Levofloxacin tablets can be taken by cardiac patients. Levofloxacin tablets are quinolone antibacterial drugs, commonly used in the treatment of respiratory tract infections, genitourinary tract infections and gastrointestinal tract infections caused by sensitive bacteria, with good anti-inflammatory effect. Levofloxacin is generally not harmful to the heart, nausea, vomiting, abdominal pain, diarrhea and other gastrointestinal symptoms may occur during the administration of this drug, but also affects the nervous system insomnia, dizziness, headache and other symptoms. In addition, it is forbidden for those who are allergic to quinolones, infants and pregnant women; breastfeeding should be stopped when taking it; the elderly often have reduced renal function, and should pay attention to reducing the dosage. If there is levofloxacin indications, it can be taken under the guidance of a doctor for treatment, to avoid blind use of drugs.