Bromocriptine-induced modulation of plasma aldosterone response to acute stimulations.

The influence of the dopaminergic agent 2-bromoergocryptine on plasma aldosterone response to acute stimulations was assessed in 14 normal male volunteers. Without modifying basal plasma aldosterone levels or urinary aldosterone excretion, bromocriptine retarded and diminished significantly the plasma aldosterone response to angiotensin II or ACTH, but did not alter the response to upright posture. These results point to a bromocriptine-induced modulation of the plasma aldosterone response to direct stimulations at the adrenal level. The present work brings further evidence for an effect of the dopaminergic system on the physiological control of aldosterone.