Loop Diuretics

As a starter pretty much all diuresis is conducted by convincing the kidney to lose more Na. Lose the Na and the water will follow - Andy Neill

Loop Diuretics
Loop Diuretics

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 Lasix: The Basics of Furosemide

Furosemide, sold under the brand name Lasix, is a loop diuretic that blocks the sodium-potassium-chloride transporter in the ascending limb of the loop of Henle. This blockade results in decreased reabsorption of sodium, chloride, and water [1]. Diuresis starts within 30 minutes of intravenous administration and peaks in 1 to 2 hours.


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The usual initial dose of LASIX is 20 mg to 80mg given as a single dose. Ordinarily a prompt diuresis ensues. If needed, the same dose can be administered 6 to 8 hours later or the dose may be increased. The dose may be raised by 20 mg or 40mg and given not sooner than 6 to 8 hours after the previous dose until the desired diuretic effect has been obtained.

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