A Critical Review of Role of Medhya Dravyas (Nootropic Drugs) in Brain Fog with special reference to Covid- 19. Int J Ayu Pharm Res [Internet]. 2022 Oct. 10 [cited 2025 Dec. 28];10(9):86-99. Available from: https://www.ijapr.in/index.php/ijapr/article/view/2526