The medication works by increasing the amount of salt and water the kidneys remove from the blood. Impaired Renal Function Anuria, acute or chronic renal insufficiency, and evidence of diabetic nephropathy are contraindications to the use of MIDAMOR. Consult your doctor or pharmacist if you have questions about your dosing schedule. We comply with the HONcode standard for trustworthy health information. Nursing Mothers Studies in rats have shown that amiloride is excreted in milk in concentrations higher than those found in blood, but it is not known whether MIDAMOR is excreted in human milk. This can damage the blood vessels of the brain, heart, and kidneys, resulting in stroke, heart failure, or kobe midamor uden rx kidney failure.