If there are indications can be eaten, the treatment of cardiac arrhythmia generally do not need to take moxifloxacin hydrochloride, patients need to follow the doctor’s instructions for rational drug therapy. Usually moxifloxacin hydrochloride is mainly used in the clinic to treat adults with upper and lower respiratory tract infections, mainly including acute exacerbation of chronic bronchitis, community-acquired pneumonia, acute sinusitis, etc., and can also be used to treat skin and soft tissue infections. However, the drug has no significant effect on cardiac arrhythmias. And patients with arrhythmia can follow the doctor’s instructions for symptomatic treatment, generally can use quinidine, procainamide, lidocaine, propafenone and other anti-arrhythmic drugs for treatment, while patients can also use atenolol, propranolol and other beta-blockers for treatment. At the same time, patients can also be used with the use of amiodarone, brompheniramine and other prolongation of the action potential time course of the drug or verapamil, diltiazem and other calcium channel blockers treatment. The medication should be used in strict compliance with the doctor’s prescription, and the underlying disease should be actively treated if necessary.