My husband was given Levaquin 750 because he had pnuemonia and was running fevor of102. He was very lucid for most of the day and quickly seemed confused. He wanted to get out of bed, he thought he was home, he asked over and over that he wanted to get out of here,the changes happened quickly. It was very upsetting to us that witnessed the change. He had a nice dinner and lunch of puried and thickened food because of a swaulling problem and cough.