Oral potassium chloride and amiloride in hydrochlorothiazide-induced potassium loss. 1984

R F Maronde, and J Barr, and N D Vlachakis, and C A Spencer, and L Chan

To compare the effect of amiloride with that of oral potassium chloride (KCl) in hypokalemia, metabolic balance studies were carried out in hospitalized subjects with mild hypertension without edema who developed negative potassium balance after 4 days on hydrochlorothiazide (HCTZ). Subjects' diets contained measured amounts of sodium and potassium. While HCTZ treatment continued, oral preparations of either KCl solution or amiloride was added for 5 additional days. Potassium balance in the KCl-treated group further decreased by -44.9 +/- 32.3 mEq K+, while subjects on amiloride went into positive balance that averaged +51.7 +/- 24.1 mEq K+. Hypokalemia after HCTZ did not respond to KCl, while K+ levels rose from 3.32 +/- 0.22 to 3.67 +/- 0.26 mEq/l after amiloride.

UI MeSH Term Description Entries
D006973 Hypertension Persistently high systemic arterial BLOOD PRESSURE. Based on multiple readings (BLOOD PRESSURE DETERMINATION), hypertension is currently defined as when SYSTOLIC PRESSURE is consistently greater than 140 mm Hg or when DIASTOLIC PRESSURE is consistently 90 mm Hg or more. Blood Pressure, High,Blood Pressures, High,High Blood Pressure,High Blood Pressures
D007008 Hypokalemia Abnormally low potassium concentration in the blood. It may result from potassium loss by renal secretion or by the gastrointestinal route, as by vomiting or diarrhea. It may be manifested clinically by neuromuscular disorders ranging from weakness to paralysis, by electrocardiographic abnormalities (depression of the T wave and elevation of the U wave), by renal disease, and by gastrointestinal disorders. (Dorland, 27th ed) Hypopotassemia,Hypokalemias,Hypopotassemias
D007700 Kinetics The rate dynamics in chemical or physical systems.
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D011188 Potassium An element in the alkali group of metals with an atomic symbol K, atomic number 19, and atomic weight 39.10. It is the chief cation in the intracellular fluid of muscle and other cells. Potassium ion is a strong electrolyte that plays a significant role in the regulation of fluid volume and maintenance of the WATER-ELECTROLYTE BALANCE.
D011719 Pyrazines A heterocyclic aromatic organic compound with the chemical formula C4H4N2. Pyrazine
D003404 Creatinine Creatinine Sulfate Salt,Krebiozen,Salt, Creatinine Sulfate,Sulfate Salt, Creatinine
D004341 Drug Evaluation Any process by which toxicity, metabolism, absorption, elimination, preferred route of administration, safe dosage range, etc., for a drug or group of drugs is determined through clinical assessment in humans or veterinary animals. Evaluation Studies, Drug,Drug Evaluation Studies,Drug Evaluation Study,Drug Evaluations,Evaluation Study, Drug,Evaluation, Drug,Evaluations, Drug,Studies, Drug Evaluation,Study, Drug Evaluation
D005260 Female Females

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