There have been dozens of researches showing that THC and other cannabinoids are effective in killing cancer cells

http://metrocannabis.org/
There have been dozens of researches showing that THC and other cannabinoids are effective in killing cancer cells
Although the degree of the medicinal value of cannabis has been contested, and in spite of the opposition to research and use put forward by most national governments, it does have a number of well-documented beneficial results. Among these are: the reduction of nausea and vomiting and stimulation of hunger in chemotherapy and AIDS patients