USA Today reports that the FDA has issued a warning to the maker of the pre-workout supplement Craze. The product was pulled from the shelves of GNC stores on military installations in October following a report that it contained a methamphetamine-like ingredient.
The FDA letter dated April 4 classifies the supplement as "adulterated" for lack of evidence that the ingredient "Dendrobex" has been present in the food supply. Now Craze's maker, Driven Sports, is marketing a new product – Frenzy – as its replacement.