The results obtained were as follows;

1) The clinical improvement was obsebed in 8(80.8%) of 10 and 9(88.9%) of 9 patients at 2 and 10 weeks after oral amlodipine.

2) The systolic and diastolic blood pressure was decreased significantly(136.0±16.5mmHg vs 117.0±10.6mmHg, p<0.01 and 85.0±9.7mmHg vs 75.0±5.3mmHg, p<0.01 respectively) but the heart rate was indepentent of amlodipine administration.

3) The adverse effects of amlodipine were as headache in 3, facial flushing in 3, palpitation, dizziness, urinary difficulty in 1 respectively and one of them discontinued amlodipine due to severe palpitation and facial flushing.