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Metolazone
Chemical compound / From Wikipedia, the free encyclopedia
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Metolazone is a thiazide-like diuretic marketed under the brand names Zytanix, Metoz, Zaroxolyn, and Mykrox. It is primarily used to treat congestive heart failure and high blood pressure. Metolazone indirectly decreases the amount of water reabsorbed into the bloodstream by the kidney, so that blood volume decreases and urine volume increases. This lowers blood pressure and prevents excess fluid accumulation in heart failure. Metolazone is sometimes used together with loop diuretics such as furosemide or bumetanide, but these highly effective combinations can lead to dehydration and electrolyte abnormalities.
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Clinical data | |
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Trade names | Zaroxolyn |
AHFS/Drugs.com | Monograph |
MedlinePlus | a682345 |
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Routes of administration | By mouth |
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Pharmacokinetic data | |
Bioavailability | ~65% |
Metabolism | kidney (minimal) |
Elimination half-life | 14 hours |
Excretion | primarily urine |
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ECHA InfoCard | 100.037.748 ![]() |
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Formula | C16H16ClN3O3S |
Molar mass | 365.83 g·mol−1 |
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Melting point | 260 °C (500 °F) |
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It was patented in 1966 and approved for medical use in 1974.[1]