Exhibit 10.6

AMENDMENT TO CREDIT AGREEMENT

        AMENDMENT, dated as of November 1, 2002 (the "Amendment"), to the Credit
Agreement dated as of February 8, 2002, by and among EON LABS, INC., a Delaware
corporation and EON PHARMA, LLC, a Delaware limited liability company (each a
"Company" and, collectively the "Companies") and JPMORGAN CHASE BANK, a New York
banking corporation, (the "Lender").

RECITALS

        The Companies have requested and the Lender has agreed, subject to the
terms and conditions of this Amendment, to amend certain provisions of the
Credit Agreement as hereinafter set forth.

        Accordingly, in consideration of the premises and of the mutual
covenants and agreements hereinafter set forth, the parties hereto agree as
follows:

        1.    Amendments. (a) The proviso in the first sentence of Section 6.01
of the Agreement is hereby amended and restated in its entirety to read as
follows:

        ; provided however, (x) with respect to the period commencing on
September 30, 2003, product liability insurance shall be in an amount not less
than $80,000,000 per claim and in the aggregate except with respect to
(a) phentermine, which shall be not less than $35,000,000 per claim and in the
aggregate, and (b) phenylpropanolamine, which shall be not less than $75,000,000
per claim and in the aggregate, and which may be "Supplemental Extended
Reporting Policies" only and (y) with respect to the period prior to
September 30, 2003, product liability insurance shall be in an amount not less
than $25,000,000 per claim and in the aggregate, together with $15,000,000 of
product liability insurance per claim and in the aggregate with respect to
phentermine, and $75,000,000 of product liability insurance per claim and in the
aggregate with respect to phenylpropanolamine.

        (b)  Section 8.01 is hereby amended to (x) delete the text "or" at the
end of clause (n) thereof, (y) insert the text "or" at the end of clause (o)
thereof, and (z) add a new clause (p) which shall read in its entirety as
follows:

        (p)  any Company shall receive notification that any product liability
insurance required to be maintained pursuant to Section 6.01 will not be renewed
or will only be renewed in an amount less than the coverage required and prior
to the earlier of (i) the effective date of such renewal or reduced amount and
(ii) thirty (30) days from the date of such notice, the Companies shall not have
in full force and effect the product insurance policies required to be
maintained pursuant to Section 6.01;

        2.    Conditions of Effectiveness. It is a condition to the
effectiveness of this Amendment that the Bank receive a fee in the amount of
$2,000 on the date hereof.

        3.    Miscellaneous.

        THIS AMENDMENT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE
LAWS OF THE STATE OF NEW YORK WITHOUT REGARD TO PRINCIPLES OF CONFLICTS OF LAW.

        All capitalized terms used herein shall have the same meanings as in the
Credit Agreement unless specifically defined herein.

        This Amendment shall constitute a Loan Document.

        Except as expressly amended hereby, the Credit Agreement shall remain in
full force and effect in accordance with the terms thereof. As amended hereby,
the Credit Agreement is ratified and confirmed in all respects. This Amendment
is limited specifically to the matter set forth above and does not constitute
directly or by implication an amendment or waiver of any other provisions of the
Credit

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

Agreement or any Event of Default or Default which may occur or may have
occurred under the Agreement.

        Each Company hereby represents and warrants that, after giving effect to
this Amendment (a) each of the representations and warranties of the Companies
and each Guarantor set forth in the Credit Agreement and each other Loan
Document to which any thereof is a party is true and correct on and as of the
date hereof with the same effect as though such representations and warranties
had been made on and as of the date hereof, and (b) no Default or Event of
Default exists under the Credit Agreement or any other Loan Document.

        This Amendment may be executed in one or more counterparts, each of
which shall constitute an original, but all of which, when taken together, shall
constitute but one Amendment.

[next page is signature page]

2

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

        IN WITNESS WHEREOF, the Companies and the Lender have caused this
Amendment to be duly executed by their duly authorized officers, all as of the
day and year first above written.

    EON LABS, INC.
 
 
By:
/s/  WILLIAM F. HOLT      

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

    Name: William F. Holt     Title: Vice President Finance
 
 
EON PHARMA, LLC
 
 
By:
/s/  WILLIAM F. HOLT      

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

    Name: William F. Holt     Title: Vice President Finance
 
 
JPMORGAN CHASE BANK
 
 
By:
/s/  SANFORD WALD      

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

    Name: Sanford Wald     Title: Vice President

3

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

        The undersigned not a party to the Credit Agreement but as Guarantor
under its Guaranty, hereby accepts and agrees to the terms of this Amendment and
further acknowledge that its Guaranty is in full force and effect.

    FORTE PHARMA, INC.
 
 
By:
/s/  WILLIAM F. HOLT      

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

    Name: William F. Holt     Title: President

4

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