Diabetes drug linked to reduced depression

A large data-base study finds metformin is the only anti-diabetic significantly associated with reduced risk of developing depressive symptoms

Metformin might reduce the risk of depression in patients with type 2 diabetes, a large-scale study suggests.

Researchers have drawn on population data for more than five million people living in Denmark in 2005 to look for associations between 20 of the most commonly used anti-diabetes drugs and depression.