Total Voting Rights

Intl. Biotechnology Trust PLC
31 May 2007



                                                                     31 May 2007


                     INTERNATIONAL BIOTECHNOLOGY TRUST PLC

                           VOTING RIGHTS AND CAPITAL



In accordance with the Disclosure and Transparency Rule 5.6.1, International
Biotechnology Trust plc ('the Company') announces that its issued share capital
consists of 69,642,664 ordinary shares of 25p with each share carrying the right
to one vote. The Company does not hold any shares in treasury.

The total number of voting rights in the Company is therefore 69,642,664.

The above figure may be used by shareholders as the denominator for the
calculations by which they will determine if they are required to notify their
interest in, or a change to their interest in, the Company's total voting rights
under the Rules.



Enquiries:

Louise Richard
Schroder Investment Management Limited                    Tel: [phone]






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