Idiopathic oedema: a study of the effects of bromocriptine.

We have studied the effect of bromocriptine in seven patients with idiopathic oedema. Two patients were unable to tolerate the drug; the remaining five were maintained on doses of between 5 and 7.5 mg a day. Symptomatic improvement was noted in two patients and in both of these and one other there was a significant improvement in mean diurnal weight gain. The fall in free water and sodium clearance on standing was reduced by bromocriptine, but there was no significant change in the excessive fall in plasma volume.