Beginning in October of 2004, I had a series of three injections of Kenalog in my left hip for back pain. The shots helped my pain tremendously, however, I had the most severe muscle cramping imaginable. I would get only two to three hours of sleep per night due to the cramping of various areas, such as my stomach, inner thigh close to the knee, ankles, toes etc. etc. etc. The cramping did subside within about four months. Recently I had another injection and of course the cramping is back. Thank you for all of these postings, I had no idea of the possible side effects and will NOT be getting another injection.