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(valsartan and hydrochlorothiazide USP)
- When pregnancy is detected, discontinue Diovan HCT as soon as possible.
- Drugs that act directly on the renin-angiotensin system can cause injury and death to the developing fetus.
Diovan HCT (valsartan and hydrochlorothiazide, USP) is a combination of valsartan, an orally active, specific angiotensin II receptor blocker (ARB) acting on the AT1 receptor subtype, and hydrochlorothiazide, a diuretic.
Valsartan, a nonpeptide molecule, is chemically described as N-(1-oxopentyl)-N-[[2'-(1H-tetrazol-5-yl)[1,1'-biphenyl]-4-yl]methyl]-L-Valine. Its empirical formula is C24H29N5O3, its molecular weight is 435.5, and its structural formula is
Valsartan is a white to practically white fine powder. It is soluble in ethanol and methanol and slightly soluble in water.
Hydrochlorothiazide USP is a white, or practically white, practically odorless, crystalline powder. It is slightly soluble in water; freely soluble in sodium hydroxide solution, in n-butylamine, and in dimethylformamide; sparingly soluble in methanol; and insoluble in ether, in chloroform, and in dilute mineral acids. Hydrochlorothiazide is chemically described as 6-chloro-3,4-dihydro-2H-1,2,4-benzothiadiazine-7-sulfonamide 1,1-dioxide.
Hydrochlorothiazide is a thiazide diuretic. Its empirical formula is C7H8ClN3O4S2, its molecular weight is 297.73, and its structural formula is
Diovan HCT tablets are formulated for oral administration to contain valsartan and hydrochlorothiazide, USP 80/12.5 mg, 160/12.5 mg, 160/25 mg, 320/12.5 mg and 320/25 mg. The inactive ingredients of the tablets are colloidal silicon dioxide, crospovidone, hydroxypropyl methylcellulose, iron oxides, magnesium stearate, microcrystalline cellulose, polyethylene glycol, talc, and titanium dioxide.
What are the possible side effects of hydrochlorothiazide and valsartan (Diovan HCT)?
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
In rare cases, hydrochlorothiazide and valsartan can cause a condition that results in the breakdown of skeletal muscle tissue, leading to kidney failure. Call your doctor right away if you have unexplained muscle pain, tenderness, or weakness especially if you also have fever, unusual tiredness, and dark colored urine.
Stop using this medication and call your doctor at once if you have a...
What are the precautions when taking valsartan and hydrochlorothiazide (Diovan HCT)?
Before taking this medication, tell your doctor or pharmacist if you are allergic to valsartan or hydrochlorothiazide; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: gout, kidney disease, liver disease, lupus, severe loss of body water and minerals (dehydration).
This drug may make you dizzy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely. Limit alcoholic beverages.
Severe sweating, diarrhea, or vomiting can increase the risk for lightheadedness or a serious...
Last reviewed on RxList: 10/16/2012
This monograph has been modified to include the generic and brand name in many instances.
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