Sports drug has home in DublinA drug used by many leading sports figures, Androstenedione, which is banned by the International Olympic Committee, has been patented on the continent and in America by a Dublin company.

An Irish company, backed by associates of Deutsche Bank, owns patents to the substance found in the Michelle de Bruin urine sample taken on January 10, 1998.

Androstenedione is available over the counter in America and on the internet.