Patients prescribed mirtazapine or venlafaxine are more likely to attempt or complete suicide, a UK study has found. Data were obtained from more than 600 contributing practices that use the EMIS medical records system. There were 238,963 participants who were aged between 20 and 64 years and had a first recorded diagnosis of depression between 1 January 2000 and 31 July 2011. The follow-up period ended on 1 August 2012.