In the Atlanta area this spring there has been a terrible bronchial virus going around. I took Levaquin for ten days and it finally snuffed it out. I had zero side effects and all I have to say is that it worked for me. I am a very active person and it took something strong to get me better. My doc told me that it was strong but that I needed it to get rid of this bug. He told me to stay active while I took it and more than anything else to take it with food. I endorse this product if you use it right.