Dear friend, During the 19th century, cannabis tinctures were common on pharmacy shelves throughout North America and administered as a pain killer (aspirin didn’t become common until the early part of the 20th century). Osteoarthritis is the most common type of arthritis and occurs when a person’s cartilage simply wears away. It can affect the knees, hips, lower back, hands, and neck. Osteoarthritis is basically a sign of aging and quite common. Unfortunately, no cure exists. Treatments like cannabis have been shown to reduce swelling in the joints and relieve pain for osteoarthritis sufferers. You own experience has shown you that it gives you relief. As long as you do not run afoul of the law there should be no problem, as there was none previously.