[Ondansetron--a new anesthesia relevant antiemetic?].

Ondansetron is a new selective serotonin-3-receptor antagonist which has proved to be effective in chemotherapy-induced nausea and vomiting. Initial studies evaluating the efficacy and safety of this substance for the treatment and prevention of postoperative nausea and vomiting yielded promising results. However, ondansetron's exact role in the perioperative setting still remains to be determined.