http://www.medications.com/effect/view/37132 I was prescribed Leavaquin for pneumonia - 500mgs for 5 days. Have taken it in the past for pneumonia with no observable side effect except the dry mouth. However, this time, I have nausea, diarrhea, excruciating pains in my feet going up to both knees, (de Sun, 07 Dec 2008 00:17:11 -0500 http://www.medications.com/effect/view/37132?item=15081 I also took Levaquin before with minor side effects= thought it was a pretty good drug for the infection. But as you can see from my posting above yours, the effects worsened this time around, and worsened each day I took it. Never taking it again. http://www.medications.com/effect/view/37132?item=15081