" Citing a lack of cardiovascular benefit, the FDA is taking the unusual step of withdrawing approvals it had previously given for use of niacin and fenofibric acid with statins to treat high cholesterol.
The decision affects niac"...
(clonidine hydrochloride and chlorthalidone) Tablet 0.1 mg/15 mg, 0.2 mg/15 mg
and 0.3 mg/15 mg
CLORPRES (clonidine hydrochloride and chlorthalidone) ® 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.
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.
What are the possible side effects of clonidine and chlorthalidone (Clorpres)?
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.
Call your doctor at once if you have a serious side effect such as:
- dry mouth, increased thirst, drowsiness, restless feeling, nausea, vomiting, increased urination, muscle pain or weakness, fast heart rate, feeling light-headed, fainting, or seizure (convulsions);
- easy bruising or bleeding, unusual weakness;
- red or purple spots on your skin;
Last reviewed on RxList: 5/28/2009
This monograph has been modified to include the generic and brand name in many instances.
Additional Clorpres Information
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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