The rhizomes and stems of ginger have assumed significant roles in Chinese, Japanese, and Indian medicine since the 1500s. The oleoresin of ginger is often contained in digestive, antitussive, antiflatulent, laxative, and antacid compounds.
There is supportive evidence from several clinical trials that ginger reduces the severity and duration of nausea/vomiting due to chemotherapy. Effects appear to be additive to prochlorperazine (Compazine®). The optimal dose remains unclear. Ginger's effects on other types of nausea/vomiting, such as postoperative nausea or motion sickness, remain indeterminate.
Ginger is used orally, topically, and intramuscularly for a wide array of other conditions, without scientific evidence of benefit.
Ginger may inhibit platelet aggregation/decrease platelet thromboxane production, thus theoretically increasing bleeding risk.
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