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Lemichez Emmanuel*
Department of Nephrology, University of Pennsylvania, Philadelphia, USA
*Correspondence: Lemichez Emmanuel, Department of Nephrology, University of Pennsylvania, Philadelphia, USA, Email:

Received: 04-Jan-2022, Manuscript No. Jbclinphar-22-45481; Editor assigned: 07-Jan-2022, Pre QC No. Jbclinphar-22-45481(PQ); Reviewed: 21-Jan-2022 QC No. Jbclinphar-22-45481; Revised: 25-Jan-2022, Manuscript No. Jbclinphar-22-45481(R); Published: 01-Feb-2022, DOI: 10.37532/0976-0113.13(1).122

Citation: Emmanuel L. A Brief Overview on Synthesis and Biological Evaluation of Ethacrynic Acid. J Basic Clin Pharma.2022;13(1):122.

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About the Study

Ethacrynic acid is a loop diuretic that is used to treat high blood pressure and oedema caused by illnesses such as congestive coronary heart failure, liver failure, and kidney failure. Ethacrynic acid is a “water pill” (diuretic) that works on the kidneys to increase the amount of urine produced. This treatment is intended to reduce swelling (oedema) caused by conditions such as cancer, congestive heart failure, liver illness, and renal disease. This action can help your kidneys work better and minimise symptoms like difficulty breathing and swelling in ankles, feet, hands, or stomach. This medicine is no longer to be used on new borns.

Previous studies of Ethacrynic Acid in comparison to other loop diuretic capsules such as Furosemide is that it has a significantly steep dose-reaction curve, which means that the drug dosing is extremely important because a small difference in dose can cause a significant difference within the organic reaction. Unlike the other loop diuretics, ethacrynic acid is not necessarily a sulphonamide and so its usage is contraindicated in those who are allergic to sulpha.

Ethacrynic acid can also cause low potassium levels, which might manifest as muscular cramps or weakness. When used in extremely high doses, it has also been linked to reversible or permanent hearing loss (ototoxicity). It causes diarrhoea when taken orally; at higher dosages, it may also cause intestinal bleeding.

Ethacrynic acid works by blocking NKCC2 within the Henle’s thick ascending loop and the macula densa. The loss of potassium ions is much less significant, yet the possibility of hypochloraemia alkalosis exists. The dosage response curve of ethacrynic acid is steeper than that of furosemide, and it is significantly less controllable in general; the dose range is 50-150 mg. Ethacrynic acid and its glutathione-adduct are powerful inhibitors of glutathione S-transferase family members, which are enzymes involved in xenobiotic metabolism.

A substance that inhibits sodium, potassium, and chloride symport mostly in the ascending limb of Henle, but also in the proximal and distal tubules. This pharmacological movement causes ion excretion, increased urine output, and a decrease in extracellular fluid. This substance is classified as a loop or excessive ceiling diuretic.


Ethacrynic acid is a mono sulfonyl loop diuretic, often known as an excessive ceiling diuretic. Ethacrynic acid operates on the ascending limb of the Henle loop, as well as the proximal and distal tubules. Urinary output is frequently dose-dependent and related to the amount of fluid accumulated. Because ethacrynic acid blocks reabsorption of a significantly greater proportion of filtered sodium than most other diuretics, water and electrolyte excretion can be increased several times beyond that found with thiazide diuretics.

As a result, ethacrynic acid is effective in many patients with severe renal failure. Ethacrynic Acid has no effect on glomerular filtration or renal blood flow, besides from the reductions in plasma volume associated with rapid diuresis. The onset of movement is rapid, usually within a half-hour following an oral dosage of ethacrynic acid or within five minutes of an intravenous injection of ethacrynic acid. The dosage is entirely determined by your medical condition and response to treatment.


It is unusual to have a significant reaction to this medication. However, taking medical help is necessary after noticing any of the following signs and symptoms of severe allergic reactions like rash, itching or swelling especially of the face, tongue or throat, significant dizziness, and difficulty in breathing. This product may potentially include inactive chemicals, which may cause hypersensitivity responses or other issues. Drug interactions may potentially affect the way the drugs function by increasing the risk of serious side effects.