Were you looking for information about Ephedra? Effedra is a common misspelling of ephedra.
Ephedra (ma huang) is a compound commonly used in traditional Chinese medicine but no longer allowed to be made as a weight loss supplement, due to safety concerns. While the chemicals in this substance may suppress the appetite or increase metabolism, they are also responsible for many of the pill's dangerous side effects (including high blood pressure, strokes, and heart attacks). Ephedra has been banned in the United States, and the ban is still in place, despite what you may read on the Internet.
(Click Ephedra for more information about ephedra and its uses, potential dangers, and possible side effects. You can also click on the various links in the box to the right to access specific topics on ephedra.)