Caffeine anhydrous is a central nervous system stimulant and a member of the methylxanthines pharmacological class. Coffee beans, tea leaves, and cacao beans are just a few of the plants that naturally contain caffeine. It is found as an ingredient in energy drinks, dietary supplements, and some pharmaceuticals. This substance is well known for its energising effects on the body and brain, which can aid in boosting alertness, lowering weariness, and enhancing attention. Caffeine anhydrous is commonly consumed to stave off sleepiness and improve mental and physical function. It is a naturally occurring methylxanthine derivative utilised as a CNS stimulant.