Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Used to treat a wide range of diseases since ancient times, medical cannabis (also known as medical marijuana) is still prescribed in several countries to relieve the suffering of patients affected by chronic illnesses. The controversial medicine is administered to provide palliative benefits to individuals affected by grave diseases such as cancer and AIDS. Learn more about the medical use of cannabis, its therapeutic properties as well as legality of the practice in this book.