Example image of eyePlorer eyePlorer map for 'Caffeine': Alkaloid Drug Psychoactive drug Stimulant Xanthine Friedrich Ferdinand Runge Coffee Guarana Heart Mate (beverage) Polyphenol Tea Theobromine Theophylline Bean Fruit Leaf Paralysis Pesticide Camellia sinensis Coffea arabica Coffee bean Kola nut Ilex vomitoria Yerba maté Central nervous system Somnolence Energy drink Soft drink Food and Drug Administration (United States) Generally recognized as safe Diuretic Drug tolerance Plant Cacao Stereoisomerism Chirality (chemistry) Enantiomer Coffea Espresso Coffea canephora Green tea Gyokuro Lapsang souchong Cola Red Bull Decaffeination Excipient Slow-release Chocolate