Judy, Sorry I didn't mention the CR strength; I didn't know they came in anything but 25/100's, which is what I take. Your suggestions are very helpful, and I'd like to try them. I did take 10/100's for a long time, but had to take 1/2 pill so often it really interfered with my life. I like my response to the CR's better, too; not so many ups and downs. Perhaps a mixture of the two, as you suggested would help. Thanks Pat pine`