Although we endeavor to provide accurate and up-to-date information, no guarantee is guaranteed. Caffeine and aspirin were formerly utilized in weight loss pills in conjunction with ephedrine. They're also present in pain medicines, usually in combination with acetaminophen or butalbital. Aspirin by itself is a pain reliever and anti-inflammatory, while caffeine comes from coffee, kola nuts, guarana, and chocolate. It can also be found in energy drinks, yerba maté tea, and soda. Ephedra is a natural product derived from the Chinese ephedra plant that has been used as a stimulant for thousands of years. Modern science has expanded on this knowledge by creating ephedra alkaloids such as ma huang, which are similar to amphetamines but without the negative effects. As mentioned, ephedra has been associated with increased blood pressure and heart rate, therefore its use is now restricted. However, there are other dietary supplements that contain ephedra or are based on it. These include KannaLife, which contains 50mg of ephedra daily; Metabolife 356, which includes 350mg of ephedra daily; and Powerade Powder, which provides 70-100mg of ephedra daily. All of these products are marketed as diet aids or fat burners and should not be used by people looking to lose weight.