Dendrite International Added To S&P SmallCap 600 Index.

NEW YORK--(BUSINESS WIRE)--Jan. 11, 1999--Standard & Poor's Financial Information Services will replace TheraTech Inc. (THRT) in the S&P SmallCap 600 Index with Dendrite International (DRTE) after the close of trading on Thursday, January 14, 1999. TheraTech Inc. is being acquired by S&P MidCap 400 component Watson Pharmaceuticals (WPI) in a transaction anticipated to close on that date. The merger is still subject to TheraTech shareholders approval.

Dendrite International, headquartered in Morristown, New Jersey, provides management software solutions to control and coordinate large sales forces in complex environments through an Electronic Territory Management system. The company will be added to the S&P SmallCap 600 Computers (Software & Services) industry group.

Following is a summary of the announced change:

               S&P SMALLCAP 600 INDEX--JANUARY 14, 1999


                     COMPANY            ECONOMIC        INDUSTRY
                                         SECTOR           GROUP
----------------------------------------------------------------------
      ADDED    Dendrite International  Technology       Computers
                                                  (Software & Services)
----------------------------------------------------------------------
     DROPPED      TheraTech Inc.      Health Care       Health Care
                                                      (Drugs-Generic &
                                                           Other)
----------------------------------------------------------------------

Standard & Poor's Financial Information Services, a division of The McGraw-Hill Companies, provides financial, economic, and investment information, as well as analytical services, to the global financial community and commodity trading markets.

Standard & Poor's calculates and maintains the S&P 500, S&P MidCap 400, S&P SmallCap 600, S&P Super Composite 1500 and S&P REIT Composite stock price Indices, which are widely considered key barometers of stock market activity and performance benchmarks for professional money managers. Approximately $653 billion is currently indexed to the S&P Equity Indices, including $626 billion indexed to the S&P 500, $20 billion indexed to the S&P MidCap 400, and $7 billion linked to the S&P SmallCap 600. Company additions to and deletions from the S&P equity indices do not in any way reflect an opinion on the investment merits of the company.