CAFFEIN, CAFFEINA
\kˈafiːn], \kˈafiːn], \k_ˈa_f_iː_n]\
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An alkaloid, C8H10N4O2 + H2O found in coffee, tea, mate, cola nuts, and guarana. Used as a heart stimulant and in neuralgia. Different names were given to the caffeine found in different plants, thus that found in tea was called thein, before its identity with caffein was fully established
By Smith Ely Jelliffe
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