EX-23.1 2 consent.htm CONSENT OF PRICEWATERHOUSECOOPERS LLP Consent of PricewaterhouseCoopers LLP Exhibit 23.1
 
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
 
We hereby consent to the incorporation by reference in the Registration Statement on Form S-8 (Nos. 333-110573, 333-43336, 333-80255, 333-72441, 333-69855, 333-48779, 333-48767, 333-48765, 333-27983, 333-04291, 33-64094, 33-64278, 33-93106) of Express Scripts, Inc. of our report dated March 28, 2005 relating to the financial statements of Priority Healthcare Corporation, which appears in the Current Report on Form 8-K/A of Express Scripts, Inc. dated December 22, 2005.
 
 
/s/ PricewaterhouseCoopers LLP
 
PricewaterhouseCoopers LLP
St. Louis, Missouri
December 22, 2005