Label claims for total ephedra alkaloids are typically expressed as a standardized percentage of total herb content (e.g., "standardized to 6% ephedra alkaloids"). Many consumers are probably ...

Table 3 lists label claims for ephedra content and compares claims for (-)-ephedrine and total alkaloid content with the amounts determined by HPLC. Only 13 of the 20 supplement labels indicated ...

While ephedra-free supplements are available, they may contain large amounts of caffeine, which might be listed on the label as the ingredient guarana. Further, these ephedra-free products have ...