[(Science: chemistry) An alkaloidal ureide, C7H8N4O2, homologous with and resembling caffeine, produced artificially, and also extracted from cacao and chocolate (from theobroma Cacao) as a bitter white crystalline substance. Synonym: dimethyl xanthine.
[1. An alkaloid resembling caffeine and theophylline in its action and chemical structure, prepared from the dried ripe seed of Theobroma cacao or made synthetically; formerly used widely as a diuretic, myocardial stimulant, dilator of coronary arteries, and smooth muscle relaxant. Compounds with calcium gluconate, calcium salicylate, sodium acetate, sodium lactate, and sodium salicylate have been listed.