Male patients with this genotype have an increased risk of (condition: suicide) with (drug: citalopram).
References
Perlis RH, Purcell S, Fava M, Fagerness J, Rush AJ, Trivedi MH, Smoller JW: Association between treatment-emergent suicidal ideation with citalopram and polymorphisms near cyclic adenosine monophosphate response element binding protein in the STAR*D study. Arch Gen Psychiatry. 2007 Jun;64(6):689-97. [Article]