“…In addition to the phenothiazine derivatives [8], a number of other agents or their derivatives have been studied, including: trimethobenzamide [9], dimenhydrinate [5], benzquinamide [6,10], tetrahydrocannabinol [11 13], nabilone [14], metoclopramidc [15,16], halopcridol [17,18], droperidol [19], pyridoxine [6], and various gluco corticoids [20 22],…”