A pilot study of high-dose domperidone as an antiemetic in patients treated with cisplatin.

A dose-finding multicenter study was undertaken to evaluate the antiemetic efficacy of domperidone, an antidopaminergic drug, which has been proposed as a suitable alternative to high-dose metoclopramide in the control of cisplatin-induced nausea and vomiting. Forty-five patients were treated with different increasing high doses of domperidone (30, 60, 120 or 150 mg) administered by i.v. infusion over 20 min every 2 hr for a total of four doses for each patient, starting 30 min before chemotherapy. The number of episodes of emesis, the duration of nausea and vomiting and side-effects were recorded. Results do not suggest any specific difference in protective effect between the regimens tested. Moreover, occurrence of serious side-effects indicated that the safety of high-dose domperidone is doubtful.