EXHIBIT 5.4


                    [Letterhead of Matheson Ormsby Prentice]


Teva Pharmaceuticals Finance Ireland Limited
30 Herbert Street
Dublin 2

Teva Pharmaceutical Industries Limited
5 Basel Street
PO Box 3190
Petach Tikva
49131 Israel

Our Ref                           Your Ref                      12 December 2003
TD 617515/14

Dear Sirs

TEVA PHARMACEUTICALS FINANCE IRELAND LIMITED

We have acted as Irish legal advisers to Teva Pharmaceuticals Finance Ireland
Limited (the "Company") in connection with the proposed issue by the Company of
debt securities (the "Securities") pursuant to an indenture (the "Indenture").

1        BASIS OF OPINION

1.1      This opinion is addressed to the Company and to Teva Pharmaceutical
         Industries Limited ("Teva") and to them only and may be relied upon by
         them for their own benefit. It may not be relied upon by any other
         person, or used for any other purpose, or quoted or referred to in any
         public document, or filed with any government agency or other person,
         nor may its existence or contents be disclosed to any person without,
         in any such case, our written consent, save that we hereby consent to
         the filing of this opinion as an exhibit to the registration statement
         (the "Registration Statement") to be filed by Teva and certain of its
         subsidiaries, including the Company, with the United States Securities
         and Exchange Commission pursuant to the United States Securities Act of
         1933 (the "1933 Act") for the registration of the sale from time to
         time of up to $2,000,000,000.00 aggregate amount of securities of Teva
         and such subsidiaries, including the Company. By giving our consent we
         do not admit that we are in a category of persons whose consent is
         required under Section 7 of the 1933 Act or the rules and regulations
         promulgated thereunder.



1.2      This opinion is written only with respect to the laws of Ireland in
         effect at the date of signing of this opinion. We have made no
         investigation of and express no opinion as to the laws of any other
         jurisdiction, including the laws of the State of New York, and we have
         assumed, without enquiry, that there is nothing in the laws of any
         other jurisdiction which would or might affect our opinion as stated
         herein. We express no opinion on European Union law as it affects any
         jurisdiction other than Ireland.

1.3      This opinion is strictly limited to the Indenture and the matters
         stated herein.

1.4      For the purposes of giving this opinion, we have examined:

         (a)  the Indenture;

         (b)  Registration Statement;

         (c)  the searches carried out on 12 December 2003 at the Companies
              Registration Office and the Index of Petitions and Winding Up
              Notices maintained at the Central Office of the High Court in
              relation to the Company (the "Searches"); and

         (d)  such Irish laws as we have considered necessary and appropriate
              for the purposes of this opinion.

1.5      We have made no searches or enquiries concerning, and we have not
         examined any contracts, instruments or documents entered into by or
         affecting the Company, or any other person, or any corporate records of
         the Company, or any other person, save for those searches, enquiries,
         contracts, instruments, documents or corporate records specified as
         being made or examined in this opinion.

1.6      This opinion speaks as of its date.  We assume no obligation to update
         the opinions set forth herein.

1.7      This opinion is to be construed in accordance with and governed by the
         laws of Ireland as at the date hereof.

1.8      We express no opinion and make no representation or warranty, as to any
         matter of fact.

1.9      We have not been responsible for investigating or verifying the
         accuracy of the facts, or the reasonableness of any assumptions or
         statements of opinion, contained in the Indenture, or for ensuring that
         no material facts have been omitted therefrom.

1.10     We have not advised and are not opining on the Irish taxation treatment
         of the Company,  the Indenture,  the Securities or any holder of the
         Securities.

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1.11     Certain terms used in this opinion and not defined herein shall have
         the meanings assigned to them in the Indenture.

