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  1. Caffeine: How much is too much? - Mayo Clinic

    Feb 21, 2025 · Caffeine affects some people more than others. If caffeine affects you, even small amounts may give you effects that you don't want, such as being restless or not being able to sleep. …

  2. Coffee and health: What does the research say? - Mayo Clinic

    Jan 31, 2025 · Some benefits are linked to caffeine. Other benefits are related to the other components in coffee. But in general, studies find that coffee is linked to health in many ways. Drinking coffee …

  3. Caffeine (oral route) - Side effects & dosage - Mayo Clinic

    Oct 1, 2025 · If you are using caffeine tablets: Limit the use of medicines, foods, or beverages that contain caffeine. Taking too much caffeine may cause nervousness, irritability, sleeplessness, and …

  4. Caffeine: How does it affect blood pressure? - Mayo Clinic

    Jul 9, 2024 · How does caffeine affect blood pressure? Caffeine may cause a brief rise in your blood pressure, even if you don't have high blood pressure. This short-term spike in blood pressure …

  5. Caffeine content for coffee, tea, soda and more - Mayo Clinic

    Feb 6, 2025 · Find out how much caffeine is in coffee, tea, soda and energy drinks. You may be getting more caffeine than you think you are.

  6. Butalbital, acetaminophen, and caffeine (oral route) - Side effects ...

    Nov 1, 2025 · Butalbital, acetaminophen, and caffeine combination is used to relieve symptoms of tension (or muscle contraction) headaches. Butalbital belongs to the group of medicines called …

  7. Caffeine: Does it affect blood sugar? - Mayo Clinic

    Mar 7, 2024 · For some people with diabetes, one cup of coffee may raise or lower blood sugar. Learn how caffeine can affect blood sugar.

  8. Butalbital, acetaminophen, caffeine, and codeine (oral route)

    Dec 1, 2025 · Description Butalbital, acetaminophen, caffeine, and codeine combination is used to relieve symptoms of tension (or muscle contraction) headaches. Extended and repeated use of this …

  9. Caffeine citrate (intravenous route) - Side effects & uses

    Oct 1, 2025 · Description Caffeine citrate injection is used to treat short-term apnea of prematurity when premature babies (infants between 28 and 32 weeks gestational age) stop breathing. Apnea of …

  10. Ergotamine and caffeine (oral route) - Side effects & dosage

    Dec 1, 2025 · Ergotamine and caffeine combination is used to treat or prevent vascular headaches, including migraine, migraine variants, or histaminic cephalalgia. It will not relieve pain other than from …