SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13D


                    Under the Securities Exchange Act of 1934
                               (Amendment No. 20)*


                           Barr Pharmaceuticals, Inc.
                                (Name of Issuer)

                                  Common Stock
                         (Title of Class of Securities)

                                    068306109
                                 (CUSIP Number)

                                Meyer F. Florence
                                150 Signet Drive
                         Weston, Ontario, Canada M9L 1T9
                                 (416) 749-9300
  (Name, Address and Telephone Number of Person Authorized to Received Notices
                               and Communications)


                                May 10, 2006
             (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 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).



                                  SCHEDULE 13D

CUSIP No. 068306109

1)       NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
                  Bernard C. Sherman

2)       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
                  (a)
                      ---
                  (b)  X
                      ---

3)       SEC USE ONLY

4)       SOURCE OF FUNDS (SEE INSTRUCTIONS)

5)       CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
         ITEMS 2(d) or 2(e)

6)       CITIZENSHIP OR PLACE OF ORGANIZATION
                  Ontario, Canada


NUMBER OF                  7)      SOLE VOTING POWER
SHARES                             16,875
BENEFICIALLY               8)      SHARED VOTING POWER
OWNED BY                           5,250,000
EACH                       9)      SOLE DISPOSITIVE POWER
REPORTING                          16,875
PERSON WITH                10)     SHARED DISPOSITIVE POWER
                                   5,250,000

11)      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                  5,266,875


12)      CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
         (SEE INSTRUCTIONS)


13)      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
                  5.0%


14)      TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
                  IN



                                       2



                                  SCHEDULE 13D
CUSIP No. 068306109

1)       NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
                  The Bernard Sherman 2000 Trust

2)       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
                           (a)
                               ---
                           (b)  X
                               ---

3)       SEC USE ONLY

4)       SOURCE OF FUNDS (SEE INSTRUCTIONS)

5)       CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
         ITEMS 2(d) or 2(e)

6)       CITIZENSHIP OR PLACE OF ORGANIZATION
                  Ontario, Canada


NUMBER OF                  7)       SOLE VOTING POWER
SHARES                              0
BENEFICIALLY               8)       SHARED VOTING POWER
OWNED BY                            5,250,000
EACH                       9)       SOLE DISPOSITIVE POWER
REPORTING                           0
PERSON WITH                10)      SHARED DISPOSITIVE POWER
                                    5,250,000

11)      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                  5,250,000


12)      CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
         (SEE INSTRUCTIONS)


13)      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
                  5.0%


14)      TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
                  OO




                                       3



                                  SCHEDULE 13D
CUSIP No. 068306109

1)       NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
                  Sherman Holdings Inc.

2)       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
                           (a)
                               ---
                           (b)  X
                               ---

3)       SEC USE ONLY

4)       SOURCE OF FUNDS (SEE INSTRUCTIONS)

5)       CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
         ITEMS 2(d) or 2(e)

6)       CITIZENSHIP OR PLACE OF ORGANIZATION
                  Ontario, Canada


NUMBER OF                  7)       SOLE VOTING POWER
SHARES                              0
BENEFICIALLY               8)       SHARED VOTING POWER
OWNED BY                            5,250,000
EACH                       9)       SOLE DISPOSITIVE POWER
REPORTING                           0
PERSON WITH                10)      SHARED DISPOSITIVE POWER
                                    5,250,000

11)      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                  5,250,000


12)      CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
         (SEE INSTRUCTIONS)


13)      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
                  5.0%


14)      TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
                  HC, CO



                                       4




                                  SCHEDULE 13D
CUSIP No. 068306109

1)       NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
                  Shermco Inc.

2)       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
                           (a)
                               ---
                           (b)  X
                               ---

3)       SEC USE ONLY

4)       SOURCE OF FUNDS (SEE INSTRUCTIONS)

5)       CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
         ITEMS 2(d) or 2(e)

6)       CITIZENSHIP OR PLACE OF ORGANIZATION
                  Ontario, Canada


NUMBER OF                  7)       SOLE VOTING POWER
SHARES                              0
BENEFICIALLY               8)       SHARED VOTING POWER
OWNED BY                            5,250,000
EACH                       9)       SOLE DISPOSITIVE POWER
REPORTING                           0
PERSON WITH                10)      SHARED DISPOSITIVE POWER
                                    5,250,000

11)      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                  5,250,000


12)      CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
         (SEE INSTRUCTIONS)


13)      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
                  5.0%


14)      TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
                  HC, CO





                                       5



                                  SCHEDULE 13D
CUSIP No. 068306109

1)       NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
                  Sherfam Inc.

