The US Food and Drug Administration on November 17, 2010, warned four companies that the caffeine added to their malt alcoholic beverages is an “unsafe food additive” and said that further action, including seizure of their products, is possible under federal law.

The companies receiving Warning Letters and their products are:
• Charge Beverages Corp: Core High Gravity HG, Core High Gravity HG Orange, and Lemon Lime Core Spiked
• New Century Brewing Co, LLC: Moonshot
• Phusion Projects, LLC (doing business as Drink Four Brewing Co): Four Loko
• United Brands Company Inc: Joose and Max

The FDA’s action follows a scientific review by the agency. It examined the published peer-reviewed literature on the co-consumption of caffeine and alcohol; consulted with experts in the fields of toxicology, neuropharmacology, emergency medicine, and epidemiology; and reviewed information provided by product manufacturers. FDA also performed its own independent laboratory analysis of these products.

“FDA does not find support for the claim that the addition of caffeine to these alcoholic beverages is ‘generally recognized as safe,’ which is the legal standard,” said Dr Joshua M. Sharfstein, principal deputy commissioner. “To the contrary, there is evidence that the combinations of caffeine and alcohol in these products pose a public health concern.”

Experts have raised concerns that caffeine can mask some of the sensory cues individuals might normally rely on to determine their level of intoxication. The FDA said peer-reviewed studies suggest that the consumption of beverages containing added caffeine and alcohol is associated with risky behaviors that may lead to hazardous and life-threatening situations.

The agency said the products named in the Warning Letters are being marketed in violation of the Federal Food, Drug, and Cosmetic Act (FFDCA). Each Warning Letter requests that the recipient inform the FDA in writing within 15 days of the specific steps that will be taken to remedy the violation and prevent its recurrence. If a company does not believe its products are in violation of the FFDCA, it may present its reasoning and any supporting information as well.

If the FDA believes that the violation continues to exist, the agency may pursue an enforcement action that could include seizure of the products or an injunction to prevent the firm from continuing to produce the product until the violation has been corrected.