Cardiovascular Medicine Book

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Potassium-Sparing Diuretic

Aka: Potassium-Sparing Diuretic, Aldosterone Antagonist, Amiloride, Midamor, Triamterene, Dyrenium
  1. Preparations
    1. Potassium-Sparing Diuretics only
      1. Amiloride (Midamor)
      2. Triamterene (Dyrenium)
    2. Potassium-Sparing Diuretic and Aldosterone Antagonists
      1. Spironolactone (Aldactone)
      2. Eplerenone (Inspra)
  2. Drug Interactions
    1. Potassium supplements (risk of Hyperkalemia)
    2. CYP3A4 Inhibitors (Eplerenone only)
      1. Significantly increases Eplerenone levels

Aldosterone Antagonists (C0002007)

Definition (MSH) Compounds which inhibit or antagonize the biosynthesis or actions of aldosterone.
Definition (CSP) agent that counteracts or opposes the action of aldosterone.
Concepts Pharmacologic Substance (T121)
MSH D000451
SnomedCT 346312000, 372603003
English Antagonists, Aldosterone, aldosterone inhibitor, ALDOSTERONE ANTAG, aldosterone antagonists, Aldosterone Antagonists, Aldosterone Antagonist, Aldosterone Antagonist [EPC], aldosterone inhibitors, aldosterone antagonist, antagonist aldosterone, Aldosterone antagonists, Aldosterone antagonists (product), Aldosterone antagonists (substance), Aldosterone antagonist (substance), Aldosterone antagonist
Spanish antagonista de la aldosterona (sustancia), antagonista de la aldosterona, antagonistas de la aldosterona (sustancia), antagonistas de la aldosterona, antagonista de aldosterona (producto), antagonista de aldosterona, antagonistas de aldosterona (producto), antagonistas de aldosterona (sustancia), antagonistas de aldosterona, Antagonistas de Aldosterona
French Antagonistes de l'aldostérone, Médicaments antialdostérones, Anti-aldostérones, Médicaments anti-aldostérones, Antialdostérones
Swedish Aldosteronblockerare
Czech aldosteron - antagonisté
Finnish Aldosteroniantagonistit
Russian AL'DOSTERONA ANTAGONISTY, АЛЬДОСТЕРОНА АНТАГОНИСТЫ
Croatian ALDOSTERONSKI ANTAGONISTI
Polish Substancje antagonistyczne aldosteronu, Antagoniści aldosteronu
German Aldosteronantagonisten
Italian Antagonisti dell' aldosterone
Portuguese Antagonistas da Aldosterona
Sources
Derived from the NIH UMLS (Unified Medical Language System)


Amiloride (C0002502)

Definition (NCI) A synthetic pyrazine derivative with antikaliuretic and diuretic properties. Amiloride inhibits sodium channels located in the distal tubules and collecting ducts of the kidney, thereby preventing the absorption of sodium and increasing its excretion along with water, to produce naturesis. In response to the hypernatremic conditions in the kidney, the plasma membrane becomes hyperpolarized and electrochemical forces are reduced, which then prevents the excretion of potassium and hydrogen into the lumen.
Definition (CSP) pyrazine compound inhibiting sodium reabsorbtion through sodium channels in renal epithelial cells; used in conjunction with diuretics to spare potassium loss.
Definition (MSH) A pyrazine compound inhibiting SODIUM reabsorption through SODIUM CHANNELS in renal EPITHELIAL CELLS. This inhibition creates a negative potential in the luminal membranes of principal cells, located in the distal convoluted tubule and collecting duct. Negative potential reduces secretion of potassium and hydrogen ions. Amiloride is used in conjunction with DIURETICS to spare POTASSIUM loss. (From Gilman et al., Goodman and Gilman's The Pharmacological Basis of Therapeutics, 9th ed, p705)
Concepts Organic Chemical (T109) , Pharmacologic Substance (T121)
MSH D000584
SnomedCT 387503008, 87395005
English Amiloride, amiloride, Pyrazinecarboxamide, 3,5-diamino-N-(aminoiminomethyl)-6-chloro-, Amiloride [Chemical/Ingredient], aMILoride, Amipramizide, Amiloride (product), Amiloride (substance), AMILORIDE
Swedish Amilorid
Czech amilorid
Finnish Amiloridi
Russian AMILORID, АМИЛОРИД
Croatian AMILORID
Polish Amiloryd
Japanese アミロライド, アミパミジン, アミロラジド, アミロリド
Spanish amilorida (producto), amilorida (sustancia), amilorida, Amilorida
French Amiloride
German Amilorid
Italian Amiloride
Portuguese Amilorida
Sources
Derived from the NIH UMLS (Unified Medical Language System)


Triamterene (C0040869)

Definition (MSH) A pteridine that is used as a mild diuretic.
Definition (NCI) A pteridine derivative with potassium-sparing diuretic property. Triamterene blocks the sodium-potassium exchange pump (Na-K-ATPase) in the luminal membrane of principal cells in the late distal tubule, cortical collecting tubule and collecting duct in the kidney. This reversible inhibition of the electrogenic sodium transport decreases the lumen-negative transepithelial potential difference and thus reduces the driving force for K+ movement into the tubular lumen resulting in the inhibition of sodium reabsorption in exchange for K+ and H+.
Concepts Organic Chemical (T109) , Pharmacologic Substance (T121)
MSH D014223
SnomedCT 12512008, 387053007
English Triamterene, 2,4,7-Pteridinetriamine, 6-phenyl-, triamterene, triamterene (medication), TRIAMTERENE, Triamterene [Chemical/Ingredient], Triamterene (product), Triamterene (substance)
Swedish Triamteren
Czech triamteren
Finnish Triamtereeni
Russian TRIAMTEREN, PTEROFEN, ПТЕРОФЕН, ТРИАМТЕРЕН
Japanese トリアムテレン
Polish Triamteren
Spanish triamtereno (producto), triamtereno (sustancia), triamtereno, Triantereno
French Triamtérène
German Triamteren
Italian Triamterene
Portuguese Triantereno
Sources
Derived from the NIH UMLS (Unified Medical Language System)


Midamor (C0026054)

Concepts Organic Chemical (T109) , Pharmacologic Substance (T121)
MSH D000584
English midamor, Cahill May Roberts Brand of Amiloride Hydrochloride, Merck Brand of Amiloride Hydrochloride, Merck Sharp & Dohme Brand of Amiloride Hydrochloride, Modamide, Midamor
Sources
Derived from the NIH UMLS (Unified Medical Language System)


Dyrenium (C0700653)

Concepts Organic Chemical (T109) , Pharmacologic Substance (T121)
MSH D014223
English Dyrenium, Wellspring Brand of Triamterene
Sources
Derived from the NIH UMLS (Unified Medical Language System)


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