I started taking levaquin (250mg) for 3 days because of a kidney stone. After the first day I noticed soreness in the back of my neck, puffiness in my face and crazy dreams. I called the pharmacist and she said it's really not a good prescription for the elderly or anyone with kidney trouble. I'm a 42 yr. old female with infrequent UTI's and really think they could have prescribed something else. Glad I found this site so that I know to stay away from this stuff!!