2        ASSUMPTIONS

         For the purposes of expressing this opinion we have assumed, without
         any responsibility on our part if any assumption proves to have been
         untrue as we have not independently verified any assumption:

2.1      the completeness and authenticity of all documents submitted to or
         examined by us;

2.2      that there is or are no factual information or documents possessed or
         discoverable by persons other than ourselves of which we are not aware
         but of which we should be aware for the purposes of this opinion;

2.3      the  absence  of fraud and the  presence  of good  faith on the part of
         all  parties  to the  Indenture  and their  respective officers,
         employees, agents and advisers;

2.4      the truth of all representations and information given to us in reply
         to any queries we have made which we have considered necessary for the
         purpose of giving this opinion (other than matters of Irish law
         specifically covered by this opinion);

2.5      that there are and, at the time of execution and delivery of the
         Indenture and the issue of the Securities will be, no agreements or
         arrangements in existence which in any way amend or vary the terms of
         the Indenture or in any way bear upon or are inconsistent with the
         opinions stated herein;

2.6      that there are no provisions of the laws of any jurisdiction outside
         Ireland which would be contravened by the execution or delivery or
         performance of the Indenture and that none of the opinions expressed in
         paragraph 3 below will be affected by the laws or public policy of any
         jurisdiction outside Ireland;

2.7      that the Indenture and all deeds, instruments, assignments, agreements
         and other documents in relation to the matters contemplated by the
         Indenture and/or this opinion ("Ancillary Documents") are:

         (a)  within the capacity and powers of, will be validly authorised,
              executed and delivered by and will be valid and legal obligations
              binding on the parties thereto; and

         (b)  will not be subject to avoidance by any person,

         under all applicable laws and in all applicable jurisdictions other
         than (in the case of the Company), the laws of Ireland and the
         jurisdiction of Ireland;

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2.8      that insofar the Indenture or any of the Ancillary Documents fall to be
         performed in any jurisdiction other than Ireland its performance will
         not be illegal or ineffective by virtue of the laws of that
         jurisdiction;

2.9      that under all applicable laws (other than Irish law):

         (i)  the choice of New York law as the governing law of the Indenture
              is a valid and binding selection which will be upheld, recognised
              and given effect by the courts of any relevant jurisdiction
              (other than those of Ireland); and

         (ii) the submission of each of the parties to the Indenture to the
              jurisdiction of the courts of New York will be upheld, recognised
              and given effect to by the courts of any relevant jurisdiction
              (other than those of Ireland);

2.10     that the representations and warranties by all parties (including those
         to be given on behalf of the Company) in the Indenture will at all
         times be true and correct in all respects with regard to the facts
         stated therein (with the exception of those representations and
         warranties which relate to matters of Irish law on which we have
         specifically and expressly given our opinion);

2.11     that the information disclosed by the Searches was then accurate and
         has not been altered and that the Searches did not fail to disclose any
         information which had been delivered for registration but did not
         appear from the information available at the time that the Searches
         were made and that all filings which should have been delivered to the
         Companies Registration Office and the Central Office of the High Court
         have been so delivered;

2.12     that each of the parties to the Indenture will derive commercial
         benefit from entering into the Indenture and that the Indenture will be
         entered into, and each of the transactions referred to herein and
         therein will be carried out by each such party in good faith, for the
         purpose of carrying on its business, for its own benefit and on arm's
         length commercial terms;

2.13     that in entering into the Indenture  and carrying out the  transactions
         referred to therein there is no intent on the part of the Company to:

         (a)  defraud any of its creditors; or

         (b)  prefer any of its creditors over any other of its creditors
              (otherwise than as contemplated by or permitted in the
              Indenture);

2.14     that:

         (a)  the Company will be solvent immediately following the execution
              of the Indenture and the issue of the Securities;


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         (b)  the Company will not as a consequence of doing any act or thing
              which the Indenture contemplates, permits or requires the Company
              to do, be insolvent;

         (c)  prior to the execution and delivery of the Indenture and the
              issue of the Securities, no petition for the appointment of a
              liquidator or examiner will be presented in relation to the
              Company; and

         (d)  prior to the execution and delivery of the Indenture and the
              issue of the Securities, no receiver has been appointed in
              relation to any of the assets or undertaking of the Company;

2.15     that:

         (a)  the Securities will be offered in circumstances which do not
              constitute an offer to the public within the meaning of the Irish
              Companies Act 1963 (the "1963 Act") or the European Communities
              (Transferable Securities and Stock Exchange Regulations) 1992
              (the "1992 Regulations"); or

         (b)  if the Securities are to be offered in circumstances which
              constitute an offer to the public within the meaning of the 1963
              Act and/or the 1992 Regulations, the Company will be converted
              into a public limited company prior to such offering, and the
              offering will otherwise comply with the applicable requirements
              of the 1963 Act and the 1992 Regulations; and

2.16     that the  Indenture  although  in fact  governed by New York law,  has
         the same  meaning and effect as it would have if it was governed by
         Irish law.

