http://hepatitiscresearchandnewsupdates.blogspot.com/2013/07/marijuana-may-not-exacerbate-liver.html#.UfMrwaysphs
NEW YORK (Reuters Health) Jul 25 - Marijuana smoking doesn't appear to accelerate liver disease progression in HIV patients with hepatitis C coinfection, a new prospective study from Canada has found.
"Based on previous studies, physicians have counseled patients that marijuana is harmful to their livers," Dr. Marina Klein, of McGill University Health Centre in Montreal, told Reuters Health by email.
"The results of our study suggest that physicians can reassure their patients that marijuana use, while it may have other deleterious effects, likely will not make their liver disease progress more rapidly," said Dr. Klein, who led the study, published online June 28 in Clinical Infectious Diseases.
Patients in Canada can apply for permission to use marijuana for medicinal purposes. The United States has conflicting marijuana laws. The federal government outlaws it, but 18 states allow for medicinal use, including two, Colorado and Washington, that also allow for recreational use.