4H-Imidazol-4-ones and their pharmaceutical use
 This invention relates to Mannich-furyl(thienyl, pyridyl or phenyl) alkylaminoimidazolinones which have histamine H.sub.2 -antagonist activity. A specific compound of this invention is 2-[2-(5-dimethylaminomethylfuran-2-ylmethylthio)-ethylamino]-1-methyl-imid azolin-4-one. 
Smith Kline & French Laboratories Limited
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Thomas H.
Brown