While the label does have to say that claims have not been reviewed or approved by the FDA, this caution is usually in small print. Lastly, supplements do not have to be manufactured according to any standards. Since herbs are not regulated as drugs, no legal standard exists for their processing, harvesting, or packaging. In many cases contents and potency are not accurately listed on the label. Ephedrine is a central nervous system stimulant and decongestant, which is effective for relieving bronchial asthma, but banned by the International Olympic Committee and National Collegiate Athletic Association.
Ephedrine is structurally similar to the amphetamines and increases heart rate and blood pressure.
Side-effects from ephedrine intake can vary and don't always depend on the dose consumed. Serious adverse effects can occur with in susceptible persons with low doses. Athletes may not realize that ephedrine or other stimulants are in herbal products because the stimulant is not included in the ingredient listing or an unfamiliar name for the stimulant is used. At the very least, the unwitting use of such herbal products may result in a doping suspension. Because of misuse and adverse reactions to products containing ephedrine, approximately 21 states have passed regulations stricter than federal regulations.