hyperkalemia
14 interactions related to hyperkalemia
losartan + potassium
Losartan blocks the angiotensin II receptor, lowering aldosterone and reducing renal potassium excretion in the same way ACE inhibitors do. Concurrent potassium supplementation can drive serum potassium into the hyperkalemic range, with cardiac arrhythmia risk in patients with kidney impairment, diabetes, or heart failure.
lisinopril + potassium
Lisinopril blocks the renin-angiotensin-aldosterone system, reducing aldosterone secretion and impairing the kidneys' ability to excrete potassium. Adding potassium supplements on top of this can push serum potassium into dangerous territory, especially in older adults or those with reduced kidney function.
lisinopril + salt substitutes
Potassium-based salt substitutes (potassium chloride replacing sodium chloride) can deliver hundreds of milligrams of potassium per teaspoon. Combined with lisinopril's impairment of renal potassium excretion, this combination has caused multiple documented cases of life-threatening hyperkalemia, including cardiac arrest.
spironolactone + potassium
Spironolactone is a mineralocorticoid receptor antagonist that blocks aldosterone-driven potassium excretion in the collecting duct, causing the kidneys to retain potassium. Adding a potassium supplement, salt substitute, or potassium-rich diet on top of spironolactone can produce fatal hyperkalemia, especially in patients with chronic kidney disease, heart failure, diabetes, or who are also on an ACE inhibitor or ARB.
radish + ace inhibitors
Radish contains moderate amounts of dietary nitrate and potassium. Nitrate becomes nitric oxide and modestly relaxes blood vessels, while potassium adds to the elevated potassium levels that ACE inhibitors already cause. In normal food portions the effect is small, but very large or supplement-level intake can matter.
salt substitute + spironolactone
Most salt substitutes are made primarily of potassium chloride and can deliver 500 mg or more of potassium per quarter teaspoon. Spironolactone is a potassium-sparing diuretic that markedly reduces renal potassium excretion. Combining the two can cause severe, sometimes fatal hyperkalemia.
oranges + ace inhibitors
Oranges and orange juice are high in potassium (about 240 mg per medium orange, 450-500 mg per cup of juice), and ACE inhibitors reduce aldosterone and renal potassium excretion. Heavy consumption of oranges or orange juice with ACE inhibitors can raise serum potassium, with greater risk in patients with reduced kidney function.
potatoes + ace inhibitors
Potatoes are very high in potassium (a medium baked potato with skin contains about 900 mg), and ACE inhibitors reduce aldosterone-mediated potassium excretion. Regular large servings of potatoes combined with ACE inhibitors can raise serum potassium, particularly in patients with chronic kidney disease, heart failure, or diabetes.
valsartan + potassium
Valsartan is an angiotensin II receptor blocker that suppresses aldosterone and slows renal potassium excretion. The FDA-approved Diovan label specifically warns that potassium supplements and potassium-containing salt substitutes may lead to clinically significant hyperkalemia, particularly in patients with renal impairment, diabetes, or heart failure.
salt substitute + lisinopril
Salt substitutes are typically potassium chloride and can deliver hundreds of milligrams of potassium per small serving. Lisinopril and other ACE inhibitors reduce aldosterone and decrease potassium excretion. Combining them can cause clinically significant hyperkalemia, particularly with chronic kidney disease, diabetes, or other potassium-raising drugs.
bananas + spironolactone
Bananas are a high-potassium food (around 422 mg per medium banana), and spironolactone is a potassium-sparing diuretic that reduces renal potassium excretion. Combining high dietary potassium with spironolactone can cause hyperkalemia, which may trigger dangerous cardiac arrhythmias.
coconut water + spironolactone
Coconut water is naturally high in potassium (roughly 600 mg per cup) and is often consumed in large volumes for hydration. Spironolactone is a potassium-sparing diuretic that reduces renal potassium excretion. Regular high-volume coconut water consumption with spironolactone can cause hyperkalemia, including cases reported in the medical literature.
bananas + lisinopril
Lisinopril is an ACE inhibitor that reduces aldosterone and increases serum potassium. Combined with high dietary potassium from bananas and other potassium-rich foods, this can cause hyperkalemia, particularly in patients with reduced kidney function or those also taking potassium-sparing diuretics.
avocado + ace inhibitors
Avocados are a high-potassium food (about 487 mg per half avocado), and ACE inhibitors reduce aldosterone-driven potassium excretion. Frequent large servings of avocado combined with ACE inhibitors can contribute to hyperkalemia, especially in patients with kidney impairment or other potassium-raising medications.