Synonyms: Caffeine Imp. D (EP), Pentoxifylline Imp. A (EP), Theophylline-Ethylenediamine Anhydrous Imp. G (EP), Theobromine, Theophylline-Ethylenediamine Imp. G (EP), Caffeine Impurity D, Pentoxifylline Impurity A, Theophylline-Ethylenediamine Impurity G
