In May 1999, a 35-year-old woman who was taking no other prescription or over-the-counter medications began to use a dietary supplement containing ephedrine for weight loss. She consumed the supplement within the dosage recommended on the label for approximately 30 days; she stopped consuming the supplement while she went on a one week vacation, when she returned she continued her usual dosage, a day after continuing her usual dosage she experienced chest pain and shortness of breathe. She was immediately taken to a hospital and was diagnosed as having a heart attack. Despite the fact that she had no history of cardiovascular risk factors. She was advised by the doctor to discontinue the use of her dietary supplement and thereafter did not experience any additional cardiac-related symptoms. Since the dietary supplement containing ephedrine is so accessible, there have been several reports on reactions ephedrine consumers have experienced. Therefore, in order...