fraction
(calculated to the nearest one-hundredth) of a Warrant or a share of securities
would, except for the provisions of this Section, be issuable on the exercise of
any Warrant, the Company shall, at its option, either purchase such fraction for
an amount in cash equal to the current value of such fraction computed on the
basis of the closing market price (as quoted on the American Stock Exchange) on
the trading day immediately preceding the day upon which such Warrant
Certificate was surrendered for exercise in accordance with Section 7 hereof or
issue the required fractional Warrant or share. By accepting a Warrant
Certificate, the holder thereof expressly waives any right to receive a Warrant
Certificate evidencing any fraction of a Warrant or to receive any fractional
share of securities upon exercise of a Warrant.

     9. Reservation of Equity Securities. The Company covenants that it will at
all times reserve and keep available, free from any pre-emptive rights, out of
its authorized and unissued equity securities, solely for the purpose of issue
upon exercise of the Warrants, such number of shares of equity securities of the
Company as shall then be issuable upon the exercise of all outstanding Warrants
("Equity Securities"). The Company covenants that all Equity Securities which
shall be so issuable shall, upon such issue, be duly authorized, validly issued,
fully paid and non-assessable.

      The Company covenants that if any equity securities, required to be
reserved for the purpose of issue upon exercise of the Warrants hereunder,
require registration with or approval of any governmental authority under any
federal or state law before such shares may be issued upon exercise of
Warrants, the Company will use all commercially reasonable efforts to cause
such securities to be duly registered, or approved, as the case may be, and,
to the extent practicable, take all such action in anticipation of and prior
to the exercise of the Warrants, including, without limitation, filing any
and all post-effective amendments to the Company's Registration Statement on
Form S-2 (Registration No. 333-110376) necessary to permit a public offering
of the securities underlying the Warrants at any and all times during the
term of this Agreement, provided, however, that in no event shall such
securities be issued, and the Company is authorized to refuse to honor the
exercise of any Warrant, if such exercise would result in the opinion of the
Company's Board of Directors, upon advice of counsel, in the violation of any
law; and provided further that, in the case of a Warrant exercisable solely
for securities listed on a securities exchange or for which there are at
least three independent market makers, in lieu of obtaining such registration
or approval, the Company may elect to redeem Warrants submitted to the
Warrant Agent for exercise for a price equal to the difference between the
aggregate low asked price, or closing price, as the case may be, of the
securities for which such Warrant is exercisable on the date of such
submission and the Exercise Price of such Warrants; in the event of such
redemption, the Company will pay to the holder of such Warrants the
above-described redemption price in cash within 10 business days after
receipt of notice from the Warrant Agent that such Warrants have been
submitted for exercise.

                                       9
<PAGE>

     10. Reduction of Conversion Price Below Par Value. Before taking any action
that would cause an adjustment pursuant to Section 6 hereof reducing the portion
of the Exercise Price required to purchase one share of capital stock below the
then par value (if any) of a share of such capital stock, the Company will use
its best efforts to take any corporate action which, in the opinion of its
counsel, may be necessary in order that the Company may validly and legally
issue fully paid and non-assessable shares of such capital stock.

     11. Payment of Taxes. The Company covenants and agrees that it will pay
when due and payable any and all federal and state documentary, stamp and other
original issue taxes which may be payable in respect of the original issuance of
the Warrant Certificates, or any shares of Common Stock or other securities upon
the exercise of Warrants. The Company shall not, however, be required (a) to pay
any tax which may be payable in respect of any transfer involved in the transfer
and delivery of Warrant Certificates or the issuance or delivery of certificates
for Common Stock or other securities in a name other than that of the registered
holder of the Warrant Certificate surrendered for purchase or (b) to issue or
deliver any certificate for shares of Common Stock or other securities upon the
exercise of any Warrant Certificate until any such tax shall have been paid, all
such tax being payable by the holder of such Warrant Certificate at the time of
surrender.

