Ondansetron for Injection 40 mg per 20 mL Multi-Dose Vials, 10/TrayAthenex Ondansetron for Injection 40 mg per 20 mL Multi Dose Vials used to prevent nausea and vomiting caused by cancer chemotherapy and surgery. Ondansetron is in a class of medications called serotonin 5 HT3 receptor antagonists. It works by blocking the action of serotonin, a natural substance that may cause nausea and vomiting. Brand: Athenex PharmaceuticalNDC: 70860 0777 21UPC: 203708 60777218Size: 10 mLStrength: 40 mg per 20 mLCount: 10 Multiple