AMENDMENT

                                  May 26, 1999

                  THIS AMENDMENT  modifies and amends the  Employment  Agreement
(the "Agreement") dated as of June 2, 1997 by and between DENDRITE INTERNATIONAL
INC.  ("Dendrite")  and GEORGE ROBSON  ("Employee").  Unless  otherwise  defined
herein,  capitalized  terms used herein shall have their respective  meanings as
set forth in the Agreement.

                  The parties agree as follows:

                  1. The last  sentence in Section  3(iii)(a)  of the  Agreement
which states that  "Notwithstanding  anything to the contrary, in the event of a
`Change in Control' (as defined below), if Employee is not retained in a similar
position or no similar  position  is offered to  Employee  following a Change in
Control,  all of Employee's options owned by him at the time of such event shall
immediately  vest" is deleted in its entirety and  replaced  with the  following
sentence:

                  Notwithstanding  anything to the  contrary,  in the event of a
                  "Change in Control"  (as  defined  below),  all of  Employee's
                  options  owned  by  him  at  the  time  of  such  event  shall
                  immediately vest.

                  2. Except as expressly modified by this Amendment,  all of the
terms and conditions of the Agreement shall remain in full force and effect.

                  IN WITNESS WHEREOF,  the parties have signed this Amendment as
of the first date written above.

                                          DENDRITE INTERNATIONAL, INC.

                                          JOHN E. BAILYE
                                          ______________________________________
                                          Name:  John E. Bailye
                                          Title: President and Chief Executive
                                                 Officer

                                          GEORGE ROBSON
                                          ______________________________________
                                          George Robson