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However, the pharmacologist John Abel had already prepared an extract from adrenal glands as early as 1897, and coined the name "epinephrine " to describe it (from the Greek "epi" and "nephros", "on top of the kidneys"). In the belief that Abel's extract was the same as Takamine's (a belief since disputed), epinephrine became the generic name in the US, and remains the pharmaceutical's United States Adopted Name and International Nonproprietary Name (though the name adrenaline is frequently used).