"Smart drugs," also known as nootropics, are substances that some people use to enhance cognitive functions such as memory, creativity, and focus. These drugs can include prescription medications like Adderall and Ritalin, which are typically used to treat conditions like ADHD, as well as over-the-counter supplements like caffeine and L-theanine. While some users report improved mental performance, the effectiveness and safety of smart drugs can vary widely. Many of these substances are not approved for cognitive enhancement, and their long-term effects are not well understood. It's important for individuals to consult healthcare professionals before using any smart drugs.