My mother took Levaquin three times for a unirary tract infection. The first time she could not sleep all night. So we discontinued, and got a prescription for Bactrim, which cleared the infection up. The infection came back a few weeks later (pain on urination)and since we did not have another prescription, she took one tablet of Levaquin and it seemed to clear up the infection, and she did not have sleep problems, but did complain about joint pain, which we did not associate with Levaquin. The infection came back again, and she took another Levaquin last night--she slept OK, but this morning she felt dizzy, but blood pressure was OK, and could not stand up, and toppled over, with weakness in her legs. We attribute this to the Levaquin. Do not take this again. The doctor precribed Cipro, but I don't know if we want to take Cipro, since my late father had a seizure taking Cipro (he eventually died from the effects of all the antibiotics the doctors gave him). It is unfortunate that one has to be so careful about drugs precribed by the doctors.