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                                                                    EXHIBIT 23.2





                         [LETTERHEAD OF ARTHUR ANDERSEN]



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 June 30, 2000 on
Prolifaron, Inc. included in Alexion Pharmaceuticals, Inc.'s Form 8-K/A dated
November 20, 2000 and to all references to our Firm included in this
Registration Statement.

/s/ ARTHUR ANDERSEN LLP

San Diego, California
September 12, 2001














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