I am taking Zyprexa 30mg, stelazine 20mg, Zoloft 200mg, clonazepam 0.5mg, bisoprolol 10mg, metformin 1000mg, wellbutrin 300mg. I have had lack of concentration, problems with understanding what I read and memory problems. Fortunaetily, wellbutrin helps me with these problems.I think if I take Wellbutrin 450mg it will make a significant difference. But my psychiatrist is against this idea. I just turned 48yrs old without any other problem, except high blood pressure which is under control. Can you give me ideas as to how I can persuade my doctor to prescribe 450mg of wellbutrin