Bespoke medicine.

The article reports that the long-promised era of personalised medicine, when doctors will tailor treatments to match a particular patient's genes, is beginning to dawn. A gene test that could help ensure people are not under or overdosed with many drugs was launched in the European Union last week. The test, sold by Roche Diagnostics of Basle, Switzerland, is based on a DNA chip, or microarray. It reveals which variants people have of two liver genes. These variants determine how fast a person's liver breaks down almost a third of all drugs, including those used to treat disorders such as depression.