Marijuana plant

Cannabis is the most commonly used substance in Ontario, aside from alcohol and tobacco. When consumed, it causes short-term psychoactive effects, and is used for medical, non-medical and cultural purposes.

Cannabis refers to the whole plant (Cannabis sativa and Cannabis indica), and the substances extracted from it. Marijuana is a term used by many to refer to the dried leaves and flowering tops of the plant.

Parents: Talking to your kids about cannabis

Youth are particularly vulnerable to the effects of cannabis due to the developing brain. 81% of youth do not use cannabis, but it is still important to talk about it with your children.

For more information on cannabis and youth:


The Cannabis Act

Non-medical cannabis became legal across Canada on October 17, 2018.