http://www.medications.com/effect/view/38710 I started taking Levaquin 500mg on Jan. 28,2009 after having it prescribed fby my cardiologist for a lung infection, after he conducted blood, urine and heart ecosonogram tests over the three previous days. I had an infection, everything else was fine. I Fri, 06 Feb 2009 17:24:39 -0500 http://www.medications.com/effect/view/38710?item=16837 I started Levaquin four days ago for bronchitis. The first night I had insomnia, the second day I was fine and since then every time I take a pill I get nausea and feel lightheaded for over three hours. I've also been experiencing leg cramps. http://www.medications.com/effect/view/38710?item=16837 Sat, 07 Feb 2009 10:22:05 -0500 http://www.medications.com/effect/view/38710?item=16848 Your doctor should be ashamed of him/herself for prescribing such a dangerous medication to someone with a pre-existing heart condition. Doctors are so ignorant about the side effects of this medicine. It does not surprise me that your doctor denied that http://www.medications.com/effect/view/38710?item=16848 Sat, 21 Feb 2009 13:17:47 -0500 http://www.medications.com/effect/view/38710?item=17306 I had the same problem with Levaquin, It has a cardio effect and will cause a Qt stroke volume problem and irregular heartbeats as well as central nervous disorder problems. Since I last took it almost two years ago I have not felt normal and have had nu http://www.medications.com/effect/view/38710?item=17306