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marijuana in a petri dish on a blue background showing the chemical structure of THC
DEA Moves Toward Approving More Research Marijuana Growers
A regulatory change initiated during the Obama administration appears set to be put into practice, allowing more than one supplier of cannabis research products.
DEA Moves Toward Approving More Research Marijuana Growers
DEA Moves Toward Approving More Research Marijuana Growers

A regulatory change initiated during the Obama administration appears set to be put into practice, allowing more than one supplier of cannabis research products.

A regulatory change initiated during the Obama administration appears set to be put into practice, allowing more than one supplier of cannabis research products.

medical marijuana

Value of Medical Marijuana for Mental Health Questioned
Jef Akst | Oct 29, 2019 | 2 min read
A meta-analysis of more than 80 studies from the past four decades finds weak evidence to support the use of medicinal cannabis to treat anxiety, depression, and other mental health disorders.
State Marijuana Legalization Aids Research Very Little
Ashley Yeager | Sep 20, 2019 | 7 min read
Recent federal announcements serve as reminders that in the US policy continues to outpace science when it comes to cannabis.
vape pen and marijuana
Marijuana Unsafe During Pregnancy or Adolescence: Surgeon General
Nicoletta Lanese | Aug 30, 2019 | 2 min read
The federal government cautions that the drug can affect brain development in both teens and fetuses.
Big Pharma Picks up on Medical Marijuana
Ashley P. Taylor | Dec 19, 2018 | 1 min read
A Novartis subsidiary is partnering with a Canadian cannabis company to sell medical marijuana worldwide.
Zimbabwe’s Medical Marijuana Future Uncertain
Tonderayi Mukeredzi | Sep 12, 2018 | 2 min read
The country is the second in Africa to permit cannabis cultivation, but months after approval there’s been little uptake by farmers and no scientific proposals.
Canada Could Come to the Fore in Cannabis Research
Ashley Yeager | Jul 6, 2018 | 4 min read
The coming legalization of recreational marijuana is already increasing funding for studies, but regulations on such research have been slow to change.
FDA Approves First Marijuana-Derived Drug
Shawna Williams | Jun 25, 2018 | 2 min read
As the CBD-based medication enters the market, the agency promises a crackdown on producers of cannabidiol products that make unproven claims.
Cannabidiol Eases Epileptic Seizures: Study
Aggie Mika | May 26, 2017 | 1 min read
Around 40 percent of children with an uncommon disorder had 50 percent fewer seizures while taking the marijuana derivative.
Cannabinoid Treatment Improves Cognition in Old Mice
Diana Kwon | May 8, 2017 | 3 min read
In young mice, THC had the opposite effect.
Marijuana Research Still Stymied by Federal Laws
Bob Grant | Jan 23, 2017 | 5 min read
US scientists continue to have a hard time getting funding to study the health impacts of the drug. But cannabis research in Canada—where medical marijuana is legal nationwide—is different story.
National Academies Detail the State of Weed Science
Bob Grant | Jan 12, 2017 | 2 min read
A new report summarizes what we know about the impacts of marijuana use, as more states have legalized the drug for both medical and recreational purposes.
Notable Science Quotes
The Scientist | Jan 1, 2017 | 2 min read
Science under Trump, gene drive, medical marijuana, and more
Capsule Reviews
Bob Grant | Jul 1, 2015 | 3 min read
Stoned, Anxious, The Deeper Genome, and Testosterone
Obama Administration Eases Marijuana Research Requirements
Amanda B. Keener | Jun 29, 2015 | 1 min read
Scientists wishing to study marijuana’s health effects may now forgo a review by Public Health Services.
Edible Marijuana Labels Wrong
Bob Grant | Jun 24, 2015 | 2 min read
The dosage information on 83 percent of 75 edible marijuana products legally sold in Seattle, San Francisco, and Los Angeles was incorrect.
Cannabidiol Quells Seizures
Jef Akst | Apr 14, 2015 | 1 min read
The marijuana-derived compound shows promise in treating rare forms of epilepsy that cause children to have seizures multiple times a day.
Medical Marijuana: Where’s the Data?
Bob Grant | Jun 30, 2014 | 2 min read
As more states legalize therapeutic cannabis, some caution against overprescribing the drug, the benefits of which have not been rigorously tested in clinical trials.
NIDA Weighs In on Pot
Bob Grant | Jun 9, 2014 | 2 min read
Addiction is one among many potential adverse effects of the increasingly popular drug, according to the National Institute on Drug Abuse.
Kerfuffle Over Marijuana Claim
Bob Grant | Aug 20, 2013 | 2 min read
A pro-pot group airs an ad stating marijuana is “less toxic” than alcohol, but a federal science agency disputes the assertion.
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