     12. Notice of Certain Corporate Action. In case the Company after the date
hereof shall propose (a) to offer to the holders of Common Stock, generally,
rights to subscribe to or purchase any additional shares of any class of its
capital stock, any evidences of its indebtedness or assets, or any other rights
or options or (b) to effect any reclassification of Common Stock (other than a
reclassification involving merely the subdivision or combination of outstanding
shares of Common Stock) or any capital reorganization, or any consolidation or
merger to which the Company is a party and for which approval of any
stockholders of the Company is required, or any sale, transfer or other
disposition of its property and assets substantially as an entirety, or the
liquidation, voluntary or involuntary dissolution or winding-up of the Company,
then, in each such case, the Company shall file with the Warrant Agent and the
Company, or the Warrant Agent on its behalf, shall mail (by first-class, postage
prepaid mail) to all registered holders of the Warrant Certificates notice of
such proposed action, which notice shall specify the date on which the books of
the Company shall close or a record be taken for such offer of rights or
options, or the date on which such reclassification, reorganization,
consolidation, merger, sale, transfer, other disposition, liquidation, voluntary
or involuntary dissolution or winding-up shall take place or commence, as the
case may be, and which shall also specify any record date for determination of
holders of Common Stock entitled to vote thereon or participate therein and
shall set forth such facts with respect thereto as shall be reasonably necessary
to indicate any adjustments in the Exercise Price and the number or kind of
shares or other securities purchasable upon exercise of Warrants which will be
required as a result of such action. Such notice shall be filed and mailed in
the case of any action covered by clause (a) above, at least ten days prior to
the record date for determining holders of the Common Stock for purposes of such
action or, if a record is not to be taken, the date as of which the holders of
shares of Common Stock of record are to be entitled to such offering; and, in
the case of any action covered by clause (b) above, at least 20 days prior to
the earlier of the date on which such reclassification, reorganization,
consolidation, merger, sale, transfer, other disposition, liquidation, voluntary
or involuntary dissolution or winding-up is expected to become effective and the
date on which it is expected that holders of shares of Common Stock of record on
such date shall be entitled to


                                       10

<PAGE>


exchange their shares for securities or other property deliverable upon such
reclassification, reorganization, consolidation, merger, sale, transfer, other
disposition, liquidation, voluntary or involuntary dissolution or winding-up.

      Failure to give any such notice or any defect therein shall not affect
the legality or validity of any transaction listed in this Section 12.

   13. Disposition of Proceeds on Exercise of Warrant Certificates, etc. The
Warrant Agent shall account promptly to the Company with respect to Warrants
exercised and concurrently pay to the Company all moneys received by the Warrant
Agent for the purchase of securities or other property through the exercise of
such Warrants.

   The Warrant Agent shall keep copies of this Agreement available for
inspection by Warrantholders during normal business hours at its stock transfer
office. Copies of this Agreement may be obtained upon written request addressed
to the Warrant Agent at its stock transfer office in New York, New York.

   14. Warrantholder Not Deemed a Stockholder. No Warrantholder, as such, shall
be entitled to vote, receive dividends or be deemed the holder of Common Stock
or any other securities of the Company which may at any time be issuable on the
exercise of the Warrants represented thereby for any purpose whatever, nor shall
anything contained herein or in any Warrant Certificate be construed to confer
upon any Warrantholder, as such, any of the rights of a stockholder of the
Company or any right to vote for the election of directors or upon any matter
submitted to stockholders at any meeting thereof, or to give or withhold consent
to any corporate action (whether upon any recapitalization, issuance of stock,
reclassification of stock, change of par value or change of stock to no par
value, consolidation, merger, conveyance or otherwise), or to receive notice of
meetings or other actions affecting stockholders (except as provided in Section
12 hereof), or to receive dividend or subscription rights, or otherwise, until
such Warrant Certificate shall have been exercised in accordance with the
provisions hereof and the receipt of the Exercise Price and any other amounts
payable upon such exercise by the Warrant Agent.

