[ANDERSEN LETTERHEAD]

Arthur Andersen LLP
1601 Market Street
Philadelphia, PA 19103-2489

Tel 267-675-6000

www.andersen.com

Officer of the Chief Accountant
Securities and Exchange Commission
450 Fifth Avenue, N.W.
Washington, D.C. 20549

April 10, 2002

Dear Ladies and Gentlemen:

     We have read the second, third and fourth paragraphs of Item 4 included in the Form 8-K dated April 10, 2002 of Dendrite International, Inc. to be filed with the Securities and Exchange Commission and are in agreement with the statements contained therein.

Very truly yours,


ARTHUR ANDERSEN LLP


Copy to:
Mr. Luke M. Beshar, SVP & CFO
Dendrite International, Inc.