“A non-toxic, non-psychoactive compound in marijuana may block the progress of metastatic breast cancer, according to a new study by researchers in California.

“This is a new way to treat a patient that is not toxic like chemotherapy or radiotherapy. It is a new approach for metastatic cancer,” said lead researcher Sean D. McAllister, an associate scientist at the California Pacific Medical Center Research Institute in San Francisco.

The compound found in cannabis, called cannabidiol (CBD), inhibits a gene, Id-1, that researchers believe is responsible for the metastatic process that spreads cells from the original tumor throughout the body.”

http://abcnews.go.com/Health/Healthday/story?id=4509456&page=1