Although ginger is often recommended as a simple remedy for chemotherapy nausea, ginger capsules don’t seem to work any better than a sugar pill to improve the effects of standard nausea drugs.
In a randomized study, 162 patients received either ginger capsules or a placebo for chemotherapy-induced nausea and vomiting. Neither the patients or their doctors knew which they were getting. All patients were already receiving an 5-HT3 inhibitor such as Zofran® or Kytril®. Some were also being treated with Emend® (aprepitant).