Hi,
Welcome to HCM,
After going through history it appears after head injury there may be convulsions or some Psychiatric abnormality like
major depression and mania that may be the reason.
He must be under continuous follow up of the treating doctor if he is taking it without consultation, then please visit the Psychiatrist and Neuro physician to assess if it is required or can be withdrawn and if needs to be continued at what dose.
His personality should be analysed and treated accordingly.He should certainly
consult a Psychiatrist.
This drug can have side effects but he is taking for so many years.
Abnormal dreams, abnormal gait, agitation, in-coordination,
muscle rigidity, memory loss, sleeplessness, tingling,
involuntary movements, abnormal thinking and fainting weight gain and low or
high blood pressure.
Please take good care of him
Good Luck.
Dr.Akhilesh Dubey M.D.