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When administered intravenously mannitol (mannitol (mannitol injection) injection) is confined to the extracellular space, only slightly metabolized and rapidly excreted by the kidney. Approximately 80% of a 100 g dose appears in the urine in 3 hours. The drug is freely filtered by the glomeruli with less than 10% tubular reabsorption; it is not secreted by tubular cells. Mannitol (mannitol (mannitol injection) injection) induces diuresis by elevating the osmolarity of the glomerular filtrate and thereby hindering tubular reabsorption of water. Excretion of sodium and chloride is also enhanced.
Last reviewed on RxList: 9/30/2008
This monograph has been modified to include the generic and brand name in many instances.
Additional Mannitol IV Information
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