Ephedra (Ephedra sinica), known in Chinese as ma huang (麻黄), is a plant used in traditional Chinese medicine. The plant and an extract used to treat hay fever and congestionMa huang is a simpathicomimetic agent similar to amphetamine, it is widely used for weight loss. The U.S. FDA banned its use as dietary supplements on April 2004. 
References[change | change source]
- Joseph B. Lillegardand John R. Porterfield Jr 2010 ; Ephedra induced gastric mucosal injury Case Rep. Gastroenterol. 4(1): 79–83.
- Martinez Quintana et al. 2010. Necrosis miocárdica y disfunción ventricular severa en el contexto de abuso crónico de ephedra
- http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2931409/pdf/JOBES2011-764584.pdf M. Inchiosa 2010 J. Obes. 2011; 2011: 764584