Why the long wait for new antidepressants

It is likely to be at least 10 years before any new generation of antidepressants comes to market, despite evidence that depression and anxiety rates are increasing across the world.

The depression drug pipeline has run dry partly due to a "failure of science", say psychiatrists. Another issue is that big pharma has been pulling investment out of research and development (R&D) in the neuroscience field because the profit potential is uncertain.