Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision Substance-Related Disorders > Introduction > Caffeine-Related Disorders Topics Discussed: caffeine-related disorder. Excerpt: "Caffeine can be consumed from a number of different sources, including coffee (brewed = 100–140 mg/8 oz, instant = 65–100 mg/8 oz), tea (40–100 mg/8 oz), caffeinated soda (45 mg/12 oz), over-the-counter analgesics and cold remedies (25–50 mg/tablet), antidrowsiness pills (100–200 mg/tablet), and weight-loss aids (75–200 mg/tablet). Chocolate and cocoa have much lower levels of caffeine (e.g., 5 mg/chocolate bar). The consumption of caffeine is ubiquitous in much of the United States, with an average caffeine intake of approximately 200 mg/day, and up to 30% of Americans consuming 500 mg or more per day. Some individuals who drink large amounts of coffee display some aspects of dependence on caffeine and exhibit tolerance and perhaps withdrawal. However, the data are insufficient at this time to determine whether these symptoms are associated with clinically significant impairment that meets the criteria for Substance Dependence or Substance Abuse. In contrast, there is evidence that Caffeine Intoxication can be clinically significant, and specific text and..." The content above is only an excerpt. For full access subscribe now or log into your account below. You can also purchase 24- or 48-hour access; learn more Username: Password:     Athens Login FORGOT your subscriber username and/or password? Get a reminder via email: The email I registered with is:  Not a subscriber? Subscribe Today PsychiatryOnline is a powerful website that features DSM-IV-TR® and The American Journal of Psychiatry as the cornerstones of an unsurpassed collection of psychiatric references, including books, journals, and self-assessment tools. PsychiatryOnline’s innovative platform makes these resources easy and convenient to use, offering Precise and powerful searching across books and journals. Quick pathways to related material. Mobile access from any computer with a Web connection. Ability to download any book section to PDA. Links from bibliographic references to the full text of journal articles. References to material not located in the PsychiatryOnline collection lead you to PubMed. Learn more about PsychiatryOnline Need more help? PsychiatryOnline Customer Service may be reached by emailing PsychiatryOnline@psych.org or by calling 800-368-5777 (in the U.S.) or 703-907-7322 (outside the U.S.).