   15. Right of Action. All rights of action in respect to this Agreement are
vested in the respective registered holders of the Warrant Certificates; and any
registered holder of any Warrant Certificate, without the consent of the Warrant
Agent or of any other holder of a Warrant Certificate, may, in his own behalf
for his own benefit, enforce, and may institute and maintain any suit, action or
proceeding against the Company suitable to enforce, or otherwise in respect of,
his right to exercise the Warrants evidenced by such Warrant Certificate, for
the purchase of shares of the Common Stock in the manner provided in the Warrant
Certificate and in this Agreement.

   16. Agreement of Holders of Warrant Certificates. Every holder of a Warrant
Certificate by accepting the same consents and agrees with the Company, the
Warrant Agent and with every other holder of a Warrant Certificate that:

     (a) the Warrant Certificates are transferable on the registry books of the
Warrant Agent only upon the terms and conditions set forth in this Agreement;
and

                                       11

<PAGE>

     (b) the Company and the Warrant Agent may deem and treat the person in
whose name the Warrant Certificate is registered as the absolute owner of the
Warrant (notwithstanding any notation of ownership or other writing thereon made
by anyone other than the Company or the Warrant Agent) for all purposes whatever
and neither the Company nor the Warrant Agent shall be affected by any notice to
the contrary.

     17. Cancellation of Warrant Certificates. In the event that the Company
shall purchase or otherwise acquire any Warrant Certificate or Certificates
after the issuance thereof, such Warrant Certificate or Certificates shall
thereupon be delivered to the Warrant Agent and be canceled by it and retired.
The Warrant Agent shall also cancel any Warrant Certificate delivered to it for
exercise, in whole or in part, or delivered to it for transfer, split-up,
combination or exchange. Warrant Certificates so canceled shall be delivered by
the Warrant Agent to the Company from time to time, or disposed of in accordance
with the instructions of the Company.

     18. Concerning the Warrant Agent. The Company agrees to pay to the Warrant
Agent from time to time, on demand of the Warrant Agent, reasonable compensation
for all services rendered by it hereunder and also its reasonable expenses,
including counsel fees, and other disbursements incurred in the administration
and execution of this Agreement and the exercise and performance of its duties
hereunder. The Company also agrees to indemnify the Warrant Agent for, and to
hold it harmless against, any loss, liability or expense, incurred without gross
negligence, bad faith or willful misconduct on the part of the Warrant Agent,
arising out of or in connection with the acceptance and administration of this
Agreement.

     19. Merger or Consolidation or Change of Name of Warrant Agent. Any
corporation into which the Warrant Agent may be merged or with which it may be
consolidated, or any corporation resulting from any merger or consolidation to
which the Warrant Agent shall be a party, or any corporation succeeding to the
corporate trust business of the Warrant Agent, shall be the successor to the
Warrant Agent hereunder without the execution or filing of any paper or any
further act on the part of any of the parties hereto, provided that such
corporation would be eligible for appointment as a successor warrant agent under
the provisions of Section 21 hereof. In case at the time such successor to the
Warrant Agent shall succeed to the agency created by this Agreement, any of the
Warrant Certificates shall have been countersigned but not delivered, any such
successor to the Warrant Agent may adopt the countersignature of the original
Warrant Agent and deliver such Warrant Certificates so countersigned; and in
case at that time any of the Warrant Certificates shall not have been
countersigned, any successor to the Warrant Agent may countersign such Warrant
Certificates either in the name of the predecessor Warrant Agent or in the name
of the successor Warrant Agent; and in all such cases such Warrant Certificates
shall have the full force provided in the Warrant Certificates and in this
Agreement.

      In case at any time the name of the Warrant Agent shall be changed and
at such time any of the Warrant Certificates shall have been countersigned
but not delivered, the Warrant Agent may adopt the countersignature under its
prior name and deliver Warrant Certificates so countersigned; and in case at
that time any of the Warrant Certificates shall not have been countersigned,
the Warrant Agent may countersign such Warrant Certificates either in its
prior name or in its changed name; and in all such cases such Warrant
Certificates shall have the full force provided in the Warrant Certificates
and in this Agreement.

