Pharmacology A cancer patient who is on cisplatin therapy develops severe vomiting on the 1st day of treatment, drug indicated to treat this is: A Aprepitant. B Ondansetron C Fosaprepitant. D All of the above. 💡 Explanation A cancer patient who is on cisplatin therapy develops severe vomiting on the 1st day of treatment, drug indicated to treat this is: ✓ Correct Answer: B. Ondansetron