Global Statistics

All countries
262,849,697
Confirmed
Updated on November 30, 2021 8:46 pm
All countries
235,596,701
Recovered
Updated on November 30, 2021 8:46 pm
All countries
5,230,536
Deaths
Updated on November 30, 2021 8:46 pm

Global Statistics

All countries
262,849,697
Confirmed
Updated on November 30, 2021 8:46 pm
All countries
235,596,701
Recovered
Updated on November 30, 2021 8:46 pm
All countries
5,230,536
Deaths
Updated on November 30, 2021 8:46 pm

Hydrochlorothiazide (Microzide Diuretic) Side Effects & Dosage

Why is hydrochlorothiazide prescribed to patients?

  • Hydrochlorothiazide is used to treat excessive fluid accumulation and swelling (edema) of the body caused by
    heart failure,
    cirrhosis, chronic
    kidney failure, corticosteroid medications, and nephrotic syndrome.
  • It also is used alone or in conjunction with other
    blood pressure lowering medications to
    treat
    high blood pressure.
  • Although hydrochlorothiazide is approved for treating edema in cirrhosis of the
    liver, it is rarely used because of the availability of other diuretics that are more effective.
  • Hydrochlorothiazide can be used to treat calcium-containing
    kidney stones because it decreases the amount of calcium excreted by the kidneys in the urine and thus decreases the amount of calcium in urine to form stones.

Do I need a prescription for hydrochlorothiazide?

Yes

What brand names are available for hydrochlorothiazide?

Hydrodiuril, Ezide, Hydro-Par, and Microzid are brand names that are no longer available in the US.

Is hydrochlorothiazide available as a generic drug?

Yes

What are the side effects of hydrochlorothiazide?

Side effects of hydrochlorothiazide include

More serious side effects include

Patients allergic to sulfa may also be allergic to hydrochlorothiazide because of the similarity in the chemical structure of the medications.

Hydrochlorothiazide can aggravate kidney dysfunction and is used with caution in patients with kidney disease. Hydrochlorothiazide can lower blood potassium, sodium, and magnesium levels. Low potassium and magnesium levels can lead to abnormalities in heart rhythm, especially in patients already taking digoxin (Lanoxin). During hydrochlorothiazide treatment, supplementation with potassium is common to prevent low potassium levels.

Blood uric acid levels can increase during hydrochlorothiazide treatment, and this elevation may cause an episode of acute gout in some individuals. Thiazide diuretics may increase blood sugar (glucose) levels and precipitate diabetes.

What is the dosage for hydrochlorothiazide?

  • Hydrochlorothiazide may be taken with or without food.
  • The usual adult dose for hypertension is 12.5 to 50 mg once daily.
  • The usual adult dose for treating edema is 25-100 mg once daily or in divided doses.




QUESTION

Salt and sodium are the same.
See Answer

Which drugs or supplements interact with hydrochlorothiazide?

  • Hydrochlorothiazide reduces the elimination of lithium (Lithobid, Eskalith) by the kidneys and can lead to lithium toxicity.
  • Nonsteroidal anti-inflammatory drugs (NSAIDs), for example, ibuprofen (Motrin), may reduce the blood pressure lowering effects of hydrochlorothiazide. Blood sugar levels can be elevated by hydrochlorothiazide, necessitating adjustment in the doses of medications that are used for treating diabetes.
  • Combining hydrochlorothiazide with corticosteroids may increase the risk for low levels of blood potassium and other electrolytes. Low blood potassium (hypokalemia) can increase the toxicity of digoxin (Lanoxin).
  • Cholestyramine (Questran, Questran Light) and colestipol (Colestid) bind to hydrochlorothiazide and reduce its absorption from the gastrointestinal tract by 43% to 85%.

Is hydrochlorothiazide safe to use during pregnancy or while breastfeeding?

  • There are no adequate studies of hydrochlorothiazide in pregnant women. Thiazides may increase the risk of fetal or neonatal jaundice, low platelet levels, and possibly other adverse reactions that have occurred in adults.
  • Hydrochlorothiazide is excreted in breast milk. Intense diuresis using hydrochlorothiazide may reduce the production of breast milk. Otherwise hydrochlorothiazide is considered safe to use during nursing if required by the mother.

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What else should I know about hydrochlorothiazide?

What preparations of hydrochlorothiazide are available?
  • Tablets: 12.5, 25, 50 and 100 mg
  • Capsules: 12.5 mg
How should I keep hydrochlorothiazide stored?

Hydrochlorothiazide should be stored at room temperature, 15 C to 30 C (59 F to 86 F), in a tight, light-resistant container.

How does hydrochlorothiazide work?
  • Hydrochlorothiazide is a diuretic (water pill) used for treating high blood pressure (hypertension) and accumulation of fluid (edema). It works by blocking salt and fluid reabsorption from the urine in the kidneys, causing increased urine output (diuresis). Its mechanism of action in lowering high blood pressure is not well understood.
  • Hydrochlorothiazide is used in combination with many other drugs
When was hydrochlorothiazide approved by the FDA?
  • The FDA approved hydrochlorothiazide in February 1959.
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