RIO DE JANEIRO, BRAZIL - Research developed at the University of Brasília (UnB) is testing the effects of cannabidiol -- a substance derived from Cannabis sativa, known as marijuana -- in the treatment of crack addicts.
Some three years ago, professor and researcher Andrea Gallassi requested the National Health Surveillance Agency (ANVISA) to import the extract and test it on addicts of the synthetic drug.
According to Gallassi, the substance has the potential to relieve virtually all symptoms of abstinence, such as anxiety, insomnia, lack of appetite, and the overwhelming craving for the use of the narcotic.
"Today, we do not have . . .