EXHIBIT 23.1

            Consent of Independent Registered Public Accounting Firm

The Board of Directors
Nastech Pharmaceutical Company Inc.:

We consent to the use of our reports dated March 15, 2006, with respect to the
consolidated balance sheets of Nastech Pharmaceutical Company Inc. as of
December 31, 2005 and 2004, and the related consolidated statements of
operations, stockholders' equity and comprehensive loss and cash flows for each
of the years in the three-year period ended December 31, 2005, management's
assessment of the effectiveness of internal control over financial reporting as
of December 31, 2005, and the effectiveness of internal control over financial
reporting as of December 31, 2005, incorporated herein by reference and to the
reference to our firm under the heading "Experts" in the prospectus.

/s/ KPMG LLP
- ---------------------------
KPMG LLP

Seattle, WA
October 13, 2006