Prescription Drugs
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Hydrochlorothiazide (hye droe klor oh thye' a zide)
Other names: Accuretic , Benicar HCT , Diovan HCT , Hydra-Zide , HydroDIURIL, Lopressor HCT | More
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Why is this medication prescribed?

Hydrochlorothiazide, a 'water pill,' is used to treat high blood pressure and fluid retention caused by various conditions, including heart disease. It causes the kidneys to get rid of unneeded water and salt from the body into the urine.

This medicine is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.

How should this medication be used?

Hydrochlorothiazide comes as a tablet and liquid to take by mouth. It usually is taken once or twice a day. If you are to take it once a day, take it in the morning; if you are to take it twice a day, take it in the morning and in the late afternoon to avoid going to the bathroom during the night. Take this medication with a meal or snack. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take hydrochlorothiazide exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.

Hydrochlorothiazide controls high blood pressure but does not cure it. Continue to take hydrochlorothiazide even if you feel well. Do not stop taking hydrochlorothiazide without talking to your doctor.

Are there other uses for this medicine?

Hydrochlorothiazide may also be used to treat patients with diabetes insipidus and certain electrolyte disturbances and to prevent kidney stones in patients with high levels of calcium in their blood. Talk to your doctor about the possible risks of using this medicine for your condition.

  • Accuretic® (as a combination product containing Hydrochlorothiazide and Quinapril Hydrochloride)
  • Benicar® HCT (as a combination product containing Hydrochlorothiazide and Olmesartan Medoxomil)
  • Diovan® HCT (as a combination product containing Hydrochlorothiazide and Valsartan)
  • Hydra-Zide® (as a combination product containing Hydrochlorothiazide and Hydralazine Hydrochloride)
  • HydroDIURIL®
  • Lopressor HCT® (as a combination product containing Hydrochlorothiazide and Metoprolol)
  • Microzide®
  • Monopril® HCT (as a combination product containing Hydrochlorothiazide and Fosinopril Sodium)
  • Timolide® (as a combination product containing Hydrochlorothiazide and Timolol)
  • Uniretic® (as a combination product containing Hydrochlorothiazide and Moexipril Hydrochloride)
  • Ziac® (as a combination product containing Hydrochlorothiazide and Bisoprolol Fumarate)
Last Revised January 04, 2009
American Society of Health-System Pharmacists
This information being provided is copyrighted by the American Society of Health-System Pharmacists, Inc., ASHP, Bethesda, Maryland.
©2009. All Rights Reserved.