Abstract:Moduretic has been reported to inhibit the suppression of plasma norepinephrine (NE) levels by the alpha 2 adrenoceptor agonist, clonidine. To determine whether plasma volume reduction by hydrochlorothiazide (HCTZ) or antagonism of Na+/H+ exchange by amiloride (the constituents of Moduretic) is responsible, the authors performed a modified clonidine suppression test (CST) in nine normal volunteers (aged 25 +/- 2 years), pretreated for 1 week with HCTZ 50 mg daily, amiloride 10 mg daily, or placebo, in a random… Show more
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