                                       12
<PAGE>

   20. Duties of Warrant Agent. The Warrant Agent undertakes the duties and
obligations imposed by this Agreement upon the following terms and conditions,
by all of which the Company and the holders of Warrant Certificates, by their
acceptance thereof, shall be bound:

     (a) The Warrant Agent may consult with counsel satisfactory to it (who may
be counsel for the Company), and the opinion of such counsel shall be full and
complete authorization and protection to the Warrant Agent as to any action
taken, suffered or omitted by it in good faith and in accordance with such
opinion; provided, however, that the Warrant Agent shall have exercised
reasonable care in the selection of such counsel. Fees and expenses of such
counsel, to the extent reasonable, shall be paid by the Company.

     (b) Whenever in the performance of its duties under this Agreement, the
Warrant Agent shall deem it necessary or desirable that any fact or matter be
proved or established by the Company prior to taking or suffering any action
hereunder, such fact or matter (unless other evidence in respect thereof be
herein specifically prescribed) may be deemed to be conclusively proved and
established by a certificate signed by a Chairman or co-Chairman of the Board or
the President or a Vice President or the Secretary of the Company and delivered
to the Warrant Agent; and such certificate shall be full authorization to the
Warrant Agent for any action taken or suffered in good faith by it under the
provisions of this Agreement in reliance upon such certificate.

     (c) The Warrant Agent shall be liable hereunder only for its own gross
negligence, bad faith or willful misconduct.

     (d) The Warrant Agent shall not be liable for or by reason of any of the
statements of fact or recitals contained in this Agreement or in the Warrant
Certificates (except its countersignature on the Warrant Certificates and such
statements or recitals as describe the Warrant Agent or action taken or to be
taken by it) or be required to verify the same, but all such statements and
recitals are and shall be deemed to have been made by the Company only.

     (e) The Warrant Agent shall not be under any responsibility in respect of
the validity of this Agreement or the execution and delivery hereof (except the
due execution hereof by the Warrant Agent) or in respect of the validity or
execution of any Warrant Certificate (except its countersignature thereof); nor
shall it be responsible for any breach by the Company of any covenant or
condition contained in this Agreement or in any Warrant Certificate; nor shall
it be responsible for the making of any change in the number of shares of Common
Stock for which a Warrant is exercisable required under the provisions of
Section 6 or responsible for the manner, method or amount of any such change or
the ascertaining of the existence of facts that would require any such
adjustment or change (except with respect to the exercise of Warrant
Certificates after actual notice of any adjustment of the Exercise Price); nor
shall it by any act hereunder be deemed to make any representation or warranty
as to the authorization or reservation of any shares of Common Stock to be
issued pursuant to this Agreement or any Warrant Certificate or as to whether
any shares of Common Stock will, when issued, be validly issued, fully paid and
non-assessable.

                                       13
<PAGE>

     (f) The Warrant Agent shall be under no obligation to institute any action,
suit or legal proceeding or take any other action likely to involve expense
unless the Company or one or more registered holders of Warrant Certificates
shall furnish the Warrant Agent with reasonable security and indemnity for any
costs and expenses which may be incurred. All rights of action under this
Agreement or under any of the Warrants may be enforced by the Warrant Agent
without the possession of any of the Warrants or the production thereof at any
trial or other proceeding relative thereto, and any such action, suit or
proceeding instituted by the Warrant Agent shall be brought in its name as
Warrant Agent, and any recovery of judgment shall be for the ratable benefit of
the registered holders of the Warrant Certificates, as their respective rights
or interests may appear.

