food supplements Potassium-sparing diuretics block the exchange of sodium for potassium that naturally occurs in the body, causing the excretion of sodium with relatively little loss of potassium. Potassium-sparing diuretics, however, have not been found to cause problems in nursing babies. , Joint pain A condition in which the increased production of the hormone aldosterone causes increased blood pressure, excessive potassium loss and muscle weakness. , Increased thirst For what conditions may diuretics be harmful? , symptom of fluid retention health products