Fennec Pharmaceuticals (FENC) 10-K 2007 FY Annual report

Exhibit 23

CONSENT OF INDEPENDENT AUDITORS

We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (Nos. 333-122334, 333-126648 and 333-144241) and the Registration Statement on Form F-3 (No. 333-134732) of our report dated March 28, 2008 relating to the consolidated financial statements of Adherex Technologies Inc. which appear in this Annual Report on Form 10-K.

/s/ PricewaterhouseCoopers LLP

Chartered Accountants, Licensed Public Accountants

Ottawa, Canada

March 28, 2008