     (g) The Warrant Agent and any stockholder, director, officer or employee of
the Warrant Agent may buy, sell or deal in any of the Warrants or other
securities of the Company or become pecuniarily interested in any transaction in
which the Company may be interested, or contract with or lend money to or
otherwise act as fully and freely as though it were not Warrant Agent under this
Agreement. Nothing herein shall preclude the Warrant Agent from acting in any
other capacity for the Company or for any other legal entity.

     (h) The Warrant Agent is hereby authorized and directed to accept
instructions with respect to the performance of its duties hereunder from a
Chairman or co-Chairman of the Board or President or a Vice President or the
Secretary or the Controller of the Company, and to apply to such officers for
advice or instructions in connection with the Warrant Agent's duties, and it
shall not be liable for any action taken or suffered or omitted by it in good
faith in accordance with instructions of any such officer.

     (i) The Warrant Agent will not be responsible for any failure of the
Company to comply with any of the covenants contained in this Agreement or in
the Warrant Certificates to be complied with by the Company.

     (j) The Warrant Agent may execute and exercise any of the rights or powers
hereby vested in it or perform any duty hereunder either itself or by or through
its attorneys, agents or employees and the Warrant Agent shall not be answerable
or accountable for any act, default, neglect or misconduct of any such
attorneys, agents or employees or for any loss to the Company resulting from
such neglect or misconduct; provided, however, that reasonable care shall have
been exercised in the selection and continued employment of such attorneys,
agents and employees.

     (k) The Warrant Agent will not incur any liability or responsibility to the
Company or to any holder of any Warrant Certificate for any action taken, or any
failure to take action, in reliance on any notice, resolution, waiver, consent,
order, certificate, or other paper, document or instrument reasonably believed
by the Warrant Agent to be genuine and to have been signed, sent or presented by
the proper party or parties.

     (l) The Warrant Agent will act hereunder solely as agent of the Company in
a ministerial capacity, and its duties will be determined solely by the
provisions hereof. The Warrant Agent will not be liable for anything which it
may do or refrain from doing in connection with this Agreement except for its
own gross negligence, bad faith or willful conduct.

                                       14
<PAGE>

   21. Change of Warrant Agent. The Warrant Agent may resign and be discharged
from its duties under this Agreement upon 30 days' prior notice in writing
mailed, by registered or certified mail, to the Company. The Company may remove
the Warrant Agent or any successor warrant agent upon 30 days' prior notice in
writing, mailed to the Warrant Agent or successor warrant agent, as the case may
be, by registered or certified mail. If the Warrant Agent shall resign or be
removed or shall otherwise become incapable of acting, the Company shall appoint
a successor to the Warrant Agent and shall, within 15 days following such
appointment, give notice thereof in writing to each registered holder of the
Warrant Certificates. If the Company shall fail to make such appointment within
a period of 15 days after giving notice of such removal or after it has been
notified in writing of such resignation or incapacity by the resigning or
incapacitated Warrant Agent, then the Company agrees to perform the duties of
the Warrant Agent hereunder until a successor Warrant Agent is appointed. After
appointment and execution of a copy of this Agreement in effect at that time,
the successor Warrant Agent shall be vested with the same powers, rights, duties
and responsibilities as if it had been originally named as Warrant Agent without
further act or deed; but the former Warrant Agent shall deliver and transfer to
the successor Warrant Agent, within a reasonable time, any property at the time
held by it hereunder, and execute and deliver any further assurance, conveyance,
act or deed necessary for the purpose. Failure to give any notice provided for
in this Section, however, or any defect therein shall not affect the legality or
validity of the resignation or removal of the Warrant Agent or the appointment
of the successor warrant agent, as the case may be.

   22. Issuance of New Warrant Certificates. Notwithstanding any of the
provisions of this Agreement or the several Warrant Certificates to the
contrary, the Company may, at its option, issue new Warrant Certificates in such
form as may be approved by its Board of Directors to reflect any adjustment or
change in the Exercise Price or the number or kind of shares purchasable under
the several Warrant Certificates made in accordance with the provisions of this
Agreement.

