Biologically Active Substance
xanthine Audio
xan·thine [ zan-theen, -thin ]
More Information:
ChemID; DailyMed; PDR
Definitions related to xanthine:
  • 2,6-dioxypurine; purine base found in most body tissues and fluids, certain plants, and some urinary calculi; it is an intermediate in the degradation of adenosine monophosphate to uric acid, being formed by oxidation of hypoxanthine; methylated xanthine compounds caffeine, theobromine, and theophylline and their derivatives are used in medicine for their bronchodilator effects.
    CRISP Thesaurus
    National Institutes of Health, 2006
  • A purine base found in most body tissues and fluids, certain plants, and some urinary calculi. It is an intermediate in the degradation of adenosine monophosphate to uric acid, being formed by oxidation of hypoxanthine. The methylated xanthine compounds caffeine, theobromine, and theophylline and their derivatives are used in medicine for their bronchodilator effects. (Dorland, 28th ed)
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
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