Antiemetic efficacy of tropisetron in patients failing previous antiemetic therapy.

Tropisetron was studied for efficacy and safety in 164 patients who were refractory to other antiemetic agents. 5 mg tropisetron was given intravenously, followed by 5 mg by mouth per day for 4 days. Complete prevention of nausea and vomiting was documented in 42% of patients on day 1 of cycle 1. Delayed nausea and vomiting were prevented in 41% in the first cycle. The antiemetic control did not decrease with subsequent cycles. Side effects ascribed to tropisetron were mild.