Why is caffeine added to ephedrine-containing products?

Caffeine is often added to ephedrine-containing products because it can enhance the thermogenic and fat-burning effects of ephedrine. The combination can increase energy expenditure and promote weight loss more effectively than either compound alone. Additionally, caffeine may help mitigate some of the side effects associated with ephedrine, such as fatigue or lethargy. This synergistic effect is commonly utilized in dietary supplements and performance-enhancing products.