I took levaquin for 4-5 days more than one year ago to treat a sinus infection. I began to have pain in my ankles, knees, hips, wrists, elbows after just 2 days on the antibiotic. To inquiry, my doctor told me the tendon pain was NOT a side effect of levaquin. By speaking to my pharmacist, I learned she was very wrong, and discontinued the drug. More than one year later, I am still in pain, and have difficulty walking.