methenamine

methenamine
A condensation product obtained by the action of ammonia upon formaldehyde; in an acid urine, it decomposes to yield formaldehyde, a urinary antiseptic. SYN: hexamine.

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me·the·na·mine mə-'thē-nə-.mēn, -mən n a crystalline compound used in the form of its mandelate C6H12N4·C8H8O3 or hippurate C6H12N4·C9H9NO3 as a urinary antiseptic esp. to treat bacteriuria associated with cystitis and pyelitis called also hexamethylenetetramine, hexamine see MANDELAMINE

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n.
an antiseptic with a wide range of antibacterial activity, used to treat infections and inflammation of the urinary tract, such as cystitis. High doses may cause irritation of the stomach or bladder. Trade name: Hiprex.

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meth·en·amine (meth-enґə-mēn) [USP] a compound that hydrolyzes formaldehyde in acidic urine to provide mild antiseptic activity, used as a urinary antibacterial; administered orally.

Medical dictionary. 2011.

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Look at other dictionaries:

  • Methenamine — Méthénamine Méthénamine Général Nom IUPAC 1,3,5,7 Tétraazatricyclo[3.3.1.13,7]décane Synonymes Hexamine; Urotropine; Hexaméthylènetétramine …   Wikipédia en Français

  • Méthénamine — Général Nom IUPAC 1,3,5,7 Tétraazatricyclo[3.3.1.13,7]décane Synonymes Hexamine; Urotropine; Hexaméthylènetétramine …   Wikipédia en Français

  • méthénamine — ● méthénamine nom féminin Médicament obtenu par action de l ammoniaque sur le formol, utilisé pour son action antiseptique des voies urinaires …   Encyclopédie Universelle

  • methenamine — ☆ methenamine [mə thē′nə mēn΄, mə thē′nəmin ] n. [< METH(YL) + EN(E) + AMINE] HEXAMETHYLENETETRAMINE …   English World dictionary

  • methenamine-silver — A hexamethylenetetramine silver complex prepared by adding silver nitrate to methenamine; a white precipitate appears in the solution which dissolves upon shaking and is stable under refrigeration; used in various histological and histochemical… …   Medical dictionary

  • methenamine silver — a solution of methenamine and silver nitrate, used as a histopathological stain to demonstrate fungal cell walls, Donovan bodies, and Klebsiella pneumoniae rhinoscleromatis. Methenamine silver used to demonstrate a cluster of Pneumocystis… …   Medical dictionary

  • methenamine hippurate — [USP] a compound of methenamine and hippuric acid, used orally as a urinary antibacterial …   Medical dictionary

  • methenamine mandelate — [USP] a salt of methenamine and mandelic acid, used orally as a urinary antibacterial …   Medical dictionary

  • methenamine silver — see under methenamine …   Medical dictionary

  • methenamine silver stain — 1. (for argentaffin cells) a methenamine silver solution used together with gold chloride, sodium thiosulfate, and a safranin O counterstain; argentaffin granules are black while granules of mast cells remain red. 2. (for fungi) Grocott Gomori… …   Medical dictionary

  • methenamine — noun Etymology: methene (methylene) + amine Date: 1926 hexamethylenetetramine especially when used in the form of an organic salt to treat urinary tract infections …   New Collegiate Dictionary

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