2)       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
                           (a)
                               ---
                           (b)  X
                               ---

3)       SEC USE ONLY

4)       SOURCE OF FUNDS (SEE INSTRUCTIONS)

5)       CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
         ITEMS 2(d) or 2(e)

6)       CITIZENSHIP OR PLACE OF ORGANIZATION
                  Ontario, Canada


NUMBER OF                  7)       SOLE VOTING POWER
SHARES                              0
BENEFICIALLY               8)       SHARED VOTING POWER
OWNED BY                            5,250,000
EACH                       9)       SOLE DISPOSITIVE POWER
REPORTING                           0
PERSON WITH                10)      SHARED DISPOSITIVE POWER
                                    5,250,000

11)      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                  5,250,000


12)      CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
         (SEE INSTRUCTIONS)

13)      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
                  5.0%

14)      TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
                  HC, CO




                                       6



                                  SCHEDULE 13D
CUSIP No. 068306109

1)       NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
                  Apotex Holdings Inc.

2)       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
                           (a)
                               ---
                           (b)  X
                               ---

3)       SEC USE ONLY

4)       SOURCE OF FUNDS (SEE INSTRUCTIONS)

5)       CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
         ITEMS 2(d) or 2(e)

6)       CITIZENSHIP OR PLACE OF ORGANIZATION
                  Ontario, Canada


NUMBER OF                  7)       SOLE VOTING POWER
SHARES                              0
BENEFICIALLY               8)       SHARED VOTING POWER
OWNED BY                            5,250,000
EACH                       9)       SOLE DISPOSITIVE POWER
REPORTING                           0
PERSON WITH                10)      SHARED DISPOSITIVE POWER
                                    5,250,000


11)      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                  5,250,000


12)      CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
         (SEE INSTRUCTIONS)


13)      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
                  5.0%


14)      TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
                  HC, CO



                                       7



                                  SCHEDULE 13D
CUSIP No. 068306109

1)       NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
                  SHERMFIN INC.  22-2416614

2)       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
                           (a)
                               ---
                           (b)  X
                               ---

3)       SEC USE ONLY

4)       SOURCE OF FUNDS (SEE INSTRUCTIONS)

5)       CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
         ITEMS 2(d) or 2(e)

6)       CITIZENSHIP OR PLACE OF ORGANIZATION
                  Delaware, USA


NUMBER OF                  7)       SOLE VOTING POWER
SHARES                              0
BENEFICIALLY               8)       SHARED VOTING POWER
OWNED BY                            5,250,000
EACH                       9)       SOLE DISPOSITIVE POWER
REPORTING                           0
PERSON WITH                10)      SHARED DISPOSITIVE POWER
                                    5,250,000

11)      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                  5,250,000


12)      CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
         (SEE INSTRUCTIONS)


13)      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
                  5.0%


14)      TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
                  HC, CO



                                       8



                                  SCHEDULE 13D
CUSIP No. 068306109

1)       NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
                  Sherman Delaware, Inc.  13-3083682

2)       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
                           (a)
                               ---
                           (b)  X
                               ---

3)       SEC USE ONLY

4)       SOURCE OF FUNDS (SEE INSTRUCTIONS)

5)       CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
         ITEMS 2(d) or 2(e)

6)       CITIZENSHIP OR PLACE OF ORGANIZATION
                  Delaware, USA


NUMBER OF                  7)       SOLE VOTING POWER
SHARES                              0
BENEFICIALLY               8)       SHARED VOTING POWER
OWNED BY                            5,250,000
EACH                       9)       SOLE DISPOSITIVE POWER
REPORTING                           0
PERSON WITH                10)      SHARED DISPOSITIVE POWER
                                    5,250,000

11)      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                  5,250,000


12)      CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
         (SEE INSTRUCTIONS)


13)      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
                  5.0%


14)      TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
                  HC, CO



