The harmful effects of drugs on people are reflected in the side effects, common side effects of moxifloxacin hydrochloride tablets include anemia, constipation, hypokalemia, and serious side effects include tendonitis and tendon rupture, peripheral neuropathy, and effects on the central nervous system. Common side effects of moxifloxacin hydrochloride: 1. blood and lymphatic system disorders: anemia; 2. gastrointestinal disorders: diarrhea, vomiting, constipation, abdominal pain, dyspepsia; 3. gastrointestinal system: increase in alanine aminotransferase; 4. metabolic and nutritional disorders: hypokalemia; 5. neurological disorders: headache, dizziness; 6. psychosis: insomnia. Serious adverse reactions:tendonitis and tendon rupture, peripheral neuropathy, central nervous system effects, exacerbation of myasthenia gravis, QT prolongation Other serious and sometimes fatal adverse reactions:Allergic reactions, risk of aortic aneurysm and entrapment, Clostridium difficile-associated diarrhea, dysglycemia, photosensitivity/photototoxicity, development of drug-resistant bacteria. Moxifloxacin Hydrochloride Tablets can treat infections that have been proven or strongly suspected to be caused by susceptible bacteria, including acute bacterial sinusitis, acute exacerbation of chronic bronchitis, community-acquired pneumonia, complicated skin and skin tissue infections, and bubonic plague. Moxifloxacin hydrochloride tablets are contraindicated for those who are allergic to any of the excipients of the product, and are contraindicated for pregnant and lactating women, as well as for children and adolescents at developmental stages; precautions are recommended for patients with complicated pelvic infections who are advised to consider the use of moxifloxacin hydrochloride injections for treatment. Moxifloxacin needs to be used under the guidance of a doctor, and the specific treatment plan needs to be guided by a doctor in order to better treat the disease and avoid adverse consequences.