Levofloxacin
"I started Levaquin four days ago....noticed that I couldn't sleep the first night.  I have a sinus infection with a bad cough.  The cough has improved, but still have drainage and eye pain.  I asked the doctor for sleep medication which he gave me so I have no problem with that now.  Eating lots of yogurt and taking probiotics and drinking lots of fluids.  Still, the infection may not respond to this antibiotic as I have had the infection on and off for several months.  Used this antibiotic as a last resort.  Hopefully, it will clear up soon."