A series of 30 cases of cardiac tachyarrythmia were treated with amiodarone. The minimal agewas month

the maximal was 13 years. It showed significant therapeutic effect

especiallythe recent effectiveness was 93.3%. Among 3 cases of paroxysmal supraventricular tachycardia treated with amtodarone intravenously

2 cases showed rapid therapeutic effect. After follow-up part of the premature contractions relapsed

but they disappeared after readministration or restoring to original dose. The longest maintenance period was 16 months. A few side effects could be observed during oral amiodarone. They were bradycardia

prolonged PR or QT interval

rash

nausea

corneal microdeposits and seeing halos arround lights. No significant disturbance of thyroid function was observed. 1 case of complete atrioventricular block and hypotension occured after intravenous amiodarone. It was emphasized that the dosage and speed of the drug should be controlled during intravenous administration. It was relatively contraindicated in cases of cardiomyo-pathy and cardiomegaly.