Ginger, valerian, comfrey "informational" monographs published by USP.

GINGER FOR NAUSEA, VOMITING REQUIRES FURTHER STUDY before the plant can be recommended for use in humans, the U.S. Pharmacopeia states in an "informational" monograph released in January. Upon considering available literature on ginger, USP advisory panels suggest future research, "including at least one adequate and well-controlled clinical trial," be conducted to examine the botanical's reported uses for the treatment and prevention of nausea and vomiting related to motion sickness. The monograph is published in the monthly update to the USP DI compendium of drug, nutritional and therapeutic information.