Article on CNN re paper presented at a major cancer conference: ginger is often effective in preventing chemo nausea, hence may be helpful to folks here. Apparently works in fairly low doses of 1/4 - 1/2 teaspoon, and higher doses not more effective. http://www.cnn.com/2009/HEALTH/05/15/ginger.chemo.nausea/index.html
i've used ginger as an anti nausea ingredient in mushroom tea for years...works AMAZINGLY. i have a friend who throws up VERY easily, and some grated fresh ginger will allow him to keep 7 grams of mushrooms down...same basic mechanics, only with cacti.