Final answer:
Ondansetron is classified as an antiemetic and is prescribed for patients undergoing chemotherapy to manage nausea and vomiting.
Step-by-step explanation:
The medication ondansetron is classified as an antiemetic. An antiemetic is a type of medication that helps prevent or relieve nausea and vomiting. It is commonly prescribed for patients undergoing chemotherapy to manage the side effects of the treatment. Ondansetron works by blocking certain receptors in the brain that trigger these symptoms.
For example, when a patient undergoing chemotherapy receives ondansetron, it helps to reduce the feeling of nausea and vomiting that can be caused by the treatment.