I have fibromyalgia . I tried lyrics. My vision changed for the worse. I can not read this tiny letters very well. ,I had glasses but now have gotten really bad and continue to do so. I never wore glasses until about age 55. I also know someone who went totally blind after using lyrics. I tell everyone not to use it, I take ultram for pain, for fibro. But the generic doesn’t work as well. Been taking ultram about 25 years . I hate to see the commercial on TV. I know a lot of people who had really bad results.