                                       9




The Reporting Persons (as defined below) hereby amend and supplement the
Schedule 13D originally filed with the Securities and Exchange Commission (the
"SEC") on March 26, 1999, as amended by Amendment No. 1 filed with the SEC on
July 1, 1999, as amended by Amendment No. 2 filed with the SEC on June 14, 2001,
as amended by Amendment No. 3 filed with the SEC on December 24, 2002, as
amended by Amendment No. 4 filed with the SEC on February 19, 2003, as amended
by Amendment No. 5 filed with the SEC on March 7, 2003, as amended by Amendment
No. 6 filed with the SEC on May 19, 2003, as amended by Amendment No. 7 filed
with the SEC on August 21, 2003, as amended by Amendment No. 8 filed with the
SEC on September 19, 2003, as amended by Amendment No. 9 filed with the SEC on
October 23, 2003, as amended by Amendment No. 10 filed with the SEC on December
23, 2003, as amended by Amendment No. 11 filed with the SEC on January 6, 2004,
as amended by Amendment No. 12 filed with the SEC on March 1, 2004, as amended
by Amendment No. 13 filed with the SEC on April 15, 2004, as amended by
Amendment No. 14 filed with the SEC on June 8, 2004, as amended by Amendment No.
15 filed with the SEC on June 25, 2004, as amended by Amendment No. 16 filed
with the SEC on November 15, 2004, as amended by Amendment No. 17 filed with the
SEC on July 7, 2005, as amended by Amendment No. 18 filed with the SEC on
October 7, 2005 and as further amended by Amendment No. 19 filed with the SEC on
October 28, 2005 (the "Schedule") as follows:


         This Schedule relates to the common stock, par value $.01 per share
("Common Stock"), of Barr Pharmaceuticals, Inc., a Delaware corporation (the
"Issuer").

"Item 5.  Interest in Securities of the Issuer.

         Items 5(a) and (b) of the Schedule are hereby amended by deleting the
existing text and inserting the following text in its stead:





                          Amount                  Sole Power to      Shared Power to       Sole Power to          Shared Power to
     Reporting Person  Beneficially  Percent of      Vote or             Vote or         Dispose or Direct       Dispose or Direct
                         Owned (1)     Class     Direct the Vote(1)  Direct the Vote(1)  the Disposition of(1)  the Dispostion of(1)

1. Dr. Sherman          5,266,875(2)     5.0         16,875           5,250,000(2)           16,875               5,250,000(2)
2. Sherman Trust        5,250,000(2)     5.0            0             5,250,000(2)             0                  5,250,000(2)
3. Sherman Holdings     5,250,000(2)     5.0            0             5,250,000(2)             0                  5,250,000(2)
4. Shermco              5,250,000(2)     5.0            0             5,250,000(2)             0                  5,250,000(2)
5. Sherfam              5,250,000(2)     5.0            0             5,250,000(2)             0                  5,250,000(2)
6. Apotex               5,250,000(2)     5.0            0             5,250,000(2)             0                  5,250,000(2)
7. Shermfin             5,250,000(2)     5.0            0             5,250,000(2)             0                  5,250,000(2)
8. SDI                  5,250,000(2)     5.0            0             5,250,000(2)             0                  5,250,000(2)



(1)      All share amounts have been adjusted from those disclosed in Amendment
         12 to the Schedule to reflect the 3-for-2 stock split effected
         in the form of a 50% stock dividend distributed on March 16, 2004.

(2)      By virtue of the relationships described in Item 2(a) above, Dr.
         Sherman, Sherman Trust, Sherman Holdings, Shermco, Sherfam, Apotex and
         Shermfin may be deemed to possess indirect beneficial ownership of the
         shares of Common Stock beneficially owned by SDI.

         The filing of this statement by Dr. Sherman, Sherman Trust, Sherman
Holdings, Shermco, Sherfam, Apotex and Shermfin shall not be construed as an
admission that any of Dr. Sherman, Sherman Trust, Sherman Holdings, Shermco,
Sherfam, Apotex or Shermfin, is, for the purposes of Section 13(d) or Section
13(g) of the Act, the beneficial owner of any securities covered by this
statement.

         Because of the relationships described in Item 2(a) above, the
Reporting Persons may be deemed to constitute a "group" within the meaning of
Rule 13d-5 under the Act, and as such, each member of the group would be deemed
to beneficially own, in the aggregate, all the shares of Common Stock held by
members of the group. The Reporting Persons disclaim membership in a group."

         Item 5(c) of the Schedule is hereby amended by deleting the existing
text and inserting the following text in its stead:

                                       10



                    From October 24, 2005 through February 22, 2006, the
                    Reporting Persons sold an aggregate of 500,000 shares of
                    Common Stock in open market transactions at prices ranging
                    from $56.38 to $67.19. Other than as described below, there
                    were no transactions in the Issuer's Common Stock effected
                    by the Reporting Persons through the date hereof. All of the
                    transactions set forth below were effected by the sale by
                    SDI of such shares of Common Stock in open market
                    transactions pursuant to Rule 144 under the Securities Act
                    of 1933, as amended.

