Research: ERNST and PITTLER,

Listed in Issue 55


ERNST and PITTLER, Department of Complementary Medicine, School of Postgraduate Medicine and Health Sciences, University of Exeter UK performed a systematic review of the evidence from randomized controlled trials for or against the efficacy of ginger for nausea and vomiting.




Six studies met all inclusion criteria and were reviewed. Three were on postoperative nausea and vomiting; two of these suggested that ginger was superior to placebo and equally effective as metoclopramide. The pooled absolute risk reduction for the incidence of postoperative nausea, however, indicated a non-significant difference between the ginger and placebo groups for ginger: 1 g taken prior to the operation (absolute risk reduction 0.052). One study was found for each of the following conditions: seasickness, morning sickness and chemotherapy-induced nausea. These studies collectively favoured ginger over placebo.



Ernst E and Pittler MH. Efficacy of ginger for nausea and vomiting: a systematic review of randomized clinical trials. British Journal of Anaesthesia 84(3): 367-71. Mar 2000.

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