Hi doctor, i'm 23 year old female student. I was given riscure 2 mg for 15 days in order to improve concentration, which I took promptly. After that I was again prescribed to continue the same for more than a month. But I did not take it the second time as I experienced several side effects during 15 day period that made it difficult for me to do even the simplest of day to day tasks. Is this tablet usually prescribed for concentration improvement. To be honest I have not felt any positive change instead i've to strain a lot now to concentrate even for a short time. Could you please guide me with your valuable advice thank you.