Careful with Levofloxacin. Sometimes the side effects aren't worth the benefits. I took Levofloxacin to cure a bout of pneumonia. Sure enough, the infection cleared up, but my joints ached so bad I could not raise my arms to take a shower, put my clothes on, bend to tie my shoes, get in and out of a car quickly. Strength training and jogging was out of the question for a month.