It lessens side-effects from treating hepatitis C.
Treatment for Hepatitis C infection is harsh — negative side effects include fatigue, nausea, muscle aches, loss of appetite, and depression — and lasts for months. Many people aren't able to finish their treatment course.
Marijuana also seems to improve the treatment's effectiveness: 54 percent of Hep C patients smoking marijuana got their viral levels low and kept them low, in comparison to only 18 percent of non smokers.