Patients with this genotype have an increased likelihood of responding to elitriptan when treating (condition: cluster headache).
References
Schurks M, Kurth T, Stude P, Rimmbach C, de Jesus J, Jonjic M, Diener HC, Rosskopf D: G protein beta3 polymorphism and triptan response in cluster headache. Clin Pharmacol Ther. 2007 Oct;82(4):396-401. Epub 2007 Mar 14. [Article]