Spiriva worked wonders for my breathing but, after about 4 months of increasing leg and bone pain, terrible muscle cramps I decided to check on the side effects of it. Well guess what all of these and more were considered side effects of the drug. Wish one of the Dr. I saw in the 4 months had figured it out and maybe I would have been spared the pain and money it cost me during the last few months. I also had cataract surgury during this time and was very surprised that that was a problem since I have regular eye dr. visits and had been to get new glasses within the last 1 1/2 years. I stopped using the drug 7 days ago and am already having less and less pain in my legs daily. I am afraid to try any of the newer drugs now for fear of same results.