Nootropic agents, often called “smart drugs” or “cognitive enhancers,” purportedly enhance cognitive functions, including memory, creativity, motivation, and overall mental performance. These substances are used to improve cognitive abilities and promote mental well-being. Classification of Nootropic Agents 1. Racetams: Examples: Piracetam, Aniracetam, Oxiracetam. Mechanism: Believed to enhance memory and cognitive …