http://www.medications.com/effect/view/25352 I have had an extremely stubborn sinus/respiratory infection for around 12 weeks or so. Weeks ago I finished a round of antibiotics (Doxycycline (sp?)) without much improvement. Went to ENT and he prescribed Levaquin 500mg once daily for 21 days. I have Sat, 01 Dec 2007 08:15:58 -0500 http://www.medications.com/effect/view/25352?item=3187 I was on levaquin for pneumonia for 10 days.After I was done taking it,about 5 days later,I developed pain i my feet.It is now in my feet,knees,hands,.It is helped by ibuprophen.When I went to the doctor,he said yes this is a common side effect of Levaquin http://www.medications.com/effect/view/25352?item=3187