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Exhibit 23.1
CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS
As independent public accountants, we hereby consent to the
incorporation by reference in this Registration Statement of our report dated
February 18, 2000 (except for the matter discussed in Note 14, as to which the
date is April 4, 2000) included in Aronex Pharmaceuticals, Inc.'s Form 10-K/A
for the year ended December 31, 1999, and to all references to our Firm included
in this Registration Statement.
ARTHUR ANDERSEN LLP
Houston, Texas
November 15, 2000
