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Thiazide (/ ˈ θ aɪ ə z aɪ d /) refers to both a class of sulfur-containing organic molecules [1] and a class of diuretics based on the chemical structure of benzothiadiazine. [2] The thiazide drug class was discovered and developed at Merck and Co. in the 1950s. [ 3 ]
Hydrochlorothiazide, sold under the brand name Hydrodiuril among others, is a diuretic medication used to treat hypertension and swelling due to fluid build-up. [4] Other uses include treating diabetes insipidus and renal tubular acidosis and to decrease the risk of kidney stones in those with a high calcium level in the urine. [4]
[2] [3] [4] Specifically it is used in those who develop low blood potassium (hypokalemia) when on only hydrochlorothiazide. [2] [3] It is taken by mouth. [2] [3] [4] Side effects may include nausea, trouble sleeping, dizziness, feeling light headed with standing, kidney problems, allergies, and muscle cramps.
For loop diuretics, thiazide diuretics and thiazide-like diuretics, their common side effects include hypokalemia, hyponatremia, metabolic alkalosis and hyperglycaemia. [4] For potassium-sparing diuretics, its common side effects include hyponatremia, hyperkalemia, metabolic acidosis and sexual dysfunction specifically for spironolactone. [4] [5]
Potassium-sparing diuretics or antikaliuretics [1] refer to drugs that cause diuresis without causing potassium loss in the urine. [2] They are typically used as an adjunct in management of hypertension , cirrhosis , and congestive heart failure . [ 3 ]
Hypokalemia is a low level of potassium (K +) in the blood serum. [1] Mild low potassium does not typically cause symptoms. [3] Symptoms may include feeling tired, leg cramps, weakness, and constipation. [1] Low potassium also increases the risk of an abnormal heart rhythm, which is often too slow and can cause cardiac arrest. [1] [3]
Both thiazide diuretics and thiazide-like diuretics are effective in reducing risk of stroke. [ 5 ] [ 6 ] [ 7 ] Both drug classes appear to have comparable rates of adverse effects as other antihypertensives such as angiotensin II receptor blockers and dihydropyridine calcium channel blockers and lesser prevalence of side-effects when compared ...
The most common side effect is headache (about 8% of people taking it) and nausea, loss of appetite, weakness, rash and dizziness (each about 3%). [2] Common side effects (1/10 - 1/100) include: [2] General: weakness, fatigue, loss of appetite, headache, dizziness. Circulatory system: arrhythmia. Gastrointestinal: nausea, diarrhea, abdominal pain.