I went to the doctor on 3/12/07 (Monday) for a cold. I had laryngitis for several days. I started taking Levaquin 750 mg. on Monday. By Wednesday, I had severe pain in my joints in muscles especially my legs. It was so severe I was in tears and ready to go to the hospital. On Thursday I called the doctor and he told me to stop taking it and prescribed a new antibiotic. On Friday my pain started to subside somewhat, but it was still uncomfortable. BY the time I went to the doctor on Friday afternoon I had red blotches all over my arms and face. I wish I had done more research on this drug before taking it! I had to cancel a hair appoitnment that week and my hairdresser said she had the same exact symptoms and they only stopped when she stopped the medication.