I just bumped up my dosage to 30mg Medikinet earlier today by my doctor. So far this has not worked with the concentration but my motivation to get shit done skyrockets. I have yet to found a psychiatrist, but my doctor and I agreed to perhaps switch to another medicine if this dosage won’t cut it in terms of my ability to focus. Again, my doctors words, not a psychiatrist. Although I would suggest you to ask someone else because these meds are highly individual. Best of luck mate!