Were you looking for information about Ma Huang? Ma haung is a common misspelling of ma huang.
Ma huang (ephedra) used to be a common weight loss pill, until it was banned due to safety concerns. The supplement is chemically similar to amphetamines, which may help to suppress the appetite and increase metabolism. However, ma huang was banned in the United States after reports that it caused dangerous side effects, such as heart attacks, strokes, and seizures.
(Click Ma Huang to read the full eMedTV article on this topic. This article takes an in-depth look at the safety concerns and possible side effects of ma huang.)