                    Trade Date       No. of Shares       Price Per Share
                    ----------       -------------       ---------------

                    05/08/2006              100                $56.83
                    05/08/2006              100                $56.84
                    05/08/2006            1,000                $56.90
                    05/08/2006              100                $56.91
                    05/08/2006              100                $56.92
                    05/08/2006              300                $56.93
                    05/08/2006              200                $56.94
                    05/08/2006              300                $56.95
                    05/08/2006              100                $56.96
                    05/08/2006            1,400                $56.98
                    05/08/2006            1,200                $56.99
                    05/08/2006            7,700                $57.00
                    05/08/2006            3,100                $57.01
                    05/08/2006            4,200                $57.02
                    05/08/2006           48,900                $57.03
                    05/08/2006           69,800                $57.04
                    05/08/2006           31,500                $57.05
                    05/08/2006            4,500                $57.06
                    05/08/2006            9,900                $57.07
                    05/08/2006            4,600                $57.08
                    05/08/2006            1,800                $57.09
                    05/08/2006            4,000                $57.10
                    05/08/2006              400                $57.11
                    05/08/2006            1,500                $57.12
                    05/08/2006              100                $57.13
                    05/08/2006            1,600                $57.15
                    05/08/2006              100                $57.17
                    05/08/2006              600                $57.18
                    05/08/2006              100                $57.20
                    05/08/2006              300                $57.23
                    05/08/2006              400                $57.24

                    05/10/2006              700                $54.13
                    05/10/2006              200                $54.14
                    05/10/2006            4,900                $54.15
                    05/10/2006            5,100                $54.16
                    05/10/2006              100                $54.17
                    05/10/2006            1,100                $54.18
                    05/10/2006            1,000                $54.19
                    05/10/2006              400                $54.20
                    05/10/2006            3,600                $54.21
                    05/10/2006            2,700                $54.22
                    05/10/2006              200                $54.23
                    05/10/2006              500                $54.24
                    05/10/2006              200                $54.25
                    05/10/2006              100                $54.26
                    05/10/2006            1,100                $54.27
                    05/10/2006              300                $54.28
                    05/10/2006            1,300                $54.29
                    05/10/2006              500                $54.30
                    05/10/2006              200                $54.32
                    05/10/2006              100                $54.35
                    05/10/2006              100                $54.38
                    05/10/2006              100                $54.39
                    05/10/2006              200                $54.40
                    05/10/2006              300                $54.42
                    05/10/2006           12,500                $54.59
                    05/10/2006           11,000                $54.60
                    05/10/2006              900                $54.64
                    05/10/2006              600                $54.66


    The Schedule is hereby amended by adding the following text as Item 5(e)
    thereof:

(e) On May 10, 2006, the Reporting Persons ceased to be the beneficial owners of
    more than five percent of the Common Stock.



                                       11




Signature.

After reasonable inquiry and to the best of my knowledge and belief, I certify
that the information set forth in this statement is true, complete and correct.


Date: July 11, 2006

                                                /s/ Bernard C. Sherman
                                                ----------------------
                                                BERNARD C. SHERMAN

                                                THE BERNARD SHERMAN 2000 TRUST
                                                By: /s/ Bernard C. Sherman
                                                    ----------------------
                                                        Bernard C. Sherman
                                                        Sole Trustee

                                                SHERMAN HOLDINGS INC.

                                                By: /s/ Bernard C. Sherman
                                                    ----------------------
                                                        Bernard C. Sherman
                                                        President

                                                SHERMCO INC.

                                                By: /s/ Bernard C. Sherman
                                                    ----------------------
                                                        Bernard C. Sherman
                                                        Chairman

                                                SHERFAM INC.

                                                By: /s/ Bernard C. Sherman
                                                    ----------------------
                                                        Bernard C. Sherman
                                                        Chairman

                                                APOTEX HOLDINGS INC.

                                                By: /s/ Bernard C. Sherman
                                                    ----------------------
                                                        Bernard C. Sherman
                                                        President

                                                SHERMFIN, INC.

                                                By: /s/ Bernard C. Sherman
                                                    ----------------------
                                                        Bernard C. Sherman
                                                        President

                                                SHERMAN DELAWARE, INC.

                                                By: /s/ Bernard C. Sherman
                                                    ----------------------
                                                        Bernard C. Sherman
                                                        President



                                       12