ondansetron
noun
on·dan·se·tron
| \ än-ˈdän-si-ˌträn, ōn-
\
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Medical Definition of ondansetron
: an antiemetic drug administered orally or parenterally in the form of its hydrated hydrochloride C18H19N3O·HCl·2H2O to prevent nausea and vomiting occurring especially as a consequence of cancer chemotherapy or surgery
Note: Odansetron is marketed under the trademark Zofran.