Final answer:
ONDANSETRON HYDROCHLORIDE, also known as Zofran, is a medication used to prevent nausea and vomiting caused by cancer chemotherapy, radiation therapy, or surgery.
Step-by-step explanation:
ONDANSETRON HYDROCHLORIDE, also known as Zofran, is a medication used to prevent nausea and vomiting caused by cancer chemotherapy, radiation therapy, or surgery. It belongs to a class of drugs called serotonin 5-HT3 receptor antagonists. Ondansetron works by blocking the action of serotonin, which can help reduce nausea and vomiting.