Diuretic

A diuretic is a substance that promotes the production of urine. This can be helpful in managing conditions that cause fluid buildup in the body, such as heart failure, liver cirrhosis, and some kidney diseases. Diuretics are often referred to as 'water pills'.

Furosemid vials

Types of Diuretics

There are three main types of diuretics: loop diuretics, thiazide diuretics, and potassium-sparing diuretics. Each type works in a different part of the kidney and has different uses and side effects.

Loop Diuretics

Loop diuretics, such as furosemide and bumetanide, act on the ascending limb of the loop of Henle in the kidney. They inhibit the reabsorption of sodium and chloride, leading to increased urine production.

Thiazide Diuretics

Thiazide diuretics, like hydrochlorothiazide and chlorthalidone, work in the distal convoluted tubule. They inhibit sodium and chloride reabsorption, and they are often used for treating high blood pressure.

Potassium-Sparing Diuretics

Potassium-sparing diuretics, including spironolactone, eplerenone, and amiloride, act on the collecting ducts and late distal tubule. They inhibit the exchange of sodium for potassium, leading to increased sodium excretion but decreased potassium excretion.

Clinical Use

Diuretics are commonly used to treat several conditions such as:

• Hypertension (high blood pressure)
• Edema (fluid retention) from various causes
• Heart failure
• Certain kidney disorders
• Liver disease, such as cirrhosis

Side Effects

Side effects of diuretics can include dehydration, electrolyte imbalance (including low potassium, low sodium, and high calcium levels), gout, and kidney damage if used inappropriately.

Summary

Diuretic is a drug that increases the amount of water in the urine, removing excess water from the body; used in treating high blood pressure and fluid retention.

See Also

• Hypertension
• Kidney
• Heart failure

Diuretic Resources
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