The U.S. Food and Drug Administration (FDA) has granted GW Pharmaceuticals Plc's experimental cannabis-derived epilepsy drug "orphan" status for a third group of patients affected by a rare form of the disease.

As Congress members become more aware of changing public and political opinion on cannabis, federal leadership is still sorely lacking, which plays out in the ongoing conflict between state and federal marijuana policies.

The first-ever National Cannabis Festival was held in D.C. on Saturday -- but organizers told people to leave their marijuana at home before they attended the event.

What’s the weed equivalent to an alcoholic drink?

Clinton says she'd make major reforms to cannabis laws if elected president.

Cannabis use dates back generations in Cambodia, including as herb in traditional Khmer cuisine.

Campaigning for president in the liberal oasis of Madison, U.S. Sen. Bernie Sanders of Vermont rose to the defense of marijuana.

Rabbi Chaim Kanievsky has ruled that medical marijuana is kosher for Passover.

The Drug Enforcement Agency has given its blessing to a study on the effect of medical marijuana on post-traumatic stress disorder, the first randomized, controlled research in the U.S. for PTSD that will use the actual plant instead of oils or synthesized cannabis.