   23. Notices. Notice or demand pursuant to this Agreement to be given or made
on the Company by the Warrant Agent or by the registered holder of any Warrant
Certificate shall be sufficiently given or made if sent by first-class or
registered mail, postage prepaid, addressed (until another address is filed in
writing by the Company with the Warrant Agent) as follows:

    Milestone Scientific Inc.
    220 South Orange Ave.
    Livingston, New Jersey 07039
    Attention:  President

    Subject to the provisions of Section 21, any notice pursuant to this
Agreement to be given or made by the Company or by the holder of any Warrant
Certificate to or on the Warrant Agent shall be sufficiently given or made if
sent by first-class or registered mail, postage prepaid, addressed (until
another address is filed in writing by the Warrant Agent with the Company) as
follows:

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

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

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

                                       15
<PAGE>

   Any notice or demand authorized to be given or made to the registered holder
of any Warrant Certificate under this Agreement shall be sufficiently given or
made if sent by first-class or registered mail, postage prepaid, to the last
address of such holder as it shall appear on the registers maintained by the
Warrant Agent.

   24. Modification of Agreement. The Warrant Agent may, without the consent or
concurrence of the Warrantholders, by supplemental agreement or otherwise,
concur with the Company in making any changes or corrections in this Agreement
that the Warrant Agent shall have been advised by counsel (who may be counsel
for the Company) are necessary or desirable to cure any ambiguity or to correct
any defective or inconsistent provision or clerical omission or mistake or
manifest error herein contained, or to make any other provisions in regard to
matters or questions arising hereunder and which shall not be inconsistent with
the provisions of the Warrant Certificates and which shall not adversely affect
the interests of the Warrantholders. As of the date hereof, this Agreement
contains the entire and only agreement, understanding, representation,
condition, warranty or covenant between the parties hereto with respect to the
matters herein, supersedes any and all other agreements between the parties
hereto relating to such matters, and may be modified or amended only by a
written agreement signed by both parties hereto pursuant to the authority
granted by the first sentence of this Section.

   25. Successors. All the covenants and provisions of this Agreement by or for
the benefit of the Company or the Warrant Agent shall bind and inure to the
benefit of their respective successors and assigns hereunder.

   26. Governing Law. This Agreement and each Warrant Certificate issued
hereunder shall be deemed to be a contract made under the laws of the State of
New York, and for all purposes shall be construed in accordance with the laws of
said State. All disputes relating to this Agreement and each Warrant Certificate
issued hereunder shall be adjudicated in a court located in New York, New York
to the exclusion of all other courts that might have jurisdiction.

   27. Termination. This Agreement shall terminate as of the close of business
on the Expiration Date, or such earlier date upon which all Warrants shall have
been exercised or redeemed, except that the Warrant Agent shall account to the
Company as to all Warrants outstanding and all cash held by it as of the close
of business on the Expiration Date.

   28. Benefits of this Agreement. Nothing in this Agreement or in the Warrant
Certificates shall be construed to give to any person or corporation other than
the Company, the Warrant Agent, and their respective successors and assigns
hereunder and the registered holders of the Warrant Certificates any legal or
equitable right, remedy or claim under this Agreement; but this Agreement shall
be for the sole and exclusive benefit of the Company, the Warrant Agent, their
respective successors and assigns hereunder and the registered holders of the
Warrant Certificates.

   29. Descriptive Headings. The descriptive headings of the several Sections of
this Agreement are inserted for convenience only and shall not control or affect
the meaning or construction of any of the provisions hereof.

                                       16
<PAGE>

   30. Counterparts. This Agreement may be executed in any number of
counterparts, each of which shall be an original, but such counterparts shall
together constitute one and the same instrument.


      (Remainder of page intentionally left blank; signature page follows)


                                       17
<PAGE>


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


                                    MILESTONE SCIENTIFIC INC.


