Synonyms : 1, 3, 7-Trimethylxanthine, Berlin-Chemie Brand of Caffeine, Bristol-Myers Squibb Brand of Caffeine, Caffedrine, Coffeinum N, Coffeinum Purrum, Dexitac, Durvitan, GlaxoSmithKline Brand of Caffeine, Merck dura Brand of Caffeine, No Doz, Passauer Brand of Caffeine