3        OPINION

         Based upon and subject to the foregoing and the qualifications
         mentioned below, we are of the opinion that, so far as the laws of
         Ireland as in force at the date of this opinion are concerned:

3.1      the Company is a body corporate duly incorporated under the laws of
         Ireland as a private company limited by shares. Based only on the
         Searches the Company is validly existing under the laws of Ireland and
         no steps have been taken or are being taken to appoint a receiver,
         examiner or liquidator over the Company or to wind it up;

3.2      the Company has all requisite corporate power and authority to own its
         properties and conduct its business as described in the Registration
         Statement and as set forth in clause 2 of its Memorandum of
         Association;

3.3      when the Indenture has been duly authorised, executed and delivered by
         the parties thereto, including the Company, in accordance with the form
         thereof reviewed by us, and when the specific terms of a particular
         series of Securities have been duly authorised and

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         established in accordance with the Indenture and such Securities have
         been duly authorised, executed, authenticated, issued and delivered in
         accordance with the Indenture and any applicable underwriting or other
         agreement, such Securities will constitute valid and binding
         obligations of the Company, enforceable against the Company in
         accordance with their terms;

3.4      the choice of New York law to govern the Indenture is a valid choice of
         law under the laws of Ireland, and accordingly, New York law would
         generally be applied in an action brought in the courts of Ireland in
         respect of a claim thereunder, except if and to the extent that the
         relevant provisions of New York law are not determinable to the
         satisfaction of the Irish courts; and

3.5      any judgment for a definite sum obtained against the Company in the
         courts of New York would be recognised and accepted by the courts of
         Ireland without any retrial or examination of the merits of the case.

4        QUALIFICATIONS

         This opinion is delivered subject to the following qualifications:-

4.1      the term "enforceable" as used in paragraph 3.3 above, means that the
         obligations assumed by the Company under the Indenture are of a type
         which the Irish courts generally enforce. It does not mean that those
         obligations will necessarily be enforced in all circumstances in
         accordance with their terms. In particular:

         (a)  enforcement of obligations of a party to be performed after the
              date hereof may be limited by bankruptcy, insolvency,
              liquidation, court protection, moratorium, reorganisation and
              other similar laws of general application relating to or
              affecting the rights of creditors as such laws may be applied in
              the event of the bankruptcy, insolvency, liquidation, court
              protection, reorganisation or other similar proceedings with
              respect to such party;

         (b)  equitable remedies (such as specific performance or injunctive
              relief) may not be available to persons seeking to enforce
              provisions of the Indenture;

         (c)  claims may become barred under the Statute of Limitations of 1957
              (as may be amended from time to time) or under other statutes or
              may be or become subject to defences of set-off or counterclaim
              (except to the extent that any right of set-off has been waived
              and is not required by the provisions of the rules applicable in
              a liquidation to be exercised). In this regard, the relevant
              periods set down by the Statute of Limitations in relation to
              contractual claims in general is six years and in relation to
              documents executed under seal is twelve years;

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         (d)  where obligations are to be performed in a jurisdiction outside
              Ireland, they may not be enforceable in Ireland to the extent
              that performance would be illegal under the laws of the other
              jurisdiction; and

         (e)  enforcement of obligations may be invalidated by reason of fraud.

4.2      a determination, calculation or certificate of any party to any of the
         Indenture as to any matter provided for therein might in certain
         circumstances be held by the Irish courts not to be final, conclusive
         and binding (for example, if it could be shown to have any unreasonable
         or arbitrary basis) notwithstanding the provisions of the Indenture;

4.3      an Irish court might not enforce any provision of the Indenture which
         requires any party thereto to pay any amounts (including interest) on
         any overdue sum on the grounds that such provision is a penalty and
         does not constitute a genuine and reasonable pre-estimate of the damage
         likely to be suffered as a result of the default in payment of the
         amount in question;

4.4      an Irish court may refuse to give effect to any provision in an
         agreement for the payment of expenses in respect of the costs of
         enforcement (actual or attempted) or unsuccessful litigation brought
         before an Irish court where such court has itself made an order for
         costs;

4.5      provisions as to severability may not be binding under the laws of
         Ireland as the question of whether or not provisions relating to
         invalidity on account of illegality may be severed from provisions in
         order to save such other provisions would be determined by an Irish
         court at its discretion;

