(Montreal, Canada. February 11, 2005.) – MDS Pharma Services, a leading provider of innovative drug discovery and development solutions, has announced that its Romanian clinical research group was named the top R&D and high-tech business of 2004 by the Chamber of Commerce and Industry of Romania. The award is based on 2003 financial results including net revenues, net income and net income per employee. MDS Pharma Services also received this honor in 2001. “This second top ranking is particularly gratifying because it comes at a time when we are expanding clinical operations in Central and Eastern Europe,” notes Dr. Greg Voinov, general manager, Central and Eastern Europe and Asia Pacific. “Our strong presence and performance are very evident in Romania.”

Founded in 1997, the MDS Pharma Services Romanian office is staffed by 11 employees, including eight medically qualified staff members, and offers the full range of clinical research services, as well as submissions and regulatory affairs expertise. Key therapeutic areas include cardiovascular, metabolic endocrinology, dermatology, ophthalmology, respiratory, oncology, nephrology, gynecology, gastrointestinal, and central nervous system.

MDS Pharma Services offers a full spectrum of resources to meet the drug discovery and development needs of the pharmaceutical and biotechnology industries. With numerous facilities strategically located around the world, the company applies advanced scientific and technological expertise to each stage of the drug discovery and development process – Early Stage: lead optimization, pre-IND research, pharmaceutical and biopharmaceutical development, early clinical research (bioequivalence, phases I-IIa) and bioanalysis; and Late Stage: global clinical development (phases IIb-IV) and central lab. For more information, visit MDS Pharma Services' Web site at www.mdsps.com.

MDS Pharma Services is an integral part of MDS Inc. (TSX: MDS; NYSE: MDZ). MDS Inc. has more than 9,000 highly skilled people in 25 countries providing a diverse range of superior products and services to increase our customers' speed, precision and productivity in the drug development and disease diagnosis processes. We are a global health and life sciences company, recognized for our reliability and collaborative relationships. Please refer to our website at www.mdsintl.com to find out more about how we help create better outcomes in the treatment of disease.

For further information
please contact
Kim Peacock
MDS Pharma Services
621 Rose Street
Lincoln, Neb.
Tel: (402) 476-2811
and
visit our Web site at www.mdsps.com.