Transaction in Own Shares

Intl. Biotechnology Trust PLC
11 November 2005

                                                               11 November 2005



                      PURCHASE OF SHARES FOR CANCELLATION


International Biotechnology Trust plc announces that on 11 November 2005 the
Company purchased 250,000 shares for cancellation at a price of 103.00 pence per
share.  Following this transaction, there are a further 47,565,467 shares in
issue.



Enquiries:

John Spedding
Schroder Investment Management Limited                    Tel: [phone]







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