Again thank you, is vitamin D12 of any value because I take 1000 IU of that a day? Also can taking advil on a regular basis cause more damage to the gallbladder? I am aware that it is not the best thing I should be taking with my other mediations. However, I have re-dislocated my left patella, which I had surgery on a few years ago, and have been taking advil to alleviate the pain and reduce the swelling. I am going to physical therapy for that now, and see the surgeon again in a few weeks to see if they need to redo the surgery.