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home > drugs a-z list > diuril (chlorothiazide) drug center > diuril (chlorothiazide) drug - overdosage and contraindications
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Diuril
What are diuretics and how do they work?
The amount of fluid (water) retained by the body is controlled primarily by the kidneys. This occurs due to the kidney's ability to control the retention and elimination of sodium and chloride, because the amounts of sodium, chloride, and water in the body are carefully balanced. Thus, if sodium and chloride are eliminated from the body, water also is eliminated. Conversely, if sodium and chloride are retained by the body, so is water.
The elimination of sodium, chloride, and water from the body is somewhat complex. In the kidneys, sodium, chloride, and other small molecules are filtered out of the blood and into the tubules of the kidney where urine is formed. Most of the sodium, chloride, and water are reabsorbed into the blood before the filtered fluid leaves the kidney in the form of urine. To make matters even more complex, there are different mechanisms that are active in different parts of the tu...
Diuril
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OVERDOSE
The most common signs and symptoms observed are those caused by electrolyte depletion (hypokalemia, hypochloremia, hyponatremia) and dehydration resulting from excessive diuresis. If digitalis has also been administered, hypokalemia may accentuate cardiac arrhythmias.
In the event of overdosage, symptomatic and supportive measures should be employed. Emesis should be induced or gastric lavage performed. Correct dehydration, electrolyte imbalance, hepatic coma and hypotension by established procedures. If required, give oxygen or artificial respiration for respiratory impairment.
The degree to which chlorothiazide sodium is removed by hemodialysis has not been established.
The oral LD50 of chlorothiazide is 8.5 g/kg, greater than 10 g/kg, and greater than 1 g/kg, in the mouse, rat and dog respectively.
CONTRAINDICATIONS
Anuria.
Hypersensitivity to this product or to other sulfonamide-derived drugs.
Last reviewed on RxList: 6/24/2009
This monograph has been modified to include the generic and brand name in many instances.
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