http://www.medications.com/effect/view/22916 My doctor prescribed Levaquin 500mg as the 3rd antibiotic to treat a sinus infection that just would not go away. Unfortunately I'd taken 12 of the 14 pills prescribed before I found this site while trying to figure out what was worng with me. I'm experie Thu, 18 Oct 2007 09:05:27 -0400 http://www.medications.com/effect/view/22916?item=2451 I also had 3 rounds of antibiotics for sinusitis and was put on Levaquin on Monday - Tuesday, my back hurt so badly I couldn't sit still, I had feelings of doom, nausea, headache and neck pain. I stopped taking the medication (only took two) and today, I http://www.medications.com/effect/view/22916?item=2451