NCIt definition : An indole derivative and a potent serotonin 5-HT3 receptor antagonist with anti-emetic
property. Dolasetron blocks the activity of serotonin released from the enterochromaffin
cells of the small intestine by selectively inhibiting and inactivating 5-HT3 receptors
located on the nerve terminals of the vagus nerve in the periphery and centrally in
the chemoreceptor trigger zone of the area postrema. This results in suppression of
signalling to trigger chemo- and radiotherapy induced nausea and vomiting.;
Alternative definition : NCI-GLOSS: The active ingredient in a drug used to treat nausea and vomiting caused
by cancer treatment. Dolasetron is a type of serotonin receptor antagonist and a type
of antiemetic.;