Dizziness and lightheadedness are most prominent among CNS effects. It can affect your thinking and caution needs to be taken while driving or other activities that require concentration., Make sure to tell your doctor if you have epilepsy as Levofloxacin 500 mg can provoke seizures., Avoid excessive sunlight exposure, apply sunscreens and Levaquin should be discontinued on the first sign of photo-toxicity (rash, itching, swelling or severe burning on exposure to sunlight)., Levaquin antibiotic should not be taken during pregnancy, during breastfeeding and in children under 18 years of age., Levaquin is mainly excreted by the kidney, so inform the doctor beforehand if you have kidney issues., Report if you have heart problems or are taking antiarrhythmic medicines., Immediately seek medical advice for symptoms mentioned above.