the chronic effect of the calcium antagonist nitrendipine , a 1,4-dihydropyridine derivative , on blood pressure ( bp ) , plasma aldosterone concentration ( pac ) , plasma renin activity ( pra ) , and serum potassium was investigated in six patients with primary aldosteronism , either due to an ( unilateral ) aldosterone-producing adenoma ( apa ) ( n = 3 ;
C0028127
nitrendipine
C0012315
dihydropyridine