答案:【计分规则】: (1) Adverse reactionsCardiotoxicity: The most serious is cardiotoxicity. Causes supraventricular or ventricular arrhythmias (premature ventricular contraction is more common and early); atrioventricular block; sinus bradycardia;Gastrointestinal reactions: nausea, vomiting, abdominal pain, diarrhea, etc.;Central nervous system reactions: headache, dizziness, hallucinations, decreased vision, yellow, green vision, etc.(2) Treatment of poisoning: Withdrawal, potassium salt can be taken orally or intravenously to prevent the development of toxicity by inhibiting the combination of cardiac glycosides with Na+-K+-ATPase. rapid arrhythmias such as ventricular tachycardia and ventricular fibrillation can treatment with phenytoin or lidocaine. Atropine is commonly used for bradyarrhythmias, intravenous injection of digoxin antibody Fab fragments is used for life-threatening patients.