
Guidelines for the management of chemotherapy-induced emesisare necessary to help clinicians match the emetogenicity of antineoplasticagents with the abundance of antiemetic agents now available. Numerousguidelines for antiemetic therapy currently exist, but compliancewith them is inconsistent, in part because optimal antiemetic protectionis not yet possible, even with the best guidelines. For this reason,guidelines must be dynamic and evolve as knowledge increases.Revision of antiemetic guidelines should be prompted by changes ingeneral principles of treatment, not changes in specific details. Recentrecognition of the unique benefits of incorporating selective neurokinin-1 receptor antagonists into regimens for the prevention of nauseaand vomiting caused by highly emetogenic chemotherapy, particularlyin delayed emesis, justifies modification of existing antiemeticguidelines.
