I a dependent upon modalert 200 mg to study for exam. Is it safe to take or is there a better alternative. I do not feel motivated to study without it. I am also suffering from generalised anxiety and mild depression and also taking bupropion 150 mg and censpram lite at night. My cognitive abilities go down over the years earlier I was intelligent and motivated to do things I scored 90 % in 12th standard but now I am struggling to do simple task. Can anyone recommend me how to improve my intelligence and cognitive abilities.