Vertebrobasilar Insufficiency, also known as vertebrobasilar arterial insufficiency, is related to subclavian steal syndrome and basilar artery insufficiency. An important gene associated with Vertebrobasilar Insufficiency is GGT1 (Gamma-Glutamyltransferase 1). The drugs Paclitaxel and Albumin-Bound Paclitaxel have been mentioned in the context of this disorder. Affiliated tissues include thalamus and pons, and related phenotypes are homeostasis/metabolism and behavior/neurological