Clorpres
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Questions & Answers
Side Effects & Adverse Reactions
Chlorthalidone should be used with caution in severe renal disease. In patients with renal disease, chlorthalidone or related drugs may precipitate azotemia. Cumulative effects of the drug may develop in patients with impaired renal function. Chlorthalidone should be used with caution in patients with impaired hepatic function or progressive liver disease, because minor alterations of fluid and electrolyte balance may precipitate hepatic coma.
Sensitivity reactions may occur in patients with a history of allergy or bronchial asthma.
The possibility of exacerbation or activation of systemic lupus erythematosus has been reported with thiazide diuretics which are structurally related to chlorthalidone. However, systemic lupus erythematosus has not been reported following chlorthalidone administration.
Legal Issues
There is currently no legal information available for this drug.
FDA Safety Alerts
There are currently no FDA safety alerts available for this drug.
Manufacturer Warnings
There is currently no manufacturer warning information available for this drug.
FDA Labeling Changes
There are currently no FDA labeling changes available for this drug.
Uses
CLORPRES® (clonidine hydrochloride USP/chlorthalidone USP) is indicated in the treatment of hypertension. This fixed combination drug is not indicated for initial therapy of hypertension. Hypertension requires therapy titrated to the individual patient. If the fixed combination represents the dosage so determined, its use may be more convenient in patient management. The treatment of hypertension is not static, but must be reevaluated as conditions in each patient warrant.
History
There is currently no drug history available for this drug.
Other Information
CLORPRES® is a combination of clonidine hydrochloride (a centrally acting antihypertensive agent) and chlorthalidone (a diuretic). CLORPRES® is available as tablets for oral administration in three dosage strengths: 0.1 mg/15 mg, 0.2 mg/15 mg and 0.3 mg/15 mg of clonidine hydrochloride/chlorthalidone, respectively.
The inactive ingredients are ammonium chloride, colloidal silicon dioxide, croscarmellose sodium (Type A), magnesium stearate, microcrystalline cellulose, sodium lauryl sulfate, D&C yellow #10.
Clonidine hydrochloride is an imidazoline derivative and exists as a mesomeric compound. The chemical name is 2-[(2,6-dichlorophenyl)imino]imidazoline monohydrochloride. The following are the structural formula, molecular formula and molecular weight:
Clonidine hydrochloride is an odorless, bitter, white crystalline substance soluble in water and alcohol.
Chlorthalidone is a monosulfamyl diuretic that differs chemically from thiazide diuretics in that a double ring system is incorporated in its structure. It is 2-chloro-5-(1-hydroxy-3-oxo-1-isoindolinyl) benzenesulfonamide with the following structural formula, molecular formula and molecular weight:
Chlorthalidone is practically insoluble in water, in ether and in chloroform; soluble in methanol; slightly soluble in alcohol.
Sources
Clorpres Manufacturers
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Bertek Pharmaceuticals Inc.
![Clorpres (Clonidine Hydrochloride And Chlorthalidone) Tablet [Bertek Pharmaceuticals Inc.]](/wp-content/themes/bootstrap/assets/img/loading2.gif)
Clorpres | Bertek Pharmaceuticals Inc.
The dosage must be determined by individual titration. (See INDICATIONS AND USAGE.)
Chlorthalidone is usually initiated at a dose of 25 mg once daily and may be increased to 50 mg if the response is insufficient after a suitable trial.
Clonidine hydrochloride is usually initiated at a dose of 0.1 mg twice daily. Elderly patients may benefit from a lower initial dose. Further increments of 0.1 mg/day may be made if necessary until the desired response is achieved. The therapeutic doses most commonly employed have ranged from 0.2 to 0.6 mg per day in divided doses.
One CLORPRES® (clonidine hydrochloride/chlorthalidone) Tablet administered once or twice daily can be used to administer a minimum of 0.1 mg clonidine hydrochloride and 15 mg chlorthalidone to a maximum of 0.6 mg clonidine hydrochloride and 30 mg chlorthalidone.
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Mylan Pharmaceuticals Inc.
Clorpres | Meijer Distribution Inc
adults and children 6 years and over
1 tablet daily; not more than 1 tablet in 24 hours
children under 6 years of age
ask a doctor
consumers with liver or kidney disease
ask a doctor
![Clorpres (Clonidine Hydrochloride And Chlorthalidone) Tablet [Mylan Pharmaceuticals Inc.]](http://dailymed.nlm.nih.gov/dailymed/image.cfm?setid=9261a02b-db43-462f-9f06-fb5624070e20&name=64d1bb09-98d1-4e9c-b678-efd70f702be0-01.jpg)
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