Number of deaths attributable to selected substances in a typical year:

Tobacco........................................... .........340,000 - 395,000
Alcohol (excluding crime/accidents).............125,000+
Drug Overdose (prescription)......................24,000 - 27,000
Drug Overdose (illegal)..............................3,800 - 5,200
Marijuana......................................... .........0

I can't find the exact number, but to get OD with Cannabis, human would have to take like 30 Kg at once.



The same plant, known as hemp, has an estimated 50,000 non-drug commercial uses including paper, textiles, fuels, food and sealants, but these uses are also banned by existing laws.