Ethacrynic acid (Edecrin®) is a loop diuretic medication used to treat high blood pressure and the swelling caused by diseases like congestive heart failure, liver failure, and kidney failure.

Administration

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25 mg and 50 mg tablets are available for oral use. The sodium salt (ethacrynate sodium) can also be given intravenously.

Side effects

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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.

Loop diuretics | Kwas etakrynowy