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Atacand HCT

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Atacand HCT

ATACAND HCT®
(candesartan cilexetil – hydrochlorothiazide) Tablets

WARNING

FETAL TOXICITY

  • When pregnancy is detected, discontinue ATACAND HCT as soon as possible.
  • Drugs that act directly on the renin-angiotensin system can cause injury and death to the developing fetus. See WARNINGS: Fetal Toxicity

DRUG DESCRIPTION

ATACAND HCT (candesartan cilexetil-hydrochlorothiazide) combines an angiotensin II receptor (type AT1) antagonist and a diuretic, hydrochlorothiazide.

Candesartan cilexetil, a nonpeptide, is chemically described as (±)-1-Hydroxyethyl 2-ethoxy-1-[p-(o-1H-tetrazol-5ylphenyl)benzyl]-7-benzimidazolecarboxylate, cyclohexyl carbonate (ester).

Its empirical formula is C33H34N6O6, and its structural formula is

Candesartan cilexetil Structural Formula Illustration

Candesartan cilexetil is a white to off-white powder with a molecular weight of 610.67. It is practically insoluble in water and sparingly soluble in methanol. Candesartan cilexetil is a racemic mixture containing one chiral center at the cyclohexyloxycarbonyloxy ethyl ester group. Following oral administration, candesartan cilexetil undergoes hydrolysis at the ester link to form the active drug, candesartan, which is achiral.

Hydrochlorothiazide is 6-chloro-3,4-dihydro-2H-1,2,4benzothiadiazine-7-sulfonamide 1,1-dioxide. Its empirical formula is C7H8ClN3O4S2 and its structural formula is

Hydrochlorothiazide Structural Formula Illustration

Hydrochlorothiazide is a white, or practically white, crystalline powder with a molecular weight of 297.72, which is slightly soluble in water, but freely soluble in sodium hydroxide solution.

ATACAND HCT is available for oral administration in three tablet strengths of candesartan cilexetil and hydrochlorothiazide.

ATACAND HCT 16-12.5 contains 16 mg of candesartan cilexetil and 12.5 mg of hydrochlorothiazide. ATACAND HCT 32-12.5 contains 32 mg of candesartan cilexetil and 12.5 mg of hydrochlorothiazide. ATACAND HCT 32-25 contains 32 mg of candesartan cilexetil and 25 mg of hydrochlorothiazide. The inactive ingredients of the tablets are carboxymethylcellulose calcium, hydroxypropyl cellulose, lactose monohydrate, magnesium stearate, corn starch, polyethylene glycol 8000, and ferric oxide (yellow). Ferric oxide (reddish brown) is also added to the 16-12.5 mg and 3225 mg tablets as colorant.

What are the possible side effects of hydrochlorothiazide and candesartan (Atacand 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 candesartan 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.

Call your doctor at once if you have any other serious side effect,...

Read All Potential Side Effects and See Pictures of Atacand HCT »

What are the precautions when taking candesartan cilexetil-hydrochlorothiazide (Atacand HCT)?

Before taking this medication, tell your doctor or pharmacist if you are allergic to candesartan 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: kidney disease (such as renal artery stenosis), liver disease, loss of too much body water and/or minerals (volume depletion, dehydration), untreated mineral imbalance (such as low or high potassium), gout, lupus.

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...

Read All Potential Precautions of Atacand HCT »

Last reviewed on RxList: 4/9/2012
This monograph has been modified to include the generic and brand name in many instances.

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Atacand HCT - User Reviews

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