is a common ingredient in herbal dietary supplements used for weight loss. Ephedrine can slightly suppress your appetite, but no studies have shown it to be effective in weight loss. Ephedrine is the main active ingredient of ephedra. Ephedra is also known as Ma Huang, not ephedrine. High doses of ephedra can cause very fast heartbeat, high blood pressure, irregular heart beats, stroke, vomiting, psychoses and even death.
