SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549
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                        SCHEDULE 13D/A3 (Amendment No. 3)
          Under the Securities Exchange Act of 1934 (Amendment No. 3)*

                                   IOMED, INC.
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                                (Name of Issuer)

                     Common Stock, par value $0.01 per share
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                         (Title of Class of Securities)

                                    462028101
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                                 (CUSIP Number)

                                William F. Daniel
                              Elan Corporation, plc
                                  Lincoln House
                                  Lincoln Place
                                Dublin 2, Ireland
                                (353) 1-709-4000

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            (Name, Address and Telephone Number of Person Authorized
                     to Receive Notices and Communications)


                                December 23, 2004
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             (Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report
the acquisition that is the subject of this Schedule 13D, and is filing this
schedule because of ss.ss. 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the
following box [ ].

NOTE: Schedules filed in paper format shall include a signed original and five
copies of the schedule, including all exhibits. See Rule 240.13d-7 for other
parties to whom copies are to be sent.

*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter
disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).




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CUSIP No.  45325S-10-1
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      (1)         NAME OF REPORTING PERSONS
                  Elan Corporation, plc

                  I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (entities only)
                  N/A
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      (2)         CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See
                  Instructions) 
                  (a) [ ]
                  (b) [ ]
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      (3)         SEC USE ONLY

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      (4)         SOURCE OF FUNDS (See Instructions) WC, OO
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      (5)         CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED 
                  PURSUANT TO ITEMS 2(d) or 2(e)  [  ]
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      (6)         CITIZENSHIP OR PLACE OF ORGANIZATION Ireland
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   Number of      (7)    SOLE VOTING POWER
     Shares              -0-  (See Item 5)
                  --------------------------------------------------------------
  Beneficially    (8)    SHARED VOTING POWER
     Owned               854,291  (See Item 5)
                  --------------------------------------------------------------
    by Each       (9)    SOLE DISPOSITIVE POWER
   Reporting             -0-  (See Item 5)
                  --------------------------------------------------------------
  Person With     (10)   SHARED DISPOSITIVE POWER
                         854,291  (See Item 5)
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      (11)        AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                  854,291 (See Item 5)
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      (12)        CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN 
                  SHARES (See Instructions)  [  ]
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      (13)        PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 13.0% (See
                  Item 5)
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      (14)        TYPE OF REPORTING PERSON (See Instructions) CO
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CUSIP No.  45325S-10-1
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      (1)         NAME OF REPORTING PERSONS Elan International Services, Ltd.

                  I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (entities only)
                  N/A
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      (2)         CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See
                  Instructions) 
                  (a) [ ]
                  (b) [ ]
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      (3)         SEC USE ONLY

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      (4)         SOURCE OF FUNDS (See Instructions) WC, OO
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      (5)         CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED 
                  PURSUANT TO ITEMS 2(d) or 2(e)  [  ]
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      (6)         CITIZENSHIP OR PLACE OF ORGANIZATION Bermuda
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   Number of      (7)    SOLE VOTING POWER
     Shares              -0-  (See Item 5)
                  --------------------------------------------------------------
  Beneficially    (8)    SHARED VOTING POWER
     Owned               854,291  (See Item 5)
                  --------------------------------------------------------------
    by Each       (9)    SOLE DISPOSITIVE POWER
   Reporting             -0-  (See Item 5)
                  --------------------------------------------------------------
  Person With     (10)   SHARED DISPOSITIVE POWER
                         854,291  (See Item 5)
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      (11)        AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                  854,291 (See Item 5)
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      (12)        CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
                  SHARES (See Instructions)  [  ]
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      (13)        PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 13.0% (See
                  Item 5)
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      (14)        TYPE OF REPORTING PERSON (See Instructions) CO
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Item 1. Security and Issuer.

     Item 1 of the Schedule 13D is hereby amended and restated in its entirety
as follows:

     This Amendment No. 3 is filed by Elan Corporation, plc, an Irish public
limited company ("Elan"), and Elan's direct wholly-owned subsidiary, Elan
International Services, Ltd., a Bermuda exempted company ("EIS"), and relates to
the common stock, par value $.01 per share (the "Common Stock"), of Iomed, Inc.,
a Delaware corporation ("Issuer"). This Amendment No. 3 amends the Schedule 13D
filed with the Securities and Exchange Commission (the "Commission") on May 19,
1998, the Amendment No. 1 to Schedule 13D filed with the Commission on June 25,
2004 and the Amendment No. 2 to Schedule 13D filed with the Commission on July
16, 2004 by Elan and EIS (the "Schedule 13D"). The name and address of the
principal executive offices of the Issuer is Iomed, Inc., 3385 West 1820 South,
Salt Lake City, Utah 84104.

Item 2. Interest in Securities of Issuer.

     Item 5 of the Schedule 13D is hereby amended and restated in its entirety
as follows (except Item 5(c) which is amended but not restated to add the
information set forth below):

     (a) As of December 28, 2004, Elan (indirectly through its ownership of EIS)
and EIS each beneficially own 854,291 shares of Common Stock, representing 13.0%
of the outstanding shares of Common Stock (based on 6,585,213 shares of Common
Stock outstanding as of October 31, 2004 as reported in the Issuer's Form 10-Q
for the quarterly period ended September 30, 2004).

     (b) As of December 28, 2004, Elan (indirectly through its ownership of EIS)
and EIS each had the shared voting and dispositive power over 854,291 shares of
Common Stock, representing 13.0% of the outstanding shares of Common Stock
(based on 6,585,213 shares of Common Stock outstanding as of October 31, 2004 as
reported in the Issuer's Form 10-Q for the quarterly period ended September 30,
2004).

     (c) On December 23, 2004, EIS sold an aggregate of 893,801 shares of Series
D Preferred Stock in two private transactions. In the first transaction EIS sold
446,901 shares at $0.75 per share and in the second transaction EIS sold 446,900
shares at $0.75 per share.

     (d) None.

     (e) Not applicable.




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                                   SIGNATURES

     After reasonable inquiry and to the best of its knowledge and belief, each
of the undersigned certifies that the information set forth in this statement is
true, complete and correct.

Date:    December 28, 2004

                                 ELAN CORPORATION, PLC



                                 By:  /s/  William F. Daniel
                                      -------------------------------------
                                      Name:  William F. Daniel
                                      Title:  EVP and Company Secretary






                                 ELAN INTERNATIONAL SERVICES, LTD.



                                 By:  /s/  Kevin Insley
                                           --------------------------------
                                      Name:  Kevin Insley
                                      Title:  President and Chief 
                                              Financial Officer






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