Xanthine - Wikipediaen.wikipedia.org › wiki › Xanthine
Xanthine is a purine base found in most human body tissues and fluids and in other organisms. Several stimulants are derived from xanthine, including caffeine ...
Caffeine - Wikipediaen.wikipedia.org › wiki › Caffeine
Caffeine is a central nervous system (CNS) stimulant of the methylxanthine class. It is the world's most widely consumed psychoactive drug. Unlike many other ...
Drug class: Stimulant
Duration of action: 3–4 hours
Onset of action: ~1 hour
Metabolism: Primary: CYP1A2; Minor: CYP2E1, ...
Coffee - Wikipediaen.wikipedia.org › wiki › Coffee
Coffee is a brewed drink prepared from roasted coffee beans, the seeds of berries from certain Coffea species. When coffee berries turn from green to bright red ...
Introduced: 15th century
Color: Black, dark brown, light brown, beige
History of coffee
The history of coffee dates back to the 15th century, and possibly ..
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