A diagnosis of “caffeine intoxication” applies when a person has consumed a high dose of caffeine (typically in excess of 250 mg) with five or more of the following symptoms:
- Restlessness
- Nervousness
- Excitement
- Insomnia
- Flushed face
- Diuresis
- Gastrointestinal disturbance
- Muscle twitching
- Rambling flow of thought and speech
- Rapid heartbeat or cardia arrhythmia
- Periods of inexhaustibility
- Psychomotor agitation
The symptoms cause significant distress or impairment in social, occupational, or other important areas of functioning. The symptoms are not attributable to another medical condition or mental disorder, including intoxication with another substance.