Hypertension Home > Diuril

Diuril is approved to control hypertension and edema related to certain medical conditions. As a diuretic, it works by increasing the amount of salt and water the kidneys remove from the blood. The medication comes in tablet and oral suspension form, and is usually taken once or twice a day. Possible side effects include weakness, dizziness, and nausea.

What Is Diuril?

Diuril® (chlorothiazide) is a prescription medicine used for high blood pressure and fluid retention. It is part of a class of drugs known as diuretics.

Who Makes It?

Diuril was originally made by Merck, although it is no longer being made. Generic Diuril is made by various manufacturers.

What Is Diuril Used For?

Specific uses of Diuril include the treatment of:
(Click Diuril Uses for more information, including possible off-label indications.)

How Does This Medication Work?

Diuril is a diuretic, which is commonly referred to as a "water pill." It works by increasing the amount of salt and water the kidneys remove from the blood. This extra salt and water is passed out through urine. By increasing the amount of water removed from the blood, Diuril causes a decrease in blood volume. Because of this effect, the drug can lower blood pressure and help with water retention.
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Last reviewed by: Kristi Monson, PharmD;
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