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Etacrynic acid
Etacrynic acid (INN) or ethacrynic acid (USAN), trade name Edecrin, is a loop diuretic used to treat high blood pressure and the swelling caused by diseases like congestive heart failure, liver failure, and kidney failure. A disadvantage with ethacrynic acid, compared to the other loop diuretic drugs such as furosemide, is that it has a significantly steep dose-response curve. This means the drug's dosing is very important as small variance in dose can cause a significant difference in the biological response.
Unlike the other loop diuretics, etacrynic acid is not a sulfonamide and may thus be used in individuals with sulfa allergies in whom the sulfonamide loop diuretics would be contraindicated.
Ethacrynic acid is a phenoxyacetic acid derivative, and contains an α,β-unsaturated ketone group.
Ethacrynic acid is a diuretic that is used to treat edema when a stronger agent is required. It is available as a pill or injected form. The pill is used to treat edema associated with congestive heart failure, cirrhosis and renal disease, accumulation of liquid in the belly associated with cancer or edema, and management of hospitalized children with congenital heart disease or nephrotic syndrome. The injected form is used to rapidly remove water from the body when needed – for example in acute pulmonary edema – or when a person cannot take the medicine in pill form.
As a diuretic, ethacrynic acid can cause frequent urination, but this usually resolves after taking the drug for a few weeks.
Ethacrynic acid can also cause low potassium levels, which may manifest as muscle cramps or weakness. It has also been known to cause reversible or permanent hearing loss (ototoxicity) and liver damage when administered in extremely high dosages. On oral administration, it produces diarrhea; intestinal bleeding may occur at higher doses.
Ethacrynic acid acts by inhibiting NKCC2 in the thick ascending loop of Henle and the macula densa. Loss of potassium ions is less marked but chances of hypochloremic alkalosis are greater. The dose response curve of ethacrynic acid is steeper than that of furosemide and, in general, it is less manageable; dose range is 50–150 mg.
Ethacrynic acid and its glutathione-adduct are potent inhibitors of glutathione S-transferase family members, which are enzymes involved in xenobiotic metabolism. This family of enzymes has been shown to have a high rate of genetic variability.
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Etacrynic acid
Etacrynic acid (INN) or ethacrynic acid (USAN), trade name Edecrin, is a loop diuretic used to treat high blood pressure and the swelling caused by diseases like congestive heart failure, liver failure, and kidney failure. A disadvantage with ethacrynic acid, compared to the other loop diuretic drugs such as furosemide, is that it has a significantly steep dose-response curve. This means the drug's dosing is very important as small variance in dose can cause a significant difference in the biological response.
Unlike the other loop diuretics, etacrynic acid is not a sulfonamide and may thus be used in individuals with sulfa allergies in whom the sulfonamide loop diuretics would be contraindicated.
Ethacrynic acid is a phenoxyacetic acid derivative, and contains an α,β-unsaturated ketone group.
Ethacrynic acid is a diuretic that is used to treat edema when a stronger agent is required. It is available as a pill or injected form. The pill is used to treat edema associated with congestive heart failure, cirrhosis and renal disease, accumulation of liquid in the belly associated with cancer or edema, and management of hospitalized children with congenital heart disease or nephrotic syndrome. The injected form is used to rapidly remove water from the body when needed – for example in acute pulmonary edema – or when a person cannot take the medicine in pill form.
As a diuretic, ethacrynic acid can cause frequent urination, but this usually resolves after taking the drug for a few weeks.
Ethacrynic acid can also cause low potassium levels, which may manifest as muscle cramps or weakness. It has also been known to cause reversible or permanent hearing loss (ototoxicity) and liver damage when administered in extremely high dosages. On oral administration, it produces diarrhea; intestinal bleeding may occur at higher doses.
Ethacrynic acid acts by inhibiting NKCC2 in the thick ascending loop of Henle and the macula densa. Loss of potassium ions is less marked but chances of hypochloremic alkalosis are greater. The dose response curve of ethacrynic acid is steeper than that of furosemide and, in general, it is less manageable; dose range is 50–150 mg.
Ethacrynic acid and its glutathione-adduct are potent inhibitors of glutathione S-transferase family members, which are enzymes involved in xenobiotic metabolism. This family of enzymes has been shown to have a high rate of genetic variability.