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Caffeine is a drug that stimulates (increases the activity of) your brain and nervous system. Caffeine is found in many drinks such as coffee, tea, soft drinks and energy drinks. Chocolate also contains caffeine. Energy drinks often have more caffeine and sugar than soft drinks.
Caffeine is a bitter, white crystalline purine, a methylxanthine alkaloid, and is chemically related to the adenine and guanine bases of deoxyribonucleic acid ( ...
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Sep 8, 2021 · What is caffeine? Caffeine is a bitter substance that occurs naturally in more than 60 plants including: Coffee beans; Tea leaves ...
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Caffeine is a central nervous system stimulant of the methylxanthine class. It is mainly used as a eugeroic or as a mild cognitive enhancer to increase alertness and attentional performance. Wikipedia
Formula: C₈H₁₀N₄O₂
Molar mass: 194.19 g/mol
IUPAC ID: 1,3,7-Trimethylpurine-2,6-dione
Addiction liability: Relatively low: 9%
AHFS/Drugs.com: Monograph
ATC code: N06BC01 (WHO) D11AX26 (WHO), V04CG30 (WHO)
Bioavailability: 99%
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This is equal to about 4 cups of coffee. Caffeine is possibly unsafe when used for a long time or in doses over 400 mg daily. Caffeine can cause insomnia, ...
Caffeine has nearly 100% oral bioavailability and is the primary route of administration. Caffeine can be sourced from coffee beans, cacao beans, kola nuts, tea ...
Up to 400 milligrams (mg) of caffeine a day appears to be safe for most healthy adults. That's roughly the amount of caffeine in four cups of brewed coffee, 10 ...
Jan 17, 2024 · What is caffeine? Caffeine is a stimulant drug, which means it speeds up the messages travelling between the brain and the body.
Sep 7, 2023 · For reference, a 12 ounce can of a caffeinated soft drink typically contains 30 to 40 milligrams of caffeine, an 8-ounce cup of green or black ...
Jul 23, 2020 · Coffee. 1 cup or 8 ounces of brewed coffee contains about 95 mg caffeine. The same amount of instant coffee contains about 60 mg caffeine.