About 8 years ago, I had a bone density scan that showed some loss in my spine and hips. I began taking an over-the-counter calcium supplement from the drugstore. When the test was repeated, several years later, the numbers showed that the bone loss had progressed, despite the calcium supplementation. My doctor wanted me to start taking one of the "heavy hitter" medications that are given via injection, but I was very reluctant because of the possible side effects I had read about. I found out about Calciven, and started taking it daily, at the recommended dosage each day. When I had another bone scan last year, my spine was back within the normal range.