Caffeine withdrawal

Essential (Required) Features:

• The presence of a clinically significant cluster of symptoms, behaviours, and/or physiological features that occurs upon cessation or reduction in the use of caffeine in individuals who have developed dependence on caffeine or have used caffeine for a prolonged period or in large amounts.
• Presenting features of Caffeine Withdrawal may include headache, marked fatigue or drowsiness, irritability, depressed or dysphoric mood, nausea or vomiting, and difficulty concentrating.
• The severity and duration of Caffeine Withdrawal is related to the amount, frequency and duration of caffeine use prior to cessation of use.
• The symptoms are not better accounted for by another medical condition or another mental disorder.

Additional Clinical Features:

• Onset of Caffeine Withdrawal is typically 12 to 48 hours after the last use and may last up to 7 days.
• Characteristic features of Caffeine Withdrawal are opposite to the acute pharmacological effects of caffeine.
• Caffeine Withdrawal symptoms become more severe with repeated episodes of withdrawal (termed ‘kindling’), with aging, or in the presence of comorbid medical conditions.

Boundary with Normality (Threshold):

• Caffeine Withdrawal should only be diagnosed when symptoms are consistent with those recognized as occurring upon cessation or reduction in use of caffeine. Recent cessation or reduction of use and the presence of various non-specific transient symptoms is not sufficient to make the diagnosis of Caffeine Withdrawal.
• Withdrawal symptoms should be differentiated from the transient physiological aftereffects of intoxication (‘hangover effect’).
• Some individuals who have previously had Caffeine Dependence may experience symptoms similar to those of Caffeine Withdrawal months after the last use of the substance, particularly when the individual encounters stimuli (e.g., drug paraphernalia) and contexts (e.g., location where use was frequent) previously associated with past caffeine use. These symptoms are more transient than those observed during Caffeine Withdrawal and occur exclusively when in contact with associated stimuli and contexts. A diagnosis of Caffeine Withdrawal should not be assigned under these circumstances.

Course Features:

• Caffeine Withdrawal is time-limited. Factors that influence the features and time course of Caffeine Withdrawal include: (1) the severity of Caffeine Dependence, if present, (2) the dose, frequency of use, and duration of caffeine use prior to cessation or reduction of that use, (3) the half-life and duration of action of caffeine, and (4) the presence of comorbid medical conditions (e.g., metabolic disturbances).

Culture-Related Features:

• Symptoms of withdrawal depend largely on the psychotropic characteristics of caffeine. However, specific cultures may emphasize certain symptoms of withdrawal over others, making it more difficult to conduct a differential diagnosis. In addition, vernacular terms for withdrawal vary greatly.

Boundaries with Other Disorders and Conditions (Differential Diagnosis):

• Boundary with Caffeine Intoxication: The onset of Caffeine Intoxication occurs immediately or shortly after the consumption of caffeine. In contrast, Caffeine Withdrawal occurs upon cessation or reduction in the amount of caffeine in the context of Caffeine Dependence or when caffeine has been taken for a prolonged period or in large amounts. For caffeine, the intoxication and withdrawal syndromes are typically distinct.
• Boundary with other Caffeine-Induced Mental Disorders: Mental or behavioural symptoms that arise during Caffeine Withdrawal should only be used as a basis for diagnosing a Caffeine-Induced Mental Disorder if the intensity or duration of the symptoms is substantially in excess of those that are characteristic of the Caffeine Withdrawal and the symptoms are sufficiently severe to warrant specific clinical attention. In such cases, if the withdrawal syndrome is ongoing, diagnoses of both Caffeine Withdrawal and a Caffeine-Induced Mental Disorder may be assigned.
• Boundary with other mental disorders: Various symptoms associated with Caffeine Withdrawal overlap with those that are characteristic of other mental disorders (e.g., depressive and anxiety symptoms). Symptoms of Caffeine Withdrawal occur in specific temporal relationship to the cessation of use of caffeine and diminish with the passage of time. Evidence supporting a mental disorder diagnosis would include the symptoms preceding the onset of caffeine use, the symptoms persisting for a substantial period of time after cessation of caffeine or withdrawal (e.g., 1 month or more, depending on the substance), or other evidence of a pre-existing mental disorder (e.g., a history of prior episodes not associated with caffeine use).
• Boundary with other medical conditions: It may be difficult to distinguish between various symptoms associated with Caffeine Withdrawal (e.g., headache, nausea or vomiting, fatigue) and those that are characteristic of other medical conditions. Symptoms of Caffeine Withdrawal occur in specific temporal relationship to the cessation of use of caffeine and diminish with the passage of time.