Is it marijuana or heroin or cocaine that is a narcotic?

Answer 1

If you are asking which takes the least amount to become physically addictive it is heroin. Heroin makes significant changes to the human body even in small amounts. Actually if your talking about the hardest habit to quit, its cigarettes, but heroin comes in second.

Answer 2

All of the above are accredited to being narcotics though truly only heroine is. The true definition of a narcotic is a drug deprived from the drug opium, such as opium, heroine, and morphine.

Answer 3

Heroin is the narcotic. Cocaine is a stimulant. Marijuana fits slightly into most drug categories, and it is often classified as a hallucinogen.