Q2 2003 RESULTS PRESENTATION - 31 July 2003


Basingstoke,  UK - 15 July 2003 - Shire  Pharmaceuticals  Group  plc (LSE:  SHP,
NASDAQ: SHPGY; TSX: SHQ) will announce second quarter 2003 earnings on Thursday,
31 July 2003.

   Results announcement time:               12:00 BST / 07:00 ET
   Conference call time:                    14:00 BST / 09:00 ET


Live conference call:
The details of the live conference call are as follows:

  UK dial in                                + 44 1452 542 304
  US / Canada dial in                       1866 389 9780
  Password                                  Shire Pharmaceuticals


Live  audio  webcast:
There  will  also  be  a  live  audio  webcast  available,   accessible  through
www.shire.com  in the  investor  relations  section.  A  slide  presentation  to
accompany the call will also be available on the Shire website.


Replay:
A replay of the presentation will be available for 2 weeks.  Details are
as follows:

  ----------------------------------------- ------------------------------------
  UK International no:                      + 44 (0)1452 55 00 00
  ----------------------------------------- ------------------------------------
  UK PIN (access) no:                       321825#
  ----------------------------------------- ------------------------------------
  US no:                                    1866 276 1167
  ----------------------------------------- ------------------------------------
  US PIN (access) no:                       321825#
  ----------------------------------------- ------------------------------------
  Webcast Replay                            www.shire.com, in the investor
                                            relations section

If you have any problems  accessing this, please contact:  Souheil Salah on: +44
(0) 1256 894 160

                                                         End

For further information please contact:

Global Investor Relations
Clea Rosenfeld                                               +44 (0)1256 894 160
North America Investor Relations
Gordon Ngan                                                  +44 (0)1256 894 160





Notes to editors

Shire Pharmaceuticals Group plc

Shire  Pharmaceuticals  Group plc  (Shire)  is a rapidly  growing  international
emerging pharmaceutical company with a strategic focus on four therapeutic areas
- - central nervous system disorders (CNS),  gastrointestinal  (GI), oncology, and
anti-infectives.  Shire  also has three  platform  technologies:  advanced  drug
delivery,  lead  optimisation  for small  molecules and Biologics.  Shire's core
strategy is based on research and development  combined with  in-licensing and a
focus on key pharmaceutical markets.

For  further   information  on  Shire,   please  visit  the  Company's  website:
www.shire.com

THE "SAFE HARBOR" STATEMENT UNDER THE PRIVATE  SECURITIES  LITIGATION REFORM ACT
OF  1995.  Statements  included  herein  that  are  not  historical  facts,  are
forward-looking  statements. Such forward-looking statements involve a number of
risks and uncertainties and are subject to change at any time. In the event such
risks  or  uncertainties  materialise,   Shire's  results  could  be  materially
affected.  The risks and  uncertainties  include,  but are not limited to, risks
associated with the inherent  uncertainty of  pharmaceutical  research,  product
development,  manufacturing  and  commercialisation,  the impact of  competitive
products, including, but not limited to, the impact on Shire's Attention Deficit
Hyperactivity Disorder (ADHD) franchise,  patents, including but not limited to,
legal challenges relating to Shire's ADHD franchise,  government  regulation and
approval,  including  but not limited to the expected  product  approval date of
lanthanum  carbonate  (FOSRENOL(R))  and  METHYPATCH  (R) , and other  risks and
uncertainties  detailed  from time to time in our filings,  including the Annual
Report filed on Form 10-K by Shire with the Securities and Exchange Commission.