 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST]  sucralfate, vitamins/minerals (including iron, zinc), and products that contain magnesium, aluminum, or calcium (such as antacids, didanosine solution, calcium-enriched juice), among others. Ask your pharmacist about all the products you take. The dosage and length of treatment are based on your medical condition and response to treatment. In children, the dosage is also based on weight. For the best effect, take this antibiotic at evenly spaced times. To help you remember, take this medication at the same time every day. Continue to take this medication until the full prescribed amount is finished, even if symptoms disappear after a few days. Stopping the medication too early may result in a return of the infection. Tell your doctor if your condition lasts or gets worse.The side effects of Levofloxacin Oral: See also Warning section. Nausea, diarrhea, headache, dizziness, lightheadedness, or trouble sleeping may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly. Remember that this medication has been prescribed because your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects </s>