Key takeaways
Furosemide (Lasix) and ethacrynic acid (Edecrin) are both loop diuretics used to treat swelling (edema) and high blood pressure. Furosemide is available in both tablet and oral solution forms, while ethacrynic acid is available as a tablet and an injection. One key difference is that ethacrynic acid is sometimes used for people who have a sulfa allergy, as it does not contain the sulfonamide part that can cause allergic reactions. Furosemide is generally less expensive and available as a generic, whereas ethacrynic acid is more costly and both its brand and generic versions are expensive. Both medications can cause you to urinate more often, but ethacrynic acid is noted for potentially causing temporary hearing loss, which is less common with furosemide. Additionally, furosemide can make your skin more sensitive to the sun, a side effect not mentioned for ethacrynic acid. Both medications require careful monitoring for dehydration and electrolyte imbalances.
