Stephen J. Schueler, M.D.

Overview Symptoms Treatment specialist Home Care warning signs Prevention Underlying Cause caffeine withdrawal

Caffeine Overdose Underlying Cause

Caffeine usually comes from one of the following sources:

  • Coffee
  • Tea
  • Chocolate
  • Cola drinks

Caffeine Overdose Caffeine Withdrawal

Regular caffeine users may suffer from withdrawal symptoms if caffeine consumption is suddenly stopped.

Withdrawal symptoms generally begin 12-24 hours after stopping caffeine. The symptoms of withdrawal usually peak at 20-48 hours. Most symptoms resolve within a few days, but some individuals may have symptoms for as long as one week.

Common symptoms include:

Less common symptoms include:

Last Updated: Dec 2, 2010 References
Authors: Stephen J. Schueler, MD; John H. Beckett, MD; D. Scott Gettings, MD
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PubMed Caffeine Overdose References
  1. Browne ML. Maternal exposure to caffeine and risk of congenital anomalies: a systematic review. Epidemiology. 2006 May;17(3):324-31. [16570025]
  2. Cupini LM, Calabresi P. Medication-overuse headache: pathophysiological insights. J Headache Pain. 2005 Sep;6(4):199-202. [16362663]
  3. Kamimori GH, Johnson D, Thorne D, Belenky G. Multiple caffeine doses maintain vigilance during early morning operations. Aviat Space Environ Med. 2005 Nov;76(11):1046-50. [16313140]
  4. Lovallo WR, Farag NH, Vincent AS, Thomas TL, Wilson MF. Cortisol responses to mental stress, exercise, and meals following caffeine intake in men and women. Pharmacol Biochem Behav. 2006 Mar;83(3):441-7. [16631247]
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