Medical marijuana shows some effectiveness in helping treat chronic pain but there is less evidence of its success in warding off nausea or helping ill patients gain weight.
Uruguay on Friday took a major step in setting rules for the government-regulated sale of marijuana, a daring experiment supported by the country's iconoclastic president.
Several thousand people came out in Canada's biggest cities on Sunday to call for the legalization of marijuana -- a yearly protest that happens internationally on April 20.
Oscar-winning actress, comedienne and talk-show host Whoopi Goldberg sang the praises of marijuana inhaled through a pocket vaporizer on Thursday as she made her debut as an online pot columnist.
Mexican authorities discovered at least 17 bodies dumped in an unmarked grave outside the western city of Guadalajara after arresting a suspected drug trafficker, a state prosecutor said Friday.
High-profile Australian drug trafficker Schapelle Corby could earn millions of dollars for a tell-all story if she is released from an Indonesian jail Friday, with a bidding war reportedly in full swing.
Pop star Justin Bieber was charged with driving under the influence after police caught him drag racing in Miami Beach early Thursday -- allegedly after drinking and smoking marijuana.
A naturally occurring hormone acts as spontaneous defense in the brain against the high caused by marijuana and could be useful in preventing addiction, researchers said Thursday.
Uruguay's Senate has approved ground-breaking legislation legalizing marijuana, becoming the first nation in the world to oversee the production and sale of the drug.
The Mexico City council is considering the legalization of cannabis plants and the creation of private marijuana smoking "clubs" as it mulls controversial legislation to liberalize consumption.
A Toronto area mechanic who posted a Twitter message seeking marijuana to alleviate boredom at work this week got an unexpected reply -- from police with an apparent sense of humour.