After all, a person's natural impulse is to take higher doses of the drug in order to achieve larger, more powerful effects. The FDA wants warnings on all ephedrine-containing products, advising consumers not to exceed the recommended dose, and to use the product for no more than seven consecutive days. Additionally, combining ephedrine's effects on the body with those of caffeine can really be dangerous, since the two drugs together are an extremely potent combination - this is definitely worrisome for the college crowd, where caffeine is often a way of life. In short, the diet pills are essentially a stimulant, much like the caffeine weight loss pills of old. Ephedrine's Medical Uses Ephedrine and its chemically related cousin, pseudoephedrine, however, are used for legitimate medical purposes, especially for treating colds and other breathing disorders.
Chances are, that was the ephedrine-like compound kicking in.
At these low doses, that stimulated feeling is about the worst of it for most people. Ephedrine is also not recommended for use in children under 12, pregnant women, or the elderly. As it has been said time and time again, the only safe and effective way to achieve permanent weight loss is through healthy eating and regular exercise.