What is Ephedra (Ephedrine)?
Ephedra, also known as Ma huang, is a naturally occurring substance derived from plants, has been used for centuries in China. Its principal active ingredient is ephedrine, which when chemically synthesized is regulated as a drug. In recent years ephedra products have been extensively promoted to aid weight loss, enhance sports performance, and increase energy. Ephedra works by stimulating the central nervous system, much like adrenaline and caffeine. Advocates say the herb can help people lose weight, but the FDA is concerned about the seriousness of reported adverse events and their increasing number. Because these products are commonly marketed as dietary supplements, there is little or no premarket review by FDA of their safety (or effectiveness), no good dosing information, and no monitoring advice. The FDA received 140 reports of illness or death linked to ephedra alkaloids between 1997 and 1999.
