RETRACTED ARTICLE: Combination Antiemetic Regimens for Prevention of Postoperative Nausea and Vomiting : Focus on High-Risk Patients
Abstract
None of the available antiemetics is entirely effective, perhaps because most of them act through the blockade of one receptor. There is a possibility that a combination of antiemetics with different sites of activity would be more effective than one drug alone for prophylaxis against postoperative nausea and vomiting (PONV).The clinical use of combined traditional antiemetics, including antihistamines (e.g. diphenhydramine), butyrophenones (e.g. droperidol) and benzamides (e.g. metoclopramide), for the prevention of PONV is limited because of the possibility of additive central nervous system toxicity, such as delayed emergence, drowsiness and extrapyramidal reactions. The efficacy of a combination of a serotonin 5-HT3receptor antagonist (ondansetron, granisetron or tropisetron) and dexamethasone is superior to that of 5-HT3receptor antagonists alone for the prevention of PONV, suggesting that dexamethasone enhances the antiemetic efficacy of 5-HT3receptor antagonists. The combination of a 5-HT3receptor antagonist with a traditional antiemetic (droperidol, metoclopramide or promethazine) acting at a different emetogenic receptor is more effective in reducing the incidence of PONV than each antiemetic alone acting at one recept...Continue Reading
References
Combination of ondansetron and dexamethasone in the prophylaxis of postoperative nausea and vomiting
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