4.6      an agreement may be varied,  amended or discharged by a further
         agreement or affected by a collateral  agreement which may be effected
         by an oral agreement or a course of dealing;

4.7      an Irish court might not enforce the benefit of currency conversion or
         indemnity clauses and, with respect to a bankruptcy, liquidation,
         insolvency, reorganisation or similar proceeding, Irish law may require
         that all claims or debts are converted into euro at an exchange rate
         determined by the court as at a date related thereto, such as the date
         of commencement of a winding up;

4.8      the effectiveness of terms exculpating any party to the Indenture from
         a liability or duty otherwise owed are limited by law;

4.9      our opinion at paragraph 3.4 above should be read subject to the
         qualification that the Rome Convention on The Law Applicable To
         Contractual Obligations (the "Rome Convention") (other than Article
         7(1)) has force of law in Ireland and that therefore the choice of New
         York law as the governing law of the Indenture is subject to the
         provisions of the Rome Convention. For example, the courts of Ireland
         may apply any

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         rule of Irish law which is mandatory irrespective of the governing law
         and may refuse to apply a rule of the governing law if it is
         manifestly incompatible with the public policy of Ireland. Please note
         that it is the courts of Ireland who determine on a case by case basis
         what the public policy of Ireland is and what the mandatory rules of
         Irish law are. Regarding the provisions of the Indenture in our
         opinion, other than any provision which may conflict with the rules of
         Irish law and public policy set out in section 4 of this opinion,
         there is no provision of the Indenture which an Irish court would hold
         as being manifestly incompatible with the public policy of Ireland as
         heretofore enunciated by the Irish courts, or which an Irish court
         would refuse to enforce by reason of the application of any mandatory
         rule of Irish law;

4.10     our opinion at paragraph 3.5 would be read subject to the qualification
         that a judgment obtained in the courts of New York will not be directly
         enforceable in Ireland but, if the relevant judgement;

         (a)  is based on personal action;

         (b)  is for debt for a definitive sum of money;

         (c)  is final and conclusive;

         (d)  is not impeachable on the grounds of jurisdiction, fraud, public
              policy or natural of constitutional justice;

         (e)  is not inconsistent with a judgment of the courts of Ireland in
              relation to the same matter; and

         (f)  enforcement proceedings are instituted in Ireland within six
              years of the date of the judgment,

         the plaintiff will be able to obtain summary judgement in a new action
         in Ireland on the grounds that the defendant has no defence to the
         claim;

4.11     as regards jurisdiction, the courts of Ireland may stay proceedings if
         concurrent proceedings are being brought elsewhere;

4.12     the exercise by the Trustee or the Securityholders of powers and
         remedies conferred on them by Indenture or otherwise vested in them by
         law will be subject to general equitable principles of Irish law and
         the general supervisory powers and discretion of the Irish courts (for
         example, if such party were to be unduly slow in asserting an equitable
         claim then in certain circumstances such a delay, if it takes the form
         of what has come to be called laches, could provide a defence to such a
         claim). We express no opinion as to the efficacy of the exercise of any
         powers conferred upon the either party pursuant to the Indenture
         insofar as those powers go beyond those conferred by statute or by
         common law;

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4.13     we express no opinion herein as the effectiveness of the Indenture at
         any time following changes being made to the terms thereof by course of
         conduct or any waiver whether express or implied; and

4.14     the Searches made at the Companies Registration Office against the
         Company are not capable of revealing or may not necessarily reveal
         whether or not a winding up petition or a petition for the appointment
         of an examiner has been presented or whether or not a receiver has been
         appointed or whether there has been a resolution of the directors or
         shareholders to appoint or to petition for the appointment of a
         liquidator, receiver or examiner to the Company. Whilst each of the
         making of a winding up order, the making of an order for the
         appointment of an examiner and the appointment of a receiver may be
         revealed by a search at the Companies Registration Office it may not be
         filed at the Companies Registration Office immediately and, therefore,
         our Searches at the Companies Registration Office may not have revealed
         such matters. The time periods for filing of the relevant orders and
         notifications with the Companies Registration Office are in the case of
         a winding up order, fourteen or twenty one days depending on the nature
         of the winding up, in the case of a an order for the appointment of an
         examiner, three days and in the case of an appointment of a receiver,
         seven days.


Yours faithfully



/s/ MATHESON ORMSBY PRENTICE


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