Synonyms: Theophylline,7-(1,3-dioxolan-2-ylmethyl)- (7CI);2-(7'-Theophyllinemethyl)-1,3-dioxolane;ABC 12/3;ABC 1213;Ansimar;Dioxyfilline;Doxophylline;Maxivent;Ventax;1H-purine-2,6-dione, 7-(1,3-dioxolan-2-ylmethyl)-3,7-dihydro-1,3-dimethyl-;7-(1,3-dioxolan-2-ylmethyl)-1,3-dimethyl-3,7-dihydro-1H-purine-2,6-dione;