NCIt definition : An indole derivative with antiemetic activity. As a selective serotonin receptor antagonist,
tropisetron competitively blocks the action of serotonin at 5HT3 receptors, resulting
in suppression of chemotherapy-and radiotherapy-induced nausea and vomiting. (NCI04);
Alternative definition : NCI-GLOSS: A substance used to treat nausea and vomiting caused by cancer treatment.
It is not available in the United States. Tropisetron is a type of serotonin receptor
antagonist and a type of antiemetic.;