Levofloxacin Hydrochloride may have significant teratogenic effects on the fetus in the abdomen of pregnant women and affect fetal growth and development. Levofloxacin hydrochloride belongs to the quinolone class of drugs, clinical studies show that the quinolone group in the drug can form a complex with the magnesium ions in the cartilage and deposited in the articular cartilage, resulting in a lack of local magnesium ions and resulting in cartilage damage, and the use of this drug by pregnant women can lead to malformation of the skeletal development of the fetus with obvious teratogenic effects. Therefore, levofloxacin hydrochloride is contraindicated in pregnant women. In addition, levofloxacin hydrochloride is also contraindicated in children, psychiatric disorders, epilepsy, pregnant women, and allergy patients. Taking Levofloxacin Hydrochloride may cause stomach upset, nausea, vomiting, abdominal pain, diarrhea, dizziness, headache, mental abnormalities and other adverse reactions. Therefore, pregnant women should not use Levofloxacin Hydrochloride on their own. Pregnant women should go to the hospital in time when they need to take the drug for any uncomfortable symptoms, and use the drug according to the doctor’s instruction, so as not to cause serious adverse consequences.