Marijuana, also known as cannabis, is a psychoactive drug produced by the Cannabis sativa plant. It contains over 480 constituents, with delta-9-tetrahydrocannabinol (THC) being the main psychoactive component responsible for most of the intoxicating effects that people seek. Marijuana can produce a range of effects that vary from person to person, which makes it difficult to classify it as a single type of drug. However, it can be classified as a depressant, stimulant, or hallucinogen, according to the University of Maryland. The effects of marijuana can vary widely from person to person, and distinct strains and types of weed can produce different effects. Marijuana is classified as a Schedule I substance by the U.S. Drug Enforcement Administration, which means it has a high potential for abuse and no accepted medical use.