Ondansetron (Zofran) Correct Ondansetron (Zofran) is an antiemetic, whereas midazolam (Versed) is a benzodiazepine, and fentanyl (Sublimaze) and meperidine (Demerol) are opioid analgesics. More test answers on https://studyhippo.com/nclex-chapter-19-med-surg/