Cetiran is a cardiac drug, also known as deacetyl trichothecene injection, mainly used for acute heart failure, progressive exacerbation of chronic heart failure, rapid atrial fibrillation, atrial flutter and paroxysmal supraventricular tachycardia, generally can be given 0.2mg-0.4mg. in the ward generally take the way into the throat, can be quickly injected, so that you can achieve the purpose of rescue acute disease. Contraindications: First, those who have been poisoned, especially digitalis poisoning, like digoxin poisoning, etc., are not allowed to use. Second, patients with ventricular tachycardia and ventricular fibrillation are not allowed to use. Third, obstructive hypertrophic cardiomyopathy can not be used. Fourth, preexcitation syndrome with atrial fibrillation or atrial flutter can not be used. Fifth, it cannot be used in the acute phase of acute myocardial infarction.