                                    By: ______________________________________
                                        Name:
                                        Title:


                                    CONTINENTAL STOCK TRANSFER & TRUST COMPANY


                                    By: ______________________________________
                                        Name:
                                        Title:


                                       18
<PAGE>


                                  Exhibit A


          VOID AFTER 5 P.M. PACIFIC TIME ON _________________, 2009

                      WARRANTS TO PURCHASE COMMON STOCK


No. MSW-_____                                               _________ Warrants


                          Milestone Scientific Inc.

                              CUSIP ___________


THIS CERTIFIES THAT




or registered assigns, is the registered holder of the number of Warrants
("Warrants") set forth above.  Each Warrant, unless and until redeemed by the
Company as provided in the Warrant Agreement, hereinafter more fully
described (the "Warrant Agreement") entitles the holder thereof to purchase
from Milestone Scientific Inc., a corporation incorporated under the laws of
the State of Delaware (the "Company"), subject to the terms and conditions
set forth hereinafter and in the Warrant Agreement, at any time on or after
___________, 2004 and before the close of business on ________, 2009
("Expiration Date"), one fully paid and non-assessable share of Common Stock,
par value $0.001 per share, of the Company ("Common Stock") upon presentation
and surrender of this Warrant Certificate, with the instructions for the
registration and delivery of Common Stock filled in, at the stock transfer
office in New York, New York, of Continental Stock Transfer & Trust Company,
Warrant Agent of the Company ("Warrant Agent") or of its successor warrant
agent or, if there be no successor warrant agent, at the corporate offices of
the Company, and upon payment of the Exercise Price (as defined in the
Warrant Agreement) and any applicable taxes paid either in cash, or by
certified or official bank check, payable in lawful money of the United
States of America to the order of the Company. Each Warrant initially
entitles the holder to purchase one share of Common Stock for $____.  The
number and kind of securities or other property for which the Warrants are
exercisable are subject to adjustment in certain events, such as mergers,
splits, stock dividends, splits and the like, to prevent dilution.  Beginning
on _____________, 2004, the Company may redeem any or all outstanding and
unexercised warrants by giving not less than 30 days prior notice at any time
after the closing price of the Common Stock on the principal exchange on
which it is traded has equaled or exceeded $______ per share on each of five
consecutive trading days subsequent to _________, 2004.  The Redemption Price
is $0.25 per Warrant (subject to adjustment in the event of a stock split,
dividend or the like).  All Warrants not theretofore exercised will expire on
the Expiration Date.

                                       1
<PAGE>

      This Warrant Certificate is subject to all of the terms, provisions and
conditions of the Warrant Agreement, dated as of ________________, 2004,
between the Company and the Warrant Agent, to all of which terms, provisions
and conditions the registered holder of this Warrant Certificate consents by
acceptance hereof.  The Warrant Agreement is incorporated herein by reference
and made a part hereof and reference is made to the Warrant Agreement for a
full description of the rights, limitations of rights, obligations, duties
and immunities of the Warrant Agent, the Company and the holders of the
Warrant Certificates.  Copies of the Warrant Agreement are available for
inspection at the stock transfer office of the Warrant Agent or may be
obtained upon written request addressed to the Company at Milestone
Scientific Inc., 220 South Orange Ave., Livingston, New Jersey 07039,
Attention: President.

      The Company shall not be required upon the exercise of the Warrants
evidenced by this Warrant Certificate to issue fractions of Warrants, Common
Stock or other securities, but shall make adjustment therefor in cash on the
basis of the current market value of any fractional interest as provided in
the Warrant Agreement.

      In certain cases, the sale of securities by the Company upon exercise
of Warrants may violate the securities laws of the United States, certain
states thereof or other jurisdictions.  The Company has agreed to use all
commercially reasonable efforts to cause a registration statement to continue
to be effective during the term of the Warrants with respect to such sales
under the Securities Act of 1933, and to take such action under the laws of
various states as may be required to cause the sale of securities upon
exercise to be lawful.  However, the Company will not be required to honor
the exercise of Warrants if, in the opinion of the Board of Directors, upon
advice of counsel, the sale of securities upon such exercise would be
unlawful.  In certain cases, the Company may, but is not required to,
purchase Warrants submitted for exercise for a cash price equal to the
difference between the market price of the securities obtainable upon such
exercise and the exercise price of such Warrants.

      This Warrant Certificate, with or without other Certificates, upon
surrender to the Warrant Agent, any successor warrant agent or, in the
absence of any successor warrant agent, at the corporate offices of the
Company, may be exchanged for another Warrant Certificate or Certificates
evidencing in the aggregate the same number of Warrants as the Warrant
Certificate or Certificates so surrendered.  If the Warrants evidenced by
this Warrant Certificate shall be exercised in part, the holder hereof shall
be entitled to receive upon surrender hereof another Warrant Certificate or
Certificates evidencing the number of Warrants not so exercised.

      No holder of this Warrant Certificate, as such, shall be entitled to
vote, receive dividends or be deemed the holder of Common Stock or any other
securities of the Company which may at any time be issuable on the exercise
hereof for any purpose whatsoever, nor shall anything contained in the
Warrant Agreement or herein be construed to confer upon the holder of this
Warrant Certificate, as such, any of the rights of a stockholder of the
Company or any right to vote for the election of directors or upon any matter
submitted to stockholders at any meeting thereof or give or withhold consent
to any corporate action (whether upon any matter submitted to stockholders at
any meeting thereof, or give or withhold consent to any merger,
recapitalization, issuance of stock, reclassification of stock, change of par
value or change of stock to no par value, consolidation, conveyance or
otherwise) or to receive notice of meetings or


                                       2


<PAGE>

other actions affecting stockholders (except as provided in the Warrant
Agreement) or to receive dividends or subscription rights or otherwise until the
Warrants evidenced by this Warrant Certificate shall have been exercised and the
Common Stock purchasable upon the exercise thereof shall have become deliverable
as provided in the Warrant Agreement.

      If this Warrant Certificate shall be surrendered for exercise within
any period during which the transfer books for the Company's Common Stock or
other class of stock purchasable upon the exercise of the Warrants evidenced
by this Warrant Certificate are closed for any purpose, the Company shall not
be required to make delivery of certificates for shares purchasable upon such
transfer until the date of the reopening of said transfer books.

      Every holder of this Warrant Certificate by accepting the same consents
and agrees with the Company, the Warrant Agent, and with every other holder
of a Warrant Certificate that:

      (a)  this Warrant Certificate is transferable on the registry books of
the Warrant Agent only upon the terms and conditions set forth in the Warrant
Agreement, and

      (b)  the Company and the Warrant Agent may deem and treat the person in
whose name this Warrant Certificate is registered as the absolute owner
hereof (notwithstanding any notation of ownership or other writing thereon
made by anyone other than the Company or the Warrant Agent) for all purposes
whatsoever and neither the Company nor the Warrant Agent shall be affected by
any notice to the contrary.  The Company shall not be required to issue or
deliver any certificate for shares of Common Stock or other securities upon
the exercise of Warrants evidenced by this Warrant Certificate until any tax
which may be payable in respect thereof by the holder of this Warrant
Certificate pursuant to the Warrant Agreement shall have been paid, such tax
being payable by the holder of this Warrant Certificate at the time of
surrender.

      This Warrant Certificate shall not be valid or obligatory for any
purpose until it shall have been countersigned by the Warrant Agent.



     (Remainder of page intentionally left blank; signature page follows)

                                       3

<PAGE>


      WITNESS the facsimile signatures of the proper officers of the Company
and its corporate seal.

Dated: _______________

                                    MILESTONE SCIENTIFIC INC.


                                    By: ______________________________________
                                        Name:
                                        Title:



                                    Attest:
                                    -----------------------------------
                                           Secretary

Countersigned:

Continental Stock Transfer & Trust Company
Warrant Agent and Registrar
17 Battery Place
New York, NY  10004


By: ______________________________________
    Authorized Officer



                                       4