My mother was on Levaquin, 500 mb orally, once per day. This was the only new drug that she was prescribed. After several days, she began to develop numerous small sores inside her mouth, especially inside her lips. She also developed increasing difficulty swallowing. While she seemed to have increasing energy in the mornings, after taking the pill she became lethargic and felt exhausted. At our insistence, the drug was discontinued however the following night she developed cardiac difficulties, requiring a pace maker and died on the third day of respiratory arrest. She was 86 and active with no history of any of these symptoms or conditions prior to receiving Levaquin. Levaquin may be a fine drug, but the health care providers need to monitor much more closely for side effects.