Exhibit 23.1

                       Consent of Independent Accountants

     We hereby  consent to the  incorporation  by reference in the  Registration
Statements on Form S-3 (No. 333-74613) and Form S-8 (Nos. 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  February 4,
2000,  relating to the financial  statements and financial  statement  schedule,
which appears in this Form 10-K.


/s/ PricewaterhouseCoopers LLP
PricewaterhouseCoopers LLP
St. Louis, Missouri
March 27, 2000