Caffeinism describes the symptoms which occur when individuals who regularly drink large amounts of caffeine suddenly stop. While generally mild, symptoms have been reported to include muscle twitching and heart palpitations. In the DSM-IV, there are several disorders listed specifically associated with the use of caffeine.

Pregnant women are usually recommended to reduce their intake of caffeine, although the precise amount differs from study to study. In a study performed by Kaiser Permanente it was reported that the intake of 200 mg of caffeine per day was a significant risk for miscarriage. Another study, however, in the same year denied any association between risk of miscarriage and caffeine intake.

In light of the differing scientific evidence, one would probably be prudent to avoid or at least limit the use of caffeine in pregnancy, or even for general health. When any substance can be associated with a withdrawal syndrome, I believe...
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