The US Food and Drug Administration is unimpressed by the fad for drinks that contain a double hit - alcohol and caffeine. Unless makers supply the FDA with scientific evidence that the drinks are safe they could be banned within months.rnThe agency is worried that consuming the drinks - which can mask the effect of alcohol - leads to rash behaviour, car crashes, violence and assaults. The FDA issued the ultimatum last week in response to a request made by the National Association of Attorneys General. "Caffeine added to alcohol poses a significant public health threat," said a task force headed by the attorney-generals of Utah, Guam and Connecticut.
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