NCI Drug Dictionary

The NCI Drug Dictionary contains technical definitions and synonyms for drugs/agents used to treat patients with cancer or conditions related to cancer. Each drug entry includes links to check for clinical trials listed in NCI's List of Cancer Clinical Trials.

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ashwagandha root powder extract
A dietary supplement containing an extract powder derived from the root of the ashwagandha shrub with potential antineoplastic, antioxidant, immunostimulating and anti-angiogenic activities. Ashwagandha root powder extract contains numerous alkaloids, including withanine as the primary alkaloid, and steroidal lactone withanolides. The withanolides in this agent may suppress nuclear factor-kappaB activation and nuclear factor-kappaB-regulated gene expression, potentiating apoptosis and inhibiting tumor cell invasion. Cultivated in India and North America, ashwagandha (Withania somnifera Dunal or Indian ginseng) belongs to the Solanaceae (nightshade) family. Check for active clinical trials using this agent. (NCI Thesaurus)