The standard frontline chemotherapy for patients with AML consists of cytarabine given as a 7 day continuous infusion plus 3 days of an anthracycline, most commonly daunorubicin, on days 1-3. This is known as the 3+7 regimen. Antiemetic treatments are usually given to patients for nausea and vomiting. Granisetron (a 5-HT3 receptor antagonist) is used on the 3 daunorubicin days and other antiemetics can be used for breakthrough nausea/vomiting.