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Marijuana

Is Marijuana Medicine?

The marijuana plant contains several chemicals that may prove useful for treating a range of illnesses or symptoms, leading many people to argue that it should be made legally available for medical purposes. In fact, a growing number of states (20 as of March 2014) have legalized marijuana’s use for certain medical conditions.

Marijuana

Explores the latest research on marijuana, including the scope of marijuana use in the U.S., health consequences, its effects on every-day activities, available treatments.

Published: October 2002
Revised: July 2012

Marijuana: Facts for Teens

Presented in question-and-answer format and targeted to teens, provides facts about marijuana and its potential harmful effects.

Published: April 2001
Revised: July 2013

Spice ("Synthetic Marijuana")

"Spice" refers to a wide variety of herbal mixtures that produce experiences similar to marijuana (cannabis) and that are marketed as "safe," legal alternatives to that drug. Sold under many names, including K2, fake weed, Yucatan Fire, Skunk, Moon Rocks, and others — and labeled "not for human consumption" — these products contain dried, shredded plant material and chemical additives that are responsible for their psychoactive (mind-altering) effects.

Marijuana

Marijuana refers to the dried leaves, flowers, stems, and seeds from the hemp plant Cannabis sativa, which contains the psychoactive (mind-altering) chemical delta-9-tetrahydrocannabinol (THC), as well as other related compounds. This plant material can also be concentrated in a resin called hashish or a sticky black liquid called hash oil.

High School and Youth Trends

Every year, the Monitoring the Future (MTF) survey measures drug, alcohol, and tobacco use and related attitudes among 8th, 10th, and 12th graders. Following are facts and statistics about youth substance use from the 2013 MTF report

Drugged Driving

Use of any psychoactive (mind-altering) drug makes it highly unsafe to drive a car and is illegal—just like driving after drinking alcohol. Drugged driving puts at risk not only the driver but also passengers and others who share the road.

Marijuana: Facts Parents Need to Know

Brochure, in question-and-answer format, that provides facts about marijuana for parents and offers tips for talking with their children about the drug and its potential harmful effects.

Published: April 2001
Revised: March 2014

Marijuana

Brief Description

Marijuana is a dry, shredded green and brown mix of leaves, flowers, stems, and seeds from the hemp plant Cannabis sativa. In a more concentrated, resinous form, it is called hashish, and as a sticky black liquid, hash oil. The main psychoactive (mind-altering) chemical in marijuana is delta-9-tetrahydrocannabinol, or THC. Learn more about marijuana

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Commentary: More research needed into marijuana’s effects on brain development and function

A journal commentary by Harvard researcher and NIDA grantee Bertha K. Madras stresses the importance of a large scale longitudinal study to better assess the effects of marijuana use on human brain development and function. Dr.


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