and are blue, is there a difference other than the numbers and color that I should be aware of? I have never had blue ones, and it scares me to take something that is of a different color than the ones I normally receive from the pharmacy. I have to take these 5 times a day for severe back pain and knee pain, which I have had several surgeries for, and just worried before I take them, as I am able to do normal things, I need to know if these will affect the day to day activities that I do, so I may take the time needed to adjust myself to the effects of them.