Cannabis has been used as a medicine since ancient times.  The earliest reference of its use for healing purposes was in the Chinese Pharmacopeia, circa 1500 BC. Fast-forward 3,339 years to the year 1839.  This was when Dr. William Brooke O’Shaughnessy introduced Cannabis Indica, or “Indian hemp,” to the Western world. Immediately after it was … Continue reading Cannabis: A History of Its Medicinal Use in the United States