Used in dietary supplements for weight management due to its stimulant properties, often included in formulations aimed at increasing energy expenditure and fat oxidation. Commonly found in products marketed for appetite suppression and metabolic enhancement. Also used in some nasal decongestants for its vasoconstrictive effects. Frequently combined with other stimulants like caffeine to amplify thermogenic effects. Its use is controversial in sports due to potential performance-enhancing and stimulant-related side effects.