Marijuana has depressant, hallucinogenic and stimulant properties. However, it does not neatly fit into any single one of these categories. Many people refer to the drug as a depressant with hallucinogenic and stimulant qualities. Cannabis is a unique drug. While heroin is an opioid and cocaine is a stimulant, marijuana doesn't cleanly fit into a particular category of drugs. Marijuana can depress, excite and impair the central nervous system. This...