Teveten HCT (Eprosartan Mesylate Hydrochlorothiazide Tablets) Drug Information: Overdosage and Contraindications

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May 27, 2012

Teveten HCT

Angiotensin Receptor Blockers (ARBs) »

What are angiotensin receptor blockers (ARBs) and how do they work?

The class of drugs called angiotensin receptor blockers (ARBs), as the class name suggests, are drugs that block the action of angiotensin. Specifically, ARBs prevent angiotensin II from binding to the angiotensin II receptor on blood vessels and other tissues.

Angiotensin II is a very potent chemical that causes the muscles surrounding blood vessels to contract, thereby narrowing the blood vessels. Narrowing of blood vessels increases the pressure within the blood vessels and may lead to high blood pressure (hypertension). Reducing the binding and activity of angiotensin II leads to widening (dilation) of blood vessels and reduces blood pressure. By lowering blood pressure against which the heart must pump, the amount of work that the heart must do is reduced. ACE inhibitors also reduce blood pressure in the kidneys, slowing the progression of kidney disease due to high b...

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Teveten HCT

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OVERDOSE

Eprosartan Mesylate

Limited data are available regarding overdosage. Appropriate symptomatic and supportive therapy should be given if overdosage should occur. There was no mortality in rats and mice receiving oral doses of up to 3000 mg eprosartan/kg and in dogs receiving oral doses of up to 1000 mg eprosartan/kg.

Hydrochlorothiazide

The most common signs and symptoms observed are those caused by electrolyte depletion (hypokalemia, hypochloremia, and hyponatremia) and dehydration resulting from excessive diuresis. If digitalis has also been administered, hypokalemia may accentuate cardiac arrhythmias. The degree to which hydrochlorothiazide is removed by hemodialysis has not been established. The oral LD₅₀ of hydrochlorothiazide is greater than 10 g/kg in both mice and rats.

CONTRAINDICATIONS

TEVETEN® HCT is contraindicated in patients who are hypersensitive to this product or any of its components. Because of the hydrochlorothiazide component, this product is contraindicated in patients with anuria or hypersensitivity to other sulfonamide-derived drugs.

Last reviewed on RxList: 1/30/2012
This monograph has been modified to include the generic and brand name in many instances.