28 June 2006

Director's Dealings

Cyprotex PLC (AIM: CRX), the provider of pharmacokinetic technology and information, today announces that Mr Russell Gibbs, Chief Financial Officer of the Company, bought on Tuesday 27 June 2006 50,000 ordinary shares of 0.1p each in the capital of the Company at a price of 6.50p per share.

As a consequence of this purchase, the total number of shares of Cyprotex held by Mr Gibbs represents less than 0.1% of the issued share capital.

For further information:

Cyprotex PLC
Robert Morrison Atwater, CEO
Tel: +44 1625 505 100
ir@cyprotex.com
www.cyprotex.com

Code Securities Limited:
Richard Potts
Tel: +44 20 7776 1200
RVP@nomuracode.com
www.codesecurities.com

Abchurch
Heather Salmond/Georgina Bonham
Tel: +44 (0)20 7398 7700
heather.salmond@abchurch-group.com
www